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  Subjects -> ENGINEERING (Total: 2270 journals)
    - CHEMICAL ENGINEERING (191 journals)
    - CIVIL ENGINEERING (183 journals)
    - ELECTRICAL ENGINEERING (99 journals)
    - ENGINEERING (1199 journals)
    - ENGINEERING MECHANICS AND MATERIALS (390 journals)
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    - MECHANICAL ENGINEERING (89 journals)

ENGINEERING (1199 journals)                  1 2 3 4 5 6 | Last

Showing 1 - 200 of 1205 Journals sorted alphabetically
3 Biotech     Open Access   (Followers: 7)
3D Research     Hybrid Journal   (Followers: 19)
AAPG Bulletin     Full-text available via subscription   (Followers: 5)
AASRI Procedia     Open Access   (Followers: 15)
Abstract and Applied Analysis     Open Access   (Followers: 3)
Aceh International Journal of Science and Technology     Open Access   (Followers: 2)
ACS Nano     Full-text available via subscription   (Followers: 217)
Acta Geotechnica     Hybrid Journal   (Followers: 6)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 5)
Acta Polytechnica : Journal of Advanced Engineering     Open Access   (Followers: 2)
Acta Scientiarum. Technology     Open Access   (Followers: 3)
Acta Universitatis Cibiniensis. Technical Series     Open Access  
Active and Passive Electronic Components     Open Access   (Followers: 7)
Adaptive Behavior     Hybrid Journal   (Followers: 10)
Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi     Open Access  
Adsorption     Hybrid Journal   (Followers: 4)
Advanced Engineering Forum     Full-text available via subscription   (Followers: 4)
Advanced Science     Open Access   (Followers: 4)
Advanced Science Focus     Free   (Followers: 3)
Advanced Science Letters     Full-text available via subscription   (Followers: 5)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 7)
Advanced Synthesis & Catalysis     Hybrid Journal   (Followers: 17)
Advances in Artificial Neural Systems     Open Access   (Followers: 4)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Complex Systems     Hybrid Journal   (Followers: 7)
Advances in Engineering Software     Hybrid Journal   (Followers: 25)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 14)
Advances in Fuzzy Systems     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 9)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 19)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 23)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 28)
Advances in Operations Research     Open Access   (Followers: 11)
Advances in OptoElectronics     Open Access   (Followers: 5)
Advances in Physics Theories and Applications     Open Access   (Followers: 12)
Advances in Polymer Science     Hybrid Journal   (Followers: 40)
Advances in Porous Media     Full-text available via subscription   (Followers: 4)
Advances in Remote Sensing     Open Access   (Followers: 35)
Advances in Science and Research (ASR)     Open Access   (Followers: 6)
Aerobiologia     Hybrid Journal   (Followers: 1)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 4)
AIChE Journal     Hybrid Journal   (Followers: 28)
Ain Shams Engineering Journal     Open Access   (Followers: 5)
Akademik Platform Mühendislik ve Fen Bilimleri Dergisi     Open Access  
Alexandria Engineering Journal     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 27)
American Journal of Engineering and Applied Sciences     Open Access   (Followers: 11)
American Journal of Engineering Education     Open Access   (Followers: 9)
American Journal of Environmental Engineering     Open Access   (Followers: 16)
American Journal of Industrial and Business Management     Open Access   (Followers: 23)
Analele Universitatii Ovidius Constanta - Seria Chimie     Open Access  
Annals of Combinatorics     Hybrid Journal   (Followers: 3)
Annals of Pure and Applied Logic     Open Access   (Followers: 2)
Annals of Regional Science     Hybrid Journal   (Followers: 7)
Annals of Science     Hybrid Journal   (Followers: 7)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applicable Analysis: An International Journal     Hybrid Journal   (Followers: 1)
Applied Catalysis A: General     Hybrid Journal   (Followers: 6)
Applied Catalysis B: Environmental     Hybrid Journal   (Followers: 8)
Applied Clay Science     Hybrid Journal   (Followers: 4)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 12)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 3)
Applied Nanoscience     Open Access   (Followers: 7)
Applied Network Science     Open Access  
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Physics Research     Open Access   (Followers: 3)
Applied Sciences     Open Access   (Followers: 2)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4)
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 5)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 4)
Archives of Foundry Engineering     Open Access  
Archives of Thermodynamics     Open Access   (Followers: 7)
Arkiv för Matematik     Hybrid Journal   (Followers: 1)
ASEE Prism     Full-text available via subscription   (Followers: 2)
Asian Engineering Review     Open Access  
Asian Journal of Applied Science and Engineering     Open Access   (Followers: 1)
Asian Journal of Applied Sciences     Open Access   (Followers: 2)
Asian Journal of Biotechnology     Open Access   (Followers: 7)
Asian Journal of Control     Hybrid Journal  
Asian Journal of Current Engineering & Maths     Open Access  
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 8)
Assembly Automation     Hybrid Journal   (Followers: 2)
at - Automatisierungstechnik     Hybrid Journal   (Followers: 1)
ATZagenda     Hybrid Journal  
ATZextra worldwide     Hybrid Journal  
Australasian Physical & Engineering Sciences in Medicine     Hybrid Journal   (Followers: 1)
Australian Journal of Multi-Disciplinary Engineering     Full-text available via subscription   (Followers: 2)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 7)
Avances en Ciencias e Ingeniería     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 1)
Bangladesh Journal of Scientific and Industrial Research     Open Access  
Basin Research     Hybrid Journal   (Followers: 3)
Batteries     Open Access   (Followers: 3)
Bautechnik     Hybrid Journal   (Followers: 1)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 23)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 3)
BER : Manufacturing Survey : Full Survey     Full-text available via subscription   (Followers: 2)
BER : Motor Trade Survey     Full-text available via subscription   (Followers: 1)
BER : Retail Sector Survey     Full-text available via subscription   (Followers: 2)
BER : Retail Survey : Full Survey     Full-text available via subscription   (Followers: 2)
BER : Survey of Business Conditions in Manufacturing : An Executive Summary     Full-text available via subscription   (Followers: 3)
BER : Survey of Business Conditions in Retail : An Executive Summary     Full-text available via subscription   (Followers: 3)
Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika (BVAAP)     Open Access   (Followers: 1)
Biofuels Engineering     Open Access  
Biointerphases     Open Access   (Followers: 1)
Biomaterials Science     Full-text available via subscription   (Followers: 9)
Biomedical Engineering     Hybrid Journal   (Followers: 16)
Biomedical Engineering and Computational Biology     Open Access   (Followers: 13)
Biomedical Engineering Letters     Hybrid Journal   (Followers: 5)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 16)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 31)
Biomedical Engineering: Applications, Basis and Communications     Hybrid Journal   (Followers: 5)
Biomedical Microdevices     Hybrid Journal   (Followers: 8)
Biomedical Science and Engineering     Open Access   (Followers: 3)
Biomedizinische Technik - Biomedical Engineering     Hybrid Journal  
Biomicrofluidics     Open Access   (Followers: 4)
BioNanoMaterials     Hybrid Journal   (Followers: 1)
Biotechnology Progress     Hybrid Journal   (Followers: 39)
Boletin Cientifico Tecnico INIMET     Open Access  
Botswana Journal of Technology     Full-text available via subscription  
Boundary Value Problems     Open Access   (Followers: 1)
Brazilian Journal of Science and Technology     Open Access   (Followers: 2)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 10)
Bulletin of Canadian Petroleum Geology     Full-text available via subscription   (Followers: 14)
Bulletin of Engineering Geology and the Environment     Hybrid Journal   (Followers: 3)
Bulletin of the Crimean Astrophysical Observatory     Hybrid Journal  
Cahiers, Droit, Sciences et Technologies     Open Access  
Calphad     Hybrid Journal  
Canadian Geotechnical Journal     Full-text available via subscription   (Followers: 13)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 40)
Case Studies in Engineering Failure Analysis     Open Access   (Followers: 7)
Case Studies in Thermal Engineering     Open Access   (Followers: 3)
Catalysis Communications     Hybrid Journal   (Followers: 6)
Catalysis Letters     Hybrid Journal   (Followers: 2)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 8)
Catalysis Science and Technology     Free   (Followers: 6)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysis Today     Hybrid Journal   (Followers: 5)
CEAS Space Journal     Hybrid Journal  
Cellular and Molecular Neurobiology     Hybrid Journal   (Followers: 3)
Central European Journal of Engineering     Hybrid Journal   (Followers: 1)
CFD Letters     Open Access   (Followers: 6)
Chaos : An Interdisciplinary Journal of Nonlinear Science     Hybrid Journal   (Followers: 2)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Engineering     Open Access   (Followers: 2)
Chinese Science Bulletin     Open Access   (Followers: 1)
Ciencia e Ingenieria Neogranadina     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencias Holguin     Open Access   (Followers: 1)
CienciaUAT     Open Access  
Cientifica     Open Access  
CIRP Annals - Manufacturing Technology     Full-text available via subscription   (Followers: 11)
CIRP Journal of Manufacturing Science and Technology     Full-text available via subscription   (Followers: 14)
City, Culture and Society     Hybrid Journal   (Followers: 21)
Clay Minerals     Full-text available via subscription   (Followers: 9)
Clean Air Journal     Full-text available via subscription   (Followers: 2)
Coal Science and Technology     Full-text available via subscription   (Followers: 3)
Coastal Engineering     Hybrid Journal   (Followers: 11)
Coastal Engineering Journal     Hybrid Journal   (Followers: 4)
Coatings     Open Access   (Followers: 2)
Cogent Engineering     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 4)
Color Research & Application     Hybrid Journal   (Followers: 1)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 13)
Combustion, Explosion, and Shock Waves     Hybrid Journal   (Followers: 13)
Communications Engineer     Hybrid Journal   (Followers: 1)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 2)
Components, Packaging and Manufacturing Technology, IEEE Transactions on     Hybrid Journal   (Followers: 23)
Composite Interfaces     Hybrid Journal   (Followers: 6)
Composite Structures     Hybrid Journal   (Followers: 252)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 176)
Composites Part B : Engineering     Hybrid Journal   (Followers: 222)
Composites Science and Technology     Hybrid Journal   (Followers: 164)
Comptes Rendus Mécanique     Full-text available via subscription   (Followers: 2)
Computation     Open Access  
Computational Geosciences     Hybrid Journal   (Followers: 12)
Computational Optimization and Applications     Hybrid Journal   (Followers: 7)
Computational Science and Discovery     Full-text available via subscription   (Followers: 2)
Computer Applications in Engineering Education     Hybrid Journal   (Followers: 6)
Computer Science and Engineering     Open Access   (Followers: 17)
Computers & Geosciences     Hybrid Journal   (Followers: 25)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 5)
Computers and Electronics in Agriculture     Hybrid Journal   (Followers: 4)
Computers and Geotechnics     Hybrid Journal   (Followers: 8)
Computing and Visualization in Science     Hybrid Journal   (Followers: 6)
Computing in Science & Engineering     Full-text available via subscription   (Followers: 25)
Conciencia Tecnologica     Open Access  
Concurrent Engineering     Hybrid Journal   (Followers: 3)
Continuum Mechanics and Thermodynamics     Hybrid Journal   (Followers: 6)
Control and Dynamic Systems     Full-text available via subscription   (Followers: 8)
Control Engineering Practice     Hybrid Journal   (Followers: 41)
Control Theory and Informatics     Open Access   (Followers: 7)
Corrosion Science     Hybrid Journal   (Followers: 24)
CT&F Ciencia, Tecnologia y Futuro     Open Access  
CTheory     Open Access  

        1 2 3 4 5 6 | Last

Journal Cover CIRP Journal of Manufacturing Science and Technology
  [SJR: 1.208]   [H-I: 23]   [14 followers]  Follow
    
   Full-text available via subscription Subscription journal
   ISSN (Print) 1755-5817
   Published by Elsevier Homepage  [3031 journals]
  • A novel approach for No Fault Found decision-making
    • Authors: Samir Khan; Michael Farnsworth; John Erkoyuncu
      Pages: 18 - 31
      Abstract: Publication date: May 2017
      Source:CIRP Journal of Manufacturing Science and Technology, Volume 17
      Author(s): Samir Khan, Michael Farnsworth, John Erkoyuncu
      Within aerospace and defence sectors, organisations are adding value to their core corporate offerings through services. These services tend to emphasise the potential to maintain future revenue streams and improved profitability and hence require the establishment of cost effective strategies that can manage uncertainties within value led services e.g. maintenance activities. In large organisations, decision-making is often supported by information processing and decision aiding systems; it is not always apparent whose decision affects the outcome the most. Often, accountability moves away from the designated organisation personnel in unforeseen ways, and depending on the decisions of individual decision makers, the structure of the organisation, or unregulated operating procedures may change. This can have far more effect on the overall system reliability – leading to inadequate troubleshooting, repeated down-time, reduced availability and increased burden on Through-life Engineering Services. This paper focuses on outlining current industrial attitudes regarding the No Fault Found (NFF) phenomena and identifies the drivers that influence the NFF decision-making process. It articulates the contents of tacit knowledge and addresses a knowledge gap by developing NFF management policies. The paper further classifies the NFF phenomenon into five key processes that must be controlled by using the developed policies. In addition to the theoretical developments, a Petri net model is also outlined and discussed based on the captured information regarding NFF decision-making in organisations. Since NFF decision-making is influenced by several factors, Petri nets are sought as a powerful tool to realise a meta-model capability to understand the complexity of situations. Its potential managerial implications can help describe decision problems under conditions of uncertainty. Finally, the conclusions indicate that engineering processes, which allow decision-making at various maintenance echelons, can often obfuscate problems that then require a systems approach to illustrate the impact of the issue.

      PubDate: 2017-05-13T11:33:42Z
      DOI: 10.1016/j.cirpj.2016.05.011
      Issue No: Vol. 17 (2017)
       
  • Mitigating change in the goals and context of capital assets: Design of
           the Lifetime Impact Identification Analysis
    • Authors: R.J. (Richard) Ruitenburg; A.J.J. (Jan) Braaksma
      Pages: 50 - 59
      Abstract: Publication date: May 2017
      Source:CIRP Journal of Manufacturing Science and Technology, Volume 17
      Author(s): R.J. (Richard) Ruitenburg, A.J.J. (Jan) Braaksma
      Physical assets are essential in manufacturing, and typically have lifetimes of several decades. Over such a period, many changes in goals and context may occur. Such changes should be dealt with to prevent a premature end to the asset's useful life. However, current maintenance methodologies focus mainly on the short term and on operation in a stable context. Based on a case study of Asset Management practices and the literature, we developed the Lifetime Impact Identification Analysis (LIIA) method. The method uses Technical, Economic, Compliance and Commercial perspectives to identify long-term challenges and opportunities for the asset.

      PubDate: 2017-05-13T11:33:42Z
      DOI: 10.1016/j.cirpj.2016.05.008
      Issue No: Vol. 17 (2017)
       
  • The detection of wind turbine shaft misalignment using temperature
           monitoring
    • Authors: Oliver Tonks; Qing Wang
      Pages: 71 - 79
      Abstract: Publication date: May 2017
      Source:CIRP Journal of Manufacturing Science and Technology, Volume 17
      Author(s): Oliver Tonks, Qing Wang
      Temperature is a parameter increasingly monitored in wind turbine systems. This paper details a potential temperature monitoring technique for use on shaft couplings. Such condition monitoring methods aid fault detection in other areas of wind turbines. However, application to shaft couplings has not previously been widely researched. A novel temperature measurement technique is outlined, using an infra-red thermometer which can be applied to online condition monitoring. The method was validated and investigated through real time shaft alignment tests. Different modes of misalignment including offset and angular were investigated. This allowed analysis of the relationship between a change in shaft alignment and a change in temperature. The rate of change was found to be a factor of condition through exploring changes in ambient and operating temperatures. The test rig allowed quantification on a small scale and potential causes and effects of temperature changes are discussed.

      PubDate: 2017-05-13T11:33:42Z
      DOI: 10.1016/j.cirpj.2016.05.001
      Issue No: Vol. 17 (2017)
       
  • Reference architecture to integrate heterogeneous manufacturing systems
           for the digital thread
    • Authors: Moneer Helu; Thomas Hedberg; Allison Barnard Feeney
      Abstract: Publication date: Available online 22 May 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Moneer Helu, Thomas Hedberg, Allison Barnard Feeney
      The increasing growth of digital technologies in manufacturing has provided industry with opportunities to improve its productivity and operations. One such opportunity is the digital thread, which links product lifecycle systems so that shared data may be used to improve design and manufacturing processes. The development of the digital thread has been challenged by the inherent difficulty of aggregating and applying context to data from heterogeneous systems across the product lifecycle. This paper presents a reference four-tiered architecture designed to manage the data generated by manufacturing systems for the digital thread. The architecture provides segregated access to internal and external clients, which protects intellectual property and other sensitive information, and enables the fusion of manufacturing and other product lifecycle data. We have implemented the architecture with a contract manufacturer and used it to generate knowledge and identify performance improvement opportunities that would otherwise be unobservable to a manufacturing decision maker.

      PubDate: 2017-05-23T12:42:21Z
      DOI: 10.1016/j.cirpj.2017.04.002
       
  • Designing a Cellular Manufacturing System featuring remanufacturing,
           recycling, and disposal options: A mathematical modeling approach
    • Authors: Tariq Aljuneidi; Akif A. Bulgak
      Abstract: Publication date: Available online 21 May 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Tariq Aljuneidi, Akif A. Bulgak
      While “sustainability” in the manufacturing sector is becoming a pivotal issue, one should consequently expect a growing research interest in design problems in “Sustainable Manufacturing Systems” (SMSs). When a product ceases to be of any further use to the customer in it is current condition, it is relinquished. Accordingly, there is a need for a product recovery options in a sustainable environment. Recycling and remanufacturing are the most two advanced product recovery options. An efficient recycling and remanufacturing network leads to an efficient design of Sustainable Manufacturing enterprise. This article presents a simultaneous investigation of Reconfigurable Cellular Manufacturing Systems and Hybrid Manufacturing-Remanufacturing Systems (HMRSs), and proposes an integrated approach in design optimization, analysis, and process planning aspects as an attempt to address to a large number of design issues for Sustainable Manufacturing Systems. The options of remanufacturing, recycling, and disposing are introduced. A mixed integer linear programming (MILP) model, which considers a classical cell formation problem in Cellular Manufacturing Systems (CMSs), bridged with a production planning problem, in Hybrid Manufacturing-Remanufacturing Systems, while addressing to “reconfiguration” issues for the CMS for different production periods, has been developed. A numerical example is presented to illustrate the proposed model.

      PubDate: 2017-05-23T12:42:21Z
      DOI: 10.1016/j.cirpj.2017.04.005
       
  • Single-crystal turbine blade tip repair by laser cladding and remelting
    • Authors: Stefan Kaierle; Ludger Overmeyer; Irene Alfred; Boris Rottwinkel; Jörg Hermsdorf; Volker Wesling; Nils Weidlich
      Abstract: Publication date: Available online 20 May 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Stefan Kaierle, Ludger Overmeyer, Irene Alfred, Boris Rottwinkel, Jörg Hermsdorf, Volker Wesling, Nils Weidlich
      High pressure single-crystal turbine blades made from nickel-based superalloys can withstand temperatures of up to 1100°C due to their superior creep and fatigue properties compared to polycrystalline material. However, these parts undergo erosion and cracking due to the extreme conditions they are subject to in the engines of commercial airplanes. Since there is no effective method of repairing these expensive parts, while maintaining the necessary microstructure, the need to develop and establish a reproducible process is of high importance. The process of Laser Material Deposition (LMD) has shown promising results in the building-up of single-crystal or directionally solidified structures, while laser remelting has been shown to extend this monocrystalline height. By combining the two processes, this study aimed to deposit and remelt single-crystal structures on substrates of the nickel-based superalloys CMSX-4 and turbine blade tips of PWA 1426. Experiments were carried out to establish laser parameters that resulted in a monocrystalline microstructure. This study showed that the combination of cladding and remelting can be used to deposit single-crystal structures and was able to establish a reproducible laser process to this effect. The results obtained indicate that the process is a promising candidate for the repair of turbine blade tips and warrants further research into the microstructure and thermomechanical properties of the repaired areas.

      PubDate: 2017-05-23T12:42:21Z
      DOI: 10.1016/j.cirpj.2017.04.001
       
  • Study on factors for pores and cladding shape in the deposition processes
           of Inconel 625 by the directed energy deposition (DED) method
    • Authors: Makoto Fujishima; Yohei Oda; Ryo Ashida; Kotaro Takezawa; Masaki Kondo
      Abstract: Publication date: Available online 16 May 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Makoto Fujishima, Yohei Oda, Ryo Ashida, Kotaro Takezawa, Masaki Kondo
      Additive manufacturing has been utilized recently for prototyping and mass production of parts especially in the aerospace and medical industries. Most of the parts are processed by the powder bed fusion (PBF) method. On the other hand, the directed energy deposition (DED) method is attractive due to the high deposition speed. However, various parameters must be set for deposition processes and how these parameter settings affect the quality of products in terms of pores and machine properties have not been clarified. This paper studies factors contributing to pore generation in the deposition processes of Inconel 625 by the DED method. First, tests for deposition processes in single layer and multiple layers were conducted under various depositing conditions by changing the laser output and the amount of powder. The test results have clarified depositing conditions where less pores are generated, differences in hardness by deposited position, and the factors for those differences.

      PubDate: 2017-05-18T12:11:47Z
      DOI: 10.1016/j.cirpj.2017.04.003
       
  • Study on the clamping force measurement and partial load regulation
           technology of injection molding machine
    • Authors: Binqi Rao; Hongwei Zhou; Huabin Ouyang; Yanjian Wan; Yuanhui Zhang; Jingyang Wu
      Abstract: Publication date: Available online 6 April 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Binqi Rao, Hongwei Zhou, Huabin Ouyang, Yanjian Wan, Yuanhui Zhang, Jingyang Wu
      Tie bars are the most important parts of injection molding machine, and the partial load of tie bars will directly affect the product quality. According to the measurement of strain and stress of the tie bars, the partial load rate of tie bars was calculated, and the influence of different types of thread shape and template (mold) parallelism on the partial load rate of tie bars were analyzed. Experiments reveal that the partial load rate is changed within 0.8%–3.8%, and the partial load rate gradually decreases with the increase of the clamping forces. Besides, different types of the thread of tie bars have little influence on the partial load rate, while the parallel degree of the template (mold) has great influence on the partial load rate of the tie bars. Further experiments show that the partial load rate is located in 0.79%–1.81% when the parallelism of template (mold) is good, and the partial load rate of tie bars between 8.59%–11.46% when the parallelism of template (mold) is poor. Finally, the partial load adjustment system of tie bars were also designed to make the force of tie bars more uniform and the partial load rate can be reduced by detecting the partial load rate of the tie bar and using the closed-loop control.

      PubDate: 2017-04-12T14:49:55Z
      DOI: 10.1016/j.cirpj.2017.03.001
       
  • Unlocking water efficiency improvements in manufacturing — From
           approach to tool support
    • Authors: D. Kurle; C. Herrmann; S. Thiede
      Abstract: Publication date: Available online 16 March 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): D. Kurle, C. Herrmann, S. Thiede
      Water represents an irreplaceable resource for manufacturing companies and yet many fail to exploit hidden potentials in optimizing their water system and its operations. This issue is often indicated by ad-hoc water efficiency efforts leading to only sub-optimal results. A prevailing lack of transparency and unattractive amortization times further complicate a continuous improvement process. This paper presents a structured approach with prototypical tools for systematically unlocking water efficiency improvements in manufacturing companies exemplified by a consistent case from the automotive industry. Seven consecutive work steps demonstrate the identification and visualization of water related hot-spots, the derivation of basic water improvement principles, the consideration of water reuse options as well as the assessment of resource interdependencies before closing with a holistic evaluation.

      PubDate: 2017-03-17T13:14:05Z
      DOI: 10.1016/j.cirpj.2017.02.004
       
  • Fundamental mechanisms in orthogonal cutting of medical grade cobalt
           chromium alloy (ASTM F75)
    • Authors: Eamonn Ahearne; Szymon Baron
      Abstract: Publication date: Available online 7 March 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Eamonn Ahearne, Szymon Baron
      Cobalt chromium alloys are sui generis materials for orthopaedic implants due mainly to unique properties of biocompatibility and wear resistance in the demanding in-vivo environment. Notwithstanding the importance of both defined and undefined edge cutting processes on form, finish and surface integrity of orthopaedic components, there has been minimal research reported in the public domain on the fundamental mechanisms in cutting of these alloys. Accordingly, this paper reports on initial research into cutting of the biomedical grade cobalt chrome molybdenum (Co-Cr-Mo) alloy, ASTM F75. Following a brief overview of physical and mechanical properties of this class of Co-Cr-Mo alloys, the results of a full factorial, orthogonal cutting experiment are presented. This involved measurement of force components (F t and F f ) as a function of the undeformed chip thickness (h) and cutting speed ( v c ) which were varied over ranges from 20 to 140μm and 20 to 60m/min respectively. The results demonstrated an expected linear increase in force components with h at speeds of 20 and 60m/min. However, at the intermediate speed of 40m/min, there was a transition between about 60 and 80μm indicating a discontinuous rather than continuous effect of speed. The results also enabled determination of the cutting force coefficients K tc , K te , K fc and K fe , as well as k i1,0.1 and m i0.1 of the Kienzle equations. These relations will enable macro-mechanic modelling of more complex cutting operations, such as milling, in the future.

      PubDate: 2017-03-09T21:25:11Z
      DOI: 10.1016/j.cirpj.2017.02.001
       
  • Effect of HM substrates’ cutting edge roundness manufactured by laser
           machining and micro-blasting on the coated tools’ cutting performance
    • Authors: K.-D. Bouzakis; P. Charalampous; T. Kotsanis; G. Skordaris; E. Bouzakis; B. Denkena; B. Breidenstein; J.C. Aurich; M. Zimmermann; T. Herrmann; R. M’saoubi
      Abstract: Publication date: Available online 7 March 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): K.-D. Bouzakis, P. Charalampous, T. Kotsanis, G. Skordaris, E. Bouzakis, B. Denkena, B. Breidenstein, J.C. Aurich, M. Zimmermann, T. Herrmann, R. M’saoubi
      The effective application of laser machining for manufacturing the cutting edge roundness of cemented carbide inserts was investigated in a cooperative work of the Scientific Technical Committee (STC) “Cutting” of the International Academy for Production Engineering (CIRP). Machining with diverse laser beam pulsing duration and feed velocity as well as micro blasting were employed prior to the coating deposition for shaping the cutting tool’s edges. The wear behaviour of the coated inserts was tested in milling TiAl6V4 and Inconel 718. Considering the inserts’ surface micro-structure and mechanical properties developed after the laser treatment, the coated tools’ cutting performance deterioration or improvement compared to untreated substrates was explained.

      PubDate: 2017-03-09T21:25:11Z
      DOI: 10.1016/j.cirpj.2017.02.003
       
  • Increasing efficiency of Ti-alloy machining by cryogenic cooling and using
           ethanol in MRF
    • Authors: G. Krishnamurthy; S. Bhowmick; W. Altenhof; A.T. Alpas
      Abstract: Publication date: Available online 6 March 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): G. Krishnamurthy, S. Bhowmick, W. Altenhof, A.T. Alpas
      Generation of high and localized cutting zone temperatures leading to dissolution wear hinders machining of titanium (Ti) alloys using uncoated carbide tools. In addition, the thermo-plastic instability exhibited by Ti alloys promotes serrated chip formation that causes fluctuations in the cutting forces leading to chatter and severe flank wear. This work considers two methods to mitigate the problems that occur during cutting of Ti-6Al-4V, namely, cryogenic machining and the use of ethanol blended metal removal fluids (MRF). Cryogenic machining decreased the cutting force and surface roughness compared to dry machining under the ambient conditions. The decrease in the fracture energy of Ti-6Al-4V (as measured by Charpy impact tests) and brittle type fracture led to formation of shorter chip segments during cryogenic machining. Alternatively the use of ethanol blended MRF further reduced the cutting force by over 65% compared to dry machining. Ethanol blended MRF facilitated adsorption of OH groups from ethanol by the carbon at the surfaces of the cutting tool resulting in negligible adhesion to the cutting tool.

      PubDate: 2017-03-09T21:25:11Z
      DOI: 10.1016/j.cirpj.2017.01.001
       
  • The impact of contact zone flow rate and bulk cooling on the cooling
           efficiency in grinding applying different nozzle designs and grinding
           wheel textures
    • Authors: Kirsch
      Abstract: Publication date: Available online 6 March 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): B. Kirsch
      In this paper, investigations on different fluid supply methods in grinding are presented. Different nozzle designs as well as different grinding wheel types were investigated. Besides a standard superabrasive grinding wheel with continuous layer, a slotted grinding wheel was investigated. This wheel provides small pockets positioned around its perimeter. Through these pockets, the amount of fluid transported into the contact zone was increased. The different setups enabled to identify the influences of contact zone flow rate and bulk cooling on the cooling efficiency in grinding. The cooling efficiency was evaluated by means of the resulting alteration of surface integrity. The results show that a sufficiently high contact zone flow rate prevails over a high bulk cooling of the workpiece.

      PubDate: 2017-03-09T21:25:11Z
       
  • Holistic criteria-based optimization of filament wound high pressure
           vessels
    • Authors: Lars Ulke-Winter; Lothar Kroll
      Abstract: Publication date: Available online 10 February 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Lars Ulke-Winter, Lothar Kroll
      For dimensioning of wound fiber reinforced high pressure vessels the design engineer has to consider various requirements. Since in addition to the strength requirements, in particular the manufacturing constraints must be taken into account. In order to support the design engineer in the complex dimensioning process of such high-pressure vessels a holistic design strategy was developed on the basis of an ant colony optimization algorithm. The aim was to do this winding-optimization without costly dedicated software and instead develop basic design criteria. For this it was necessary in both carry out a holistic comparative quality evaluation of different solutions as well as providing a customizable objective function.

      PubDate: 2017-02-11T20:21:37Z
      DOI: 10.1016/j.cirpj.2017.01.002
       
  • Assignment of weightage to machining characteristics to improve overall
           performance of machining using GTMA and utility concept
    • Authors: K. Venkata Rao; P.B.G.S.N. Murthy; K.P. Vidhu
      Abstract: Publication date: Available online 21 January 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): K. Venkata Rao, P.B.G.S.N. Murthy, K.P. Vidhu
      In an automated manufacturing system, performance of machining is an important characteristic that affects the production cost especially in machining processes like milling and boring. Boring is one of critical machining processes, and therefore, it is very difficult to determine overall performance of the process. In the present work, an attempt was made to maximize overall performance of the process in order to reduce reworking and production cost. Three different performance characteristics like surface roughness, tool wear and root mean square of workpiece vibration velocity are considered to determine overall performance for boring of AISI 1040 steel with carbide tool inserts. According to User's Preference Rating, weights for the three performance characteristics are calculated using graph theory and matrix approach (GTMA). Overall performance or utility value of the machining process is calculated using utility concept. A response surface methodology (RSM) is used to optimize the process parameters for maximization of performance of the process. Weights of surface roughness, tool wear and root mean square of workpiece vibration velocity are calculated as 0.489, 0.367 and 0.184 respectively. Optimum process parameters were found to be 0.4mm of nose radius, 170m/min of cutting speed and 0.1358mm/rev of feed rate.

      PubDate: 2017-01-22T19:34:40Z
      DOI: 10.1016/j.cirpj.2016.12.001
       
  • Influence of the tool profile on the wear behaviour in gear hobbing
    • Authors: Bernhard Karpuschewski; Martin Beutner; Max Köchig; Christian Härtling
      Abstract: Publication date: Available online 3 January 2017
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Bernhard Karpuschewski, Martin Beutner, Max Köchig, Christian Härtling
      Being the dominating green manufacturing technique to create external gears gear hobbing is of major industrial importance. The technology is characterized by a simultaneous superposition of kinematics and tool profile. Even though these tool profiles are standardized, in industries they are regularly being altered to fit the gear designer's demands regarding strength and contact ratio. Cutting gears with these modified and partly extreme tool profiles some geometries show critical wear behaviour. Despite existing experience-based knowledge, no systematic knowledge base is available. Therefore, this paper summarizes geometrical influences of the tool profile on the wear mechanisms. A variety of different tool profiles and gear geometries were tested within the fly cutting analogy test. The effects were also studied by means of FEM-simulation and interpenetration simulation. Finally, the wear phenomena were matched with load parameters.

      PubDate: 2017-01-06T19:16:15Z
      DOI: 10.1016/j.cirpj.2016.11.002
       
  • Special Issue CIRP Journal of Manufacturing Science and Technology Ramp-up
           Management
    • Abstract: Publication date: Available online 23 December 2016
      Source:CIRP Journal of Manufacturing Science and Technology


      PubDate: 2016-12-27T08:47:22Z
       
  • Effect of PVD film's residual stresses on their mechanical properties,
           brittleness, adhesion and cutting performance of coated tools
    • Authors: G. Skordaris; K.D. Bouzakis; T. Kotsanis; P. Charalampous; E. Bouzakis; B. Breidenstein; B. Bergmann; B. Denkena
      Abstract: Publication date: Available online 21 December 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): G. Skordaris, K.D. Bouzakis, T. Kotsanis, P. Charalampous, E. Bouzakis, B. Breidenstein, B. Bergmann, B. Denkena
      Coated cemented carbide inserts with diverse compressive residual stresses in the film structure were manufactured applying different substrate bias voltages. Moreover, a portion of the coated specimens was annealed for eliminating compressive residual stresses. Residual stress measurements, nanoindentations, nano- and inclined-impact tests, as well as FEM-supported calculations were performed for assessing the coating's mechanical properties, cohesion, brittleness and adhesion. Furthermore, the cutting performance of the coated inserts was investigated in turning AISI 1045. According to the attained results, coating residual stresses affect significantly the film properties and wear behavior. Hereupon, a certain residual stress level can be considered as optimum.

      PubDate: 2016-12-27T08:47:22Z
      DOI: 10.1016/j.cirpj.2016.11.003
       
  • High-performance coatings for cutting tools
    • Authors: Kirsten Bobzin
      Abstract: Publication date: Available online 20 December 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Kirsten Bobzin
      Cutting tools with hard coatings have been successfully employed in the industry for almost 50 years. Nowadays, 85% of all cemented carbide tools are coated. There is an increasing demand for ever more efficient tools driven by the use of new workpiece materials as well as the demand for increased productivity of manufacturing processes. A historical review of the development of CVD and PVD processes shows a continuous improvement of successful coating materials through adjustments of the chemical composition and the coating architecture. Especially nanostructured PVD coatings managed to establish themselves on the market surprisingly quickly. Cutting tools are an excellent example for how the development of coated products is traced methodologically by means of a holistic view over the application. The demand for innovative tooling concepts will continue to exist in the future, as will the high potential for this aim to be achieved through high-performance coatings on improved cutting materials with adjusted tool design.

      PubDate: 2016-12-27T08:47:22Z
      DOI: 10.1016/j.cirpj.2016.11.004
       
  • Optimization of surface roughness in broaching
    • Authors: D. Fabre; C. Bonnet; J. Rech; T. Mabrouki
      Abstract: Publication date: Available online 16 December 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): D. Fabre, C. Bonnet, J. Rech, T. Mabrouki
      The broaching process is used to generate high quality surfaces in very short times. In order to improve the understanding of the evolution of surface quality in broaching, a sensitivity study of the influence on the surface roughness of several broaching parameters dealing with the tool design, the cutting conditions or the workpiece material was performed. Forces and chip formation have also been analyzed so as to highlight the surface roughness generation. This paper shows how the process parameters (such as cutting speed or lubrication), tool design (rise per tooth, tooth angles, substrate material), and workpiece material affects the surface roughness.

      PubDate: 2016-12-19T09:49:52Z
      DOI: 10.1016/j.cirpj.2016.10.006
       
  • Manufacturing systems: Using agents with local intelligence to maximize
           factory profit
    • Authors: Miri Weiss-Cohen; Michael Mitnovizky; Moshe Shpitalni
      Abstract: Publication date: Available online 16 December 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Miri Weiss-Cohen, Michael Mitnovizky, Moshe Shpitalni
      Many of the problems of manufacturing systems, including scheduling, are NP-hard and therefore cannot be solved and optimized in real time as required in the real world. This paper investigates the possibility of controlling manufacturing systems while maximizing the enterprise profit in a stochastic and dynamically varying environment. In this research, we developed a multi-agents system that operates on the factory floor level and directly controls the manufacturing system. The paper examines the proposed multi-agents system, demonstrates its feasibility by simulation under various experimental settings, presents important findings and excellent results, and draws conclusions.

      PubDate: 2016-12-19T09:49:52Z
      DOI: 10.1016/j.cirpj.2016.11.005
       
  • Conducting a metering assessment to identify submetering needs at a
           manufacturing facility
    • Authors: Prakash Rao; Michael R. Muller; Garan Gunn
      Abstract: Publication date: Available online 15 November 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Prakash Rao, Michael R. Muller, Garan Gunn
      Submetering the energy consumption of processes, systems, or equipment at a manufacturing facility can provide insight into the energy efficiency and productivity of its operations. With the growth of the “Big Data” market and increasing number of submetering options, collecting data is not a challenge; collecting data that can result in actionable information leading to energy savings is a challenge. Further, as manufacturing is in the midst of the smart manufacturing and industrial analytics revolution, developing optimal submetering strategies is of increasing importance, especially if submeters are being installed as a retrofit to an existing facility/process. In particular, small to midsized manufacturing (SMM) facilities will require technical assistance to fully avail of submeter data and join the smart manufacturing revolution. This paper presents a metering assessment as a method to identify the optimal use of submeters and applications of the collected data at a manufacturing facility. The metering assessment consists of temporarily submetering energy uses to identify future metering needs. The metering assessment involves gathering data on an energy use(s) over a finite length of time, conducting analysis of the data to better understand energy consumption characteristics of the energy uses, and developing an optimal permanent submetering strategy. Through the metering assessment, a facility can better identify uses for submetered data before installing permanent submeters, thereby limiting the collection of extraneous data. Further, the facility can avail of smart manufacturing opportunities by installing submeters as a retrofit and using the collected energy data to inform operational decisions in real-time. The benefits of conducting a metering assessment are presented using an example from a SMM metal tube manufacturing facility. The results from a metering assessment conducted at the facility resolved outstanding operational issues while also identifying where permanent submetering could improve productivity. Through applying the metering assessment at an SMM facility and identifying uses of submeter data, this paper illustrates the type of technical assistance required to bring the benefits of smart manufacturing and industrial analytics to SMM facilities.

      PubDate: 2016-11-20T23:34:07Z
      DOI: 10.1016/j.cirpj.2016.10.005
       
  • Innovative high-speed femtosecond laser nano-patterning for improved
           adhesive bonding of Ti6Al4V titanium alloy
    • Authors: Giovanna Rotella; Leonardo Orazi Marco Alfano Sebastiano Candamano Iaroslav Gnilitskyi
      Abstract: Publication date: Available online 3 November 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Giovanna Rotella, Leonardo Orazi, Marco Alfano, Sebastiano Candamano, Iaroslav Gnilitskyi
      In this work the effect of femtosecond Yb fiber laser irradiation on Ti6Al4V titanium alloy is assessed. An extensive experimental campaign is carried out to survey surface properties through the use of SEM, AFM, EDS mapping and contact angle measurements. It is shown that the generation of uniform nanoscale laser induced periodic surface structures (LIPSS) allows to tailor surface properties and improves adhesive bonding with epoxy resin. The potential of the technique to improve the durability of the joints against accelerated aging is also evaluated.

      PubDate: 2016-11-06T23:24:12Z
       
  • Influence of fibre orientation, tool geometry and process parameters on
           surface quality in milling of CFRP
    • Authors: Robert Voss; Lukas Seeholzer Friedrich Kuster Konrad Wegener
      Abstract: Publication date: Available online 2 November 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Robert Voss, Lukas Seeholzer, Friedrich Kuster, Konrad Wegener
      Machining of highly abrasive carbon fibre reinforced polymer (CFRP) in the aerospace industry requires processes with excellent machining quality, sufficient tool lifetime and short cycle times. To reach these goals a detailed understanding of the physics of cutting and chip formation based on the tool geometry is necessary. This paper presents a fundamental study in milling of unidirectional CFRP focussing on variable process parameters, tool geometries and fibre orientations. A single-edged tool with cemented carbide inserts of variable macro geometry is utilised. The experiments are evaluated by 3D microscopy of the milled edges, detailed tool wear analyses and interpretation of cutting forces. The key conclusions from the experimental results are drawn to reach a better machining quality and increased tool lifetime. The delamination of top layer fibres from the ply below up to a certain distance from the milled edge, which depends on the forces at fibre cutting angle ϕ =90°, has been identified as main quality issue. Force and tool wear models based on the measurement data are presented.

      PubDate: 2016-11-06T23:24:12Z
       
  • 3D finite element modelling of surface modification in dry and cryogenic
           machining of EBM Ti6Al4V alloy
    • Authors: Umbrello Bordin; Imbrogno Bruschi
      Abstract: Publication date: Available online 2 November 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): D. Umbrello, A. Bordin, S. Imbrogno, S. Bruschi
      The development of reliable numerical tools for predicting the machined surface integrity has become of primary importance nowadays. This paper introduces a novel customized FE model to predict microstructural changes generated during turning of the Electron Beam Melted (EBM) Ti6Al4V alloy under dry cutting and cryogenic cooling. The material peculiar fine acicular microstructure and the nano-hardness variation are modelled and implemented into a FE model by means of a User Subroutine. The developed FE model permits to predict the microstructure (alpha lamellae thickness), the plastic deformation (alpha lamellae deformation) and nano-hardness variations induced by machining operation under dry and cryogenic conditions.

      PubDate: 2016-11-06T23:24:12Z
       
  • Design of sustainable product service systems and their value creation
           chains
    • Authors: Xavier Boucher; Daniel Brissaud Yoshiki Shimomura
      Abstract: Publication date: November 2016
      Source:CIRP Journal of Manufacturing Science and Technology, Volume 15
      Author(s): Xavier Boucher, Daniel Brissaud, Yoshiki Shimomura


      PubDate: 2016-11-06T23:24:12Z
       
  • Engineering models to support product–service system integrated
           design
    • Authors: Lucile Trevisan; Daniel Brissaud
      Abstract: Publication date: November 2016
      Source:CIRP Journal of Manufacturing Science and Technology, Volume 15
      Author(s): Lucile Trevisan, Daniel Brissaud
      Product- and service-design methods traditionally focus on different aspects and use specific models which are difficult to integrate. This paper proposes a PSS “multi-views” modelling framework for supporting integrated PSS design. By coupling models currently used by product and service engineers, the proposed framework should provide a communication support for these actors during PSS design. The “multi-views” perspective should allow them to detail the design of the PSS components until the most technical phases while it also should ensure integration of these components through a shared perspective on the system modelling.

      PubDate: 2016-11-06T23:24:12Z
       
  • Interview study: How can Product-Service Systems increase customer
           acceptance of innovations?
    • Authors: Danilo Marcello; Schmidt Felix Braun Sebastian Alexander Schenkl Markus
      Abstract: Publication date: November 2016
      Source:CIRP Journal of Manufacturing Science and Technology, Volume 15
      Author(s): Danilo Marcello Schmidt, Felix Braun, Sebastian Alexander Schenkl, Markus Mörtl
      Since customer acceptance is responsible for the success of innovative products, this study investigates how Product-Service Systems (PSS) influence customer acceptance of innovations. Using the example of electric vehicles (EV) in carpools, interviews were held with four PSS providers and four PSS customers from Germany and Sweden. The results of the interviews were then analyzed according to Rogers’ theory of the diffusion of innovations: Providing innovative products as PSS can increase customer acceptance by reducing performance gaps that exist between innovative and existing technologies. The main gaps found with EVs are their limited range and high purchase costs. Customers perceive those gaps as less considerable if they rent EVs in a carpool.
      Graphical abstract image

      PubDate: 2016-11-06T23:24:12Z
       
  • Cost, sustainability and surface roughness quality – A comprehensive
           analysis of products made with personal 3D printers
    • Authors: Yalun Li; Barbara S. Linke; Henning Voet; Björn Falk; Robert Schmitt; Myron Lam
      Abstract: Publication date: Available online 27 October 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Yalun Li, Barbara S. Linke, Henning Voet, Björn Falk, Robert Schmitt, Myron Lam
      Additive manufacturing (AM), generally also referred to as 3D printing, has gone through vast development in the past 20 years which still continues. In particular, the market segment of personal 3D printers has achieved an average annually growth rate of approximately 170% from 2008 to 2013. The purpose of this research is to identify the best AM process applied in personal printers in terms of cost, sustainability, surface roughness, and human perception, as these aspects are essential for this new thriving market segment's future. In addition, the research investigates which objective roughness parameters are suitable for qualifying subjective perceptions. The primary AM processes, Fused Deposition Modeling, Stereolithography and Polyjet printing are in the focus of this research. Manufacturing costs as well as environmental impact are calculated, five independent roughness parameters (Ra, Rz, Rq, Rsk, and Rku) are measured and the subjective perception of samples is assessed through sensorial analysis. In conclusion, samples manufactured with Polyjet printing have the best subjective quality, but the highest costs and environmental impact. Biplots of roughness parameters versus sensorial ranking indicates a significant correlation between maximum peak-to-valley height Rz and tactile and visual perception, while the kurtosis of the topography height distribution Rku correlated best to the hedonic rank.

      PubDate: 2016-10-30T22:44:33Z
      DOI: 10.1016/j.cirpj.2016.10.001
       
  • Process monitoring of wire drawing using vibration sensoring
    • Authors: Lars Pejryd; Joakim Larsson; Mikael Olsson
      Abstract: Publication date: Available online 19 October 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Lars Pejryd, Joakim Larsson, Mikael Olsson
      Automating the detection of processing conditions that may lead to defects in the wire during the wire drawing process is of high interest to the industry. Current practise is based primarily on operator experience. Increasing demands on product quality and process robustness emphasises the need for development of robust in-process detection methods. This work is focusing on investigating the potential of using vibration monitoring to detect process deficiencies or variations that may lead to defects in the product. Wire drawing of a carbon steel in different lubricating situations was used to investigate vibration signal response together with force measurements and surface investigation of the wire product. The results show that vibration measurement is capable of detecting loss of lubrication that leads to poor surface quality of the wire.

      PubDate: 2016-10-24T03:12:45Z
      DOI: 10.1016/j.cirpj.2016.09.006
       
  • Forming of carbon fiber reinforced thermoplastic composite tubes –
           Experimental and numerical approaches
    • Authors: Bernhard Maron; Christian Garthaus; Andreas Hornig; Florian Lenz; Michael Hübner; Maik Gude
      Abstract: Publication date: Available online 7 October 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Bernhard Maron, Christian Garthaus, Andreas Hornig, Florian Lenz, Michael Hübner, Maik Gude
      Continuous-reinforced thermoplastic composites are of growing importance for series production of lightweight components in manifold industrial areas. Novel manufacturing technologies allow the production of hollow semi-finished products that are post formed to enhance functionality. To maximize efficiency in the development process of such components it is necessary to evaluate the forming processes numerically using Finite Elements (FE)-methods. The aim is to perform feasibility studies at an early stage, reduce development time by virtual process optimization and to generate a detailed understanding of the post formed fiber architecture for further structural-mechanical analysis.

      PubDate: 2016-10-10T00:11:33Z
      DOI: 10.1016/j.cirpj.2016.09.004
       
  • Through-life engineering services of wind turbines
    • Authors: Joel Igba; Kazem Alemzadeh; Christopher Durugbo; Egill Thor Eiriksson
      Abstract: Publication date: Available online 7 October 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Joel Igba, Kazem Alemzadeh, Christopher Durugbo, Egill Thor Eiriksson
      The past decade has seen exponential yearly growth in installed capacity wind energy power generation. As a result, wind farm (WF) projects have evolved from small scale isolated installations into complex utility scale power generation systems comprising of arrays of large wind turbines (WTs), which are designed to operate in harsh environments. However, this has increased the need for through-life engineering service (TES) for WTs especially in offshore applications, where the operations and maintenance (O&M) becomes more complicated as a result of the harsh marine weather and environmental conditions. In this paper, a generic methodology to benchmark TES in industries is presented and used to assess TES in the wind industry. This was done by identifying the current state-of-the-art in methods and applications, requirements and needs, challenges, and opportunities of TES in the wind sector. Furthermore an illustrative case study on WT gearbox through-life support is presented demonstrating how some of the core aspects, such as remote condition monitoring, can be used to aid the in-service support of wind turbine gearboxes.

      PubDate: 2016-10-10T00:11:33Z
      DOI: 10.1016/j.cirpj.2016.08.003
       
  • Feed-forward observer-based intermittent fault detection
    • Authors: T. Sedighi; P.D. Foote; P. Sydor
      Abstract: Publication date: Available online 17 September 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): T. Sedighi, P.D. Foote, P. Sydor
      This paper provided an approach to design feed-forward observer for nonlinear systems with Lipchitz nonlinearity and bounded unknown inputs (disturbances/uncertainties) to ensure the sensitivity against intermittent faults. The proposed observer design guarantees the system error stability. Some variables and scalars are also introduced to design observer's parameters, which bring more degrees of flexibility available to the designer. The designed observer is used to propose a precision fault detection scheme including adaptive threshold design to detect intermittent faults. The efficiency of the considered approach is examined by the intermittent failure case in the suspension system of a vehicle. Simulation results show that the accurate state estimation and fault detection are achieved successfully.

      PubDate: 2016-09-21T12:30:07Z
      DOI: 10.1016/j.cirpj.2016.08.004
       
  • Multiscale measurement of air foils with data fusion of three optical
           inspection systems
    • Authors: Jochen Schlobohm; Yinan Li; Andreas Pösch; Markus Kästner; Eduard Reithmeier
      Abstract: Publication date: Available online 14 September 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Jochen Schlobohm, Yinan Li, Andreas Pösch, Markus Kästner, Eduard Reithmeier
      Measuring the geometry of machine parts with complex geometries creates new challenges towards measurement systems. Due to cost, fast inspection is nevertheless desirable. Additionally the characterization of a parts health and functionality requires geometric information in different scales. We have developed a set of optical measurement systems which together meet those requirements: A borescopic fringe projection system, a macroscopic fringe projection system using newly developed algorithms for fast inspection of turbine blades and a low coherence Michelson interferometer (LCI). The first can detect geometric variances in hard to reach areas, e.g. inside machines or in between parts with highly complex geometries like blade integrated discs (blisks). Using fully adaptable fringe patters, the second system can locate geometric variances with a single fringe pattern. These patterns lead to high sensitivity and high measurement speed. Afterwards the LCI further inspects the micro structure of defects and characterizes the surface structure of the air foil. The presented algorithms provide fast 3D reconstruction with a nanometer resolution and, compared to other systems, a large measurement range. Together, these three inspection systems are capable to detect and quantify defects or geometric variances of industrial parts in different scales. This information improves the prediction of the reliability of a part and helps extending its lifetime to reduce the maintenance costs of machines. As an example a turbine blade was measured with all three systems and the results are visualized in one dataset. Means to merge the measurements are discussed.
      Graphical abstract image Highlights

      PubDate: 2016-09-21T12:30:07Z
      DOI: 10.1016/j.cirpj.2016.07.006
       
  • Outlining an overall Functional Product lifecycle – Combining and
           coordinating its economic and technical perspectives
    • Authors: John Lindström; Magnus Karlberg
      Abstract: Publication date: Available online 9 September 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): John Lindström, Magnus Karlberg
      Currently, industry is showing increasing interest in performance-based business models. Functional Products is one such business model, where the provider offers a function to customers at an agreed-upon level of availability, productivity or efficiency, etc. A Functional Product comprises the following four main constituents: hardware, software, service support system and management of operation, which together deliver value to customers on a long-term basis. This paper, based on empirical data, provides an outline and starts the verification of a proposed overall Functional Product lifecycle combining and coordinating its economic- and technical perspectives. The perspectives are combined and the key aspects of the necessary coordination between and within the perspectives, i.e., sustainable win-win situations and coordination of sub-lifecycles for the economic perspective, and the need for coordination between the Functional Products’ technical perspective's four sub-lifecycles (hardware, software, service-support system and management of operation), are elaborated and discussed. Further, addition of new functionality, contract management, and long-term management of operation are discussed in the light of managing fleets/individual customers, assets and availability. The proposed overall Functional Product lifecycle is further analyzed from a number of views and aspects.

      PubDate: 2016-09-13T07:35:32Z
      DOI: 10.1016/j.cirpj.2016.08.005
       
  • Technology lifecycle-oriented search for production technologies
    • Authors: Josef Greitemann; Michael A. Zaggl; Martin Hehl; Christina Raasch; Gunther Reinhart
      Abstract: Publication date: Available online 7 September 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Josef Greitemann, Michael A. Zaggl, Martin Hehl, Christina Raasch, Gunther Reinhart
      The adoption of production technologies is a major challenge for manufacturing companies. Despite the long term impact of decisions on production technologies, companies are often unaware how to search for alternative production technologies. We developed a method that focusses on the systematic search for production technologies for fulfilling future manufacturing tasks. The method consists of three steps including the selection of information sources, information search and information evaluation. It takes advantages of the concept of technology lifecycles. The method provides a useful tool for producing companies and has been applied exemplary in the automotive industry.

      PubDate: 2016-09-08T06:54:30Z
      DOI: 10.1016/j.cirpj.2016.08.001
       
  • Flow visualization and simulation of the filling process during injection
           molding
    • Authors: Patrick Guerrier; Guido Tosello; Jesper Henri Hattel
      Abstract: Publication date: Available online 20 August 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Patrick Guerrier, Guido Tosello, Jesper Henri Hattel
      To directly compare experimental moldings from an injection molding machine with simulations, a special mold has been produced with a glass window. The injection plane is perpendicular to the opening and closing planes, in order for the 55mm thick glass window to be easily visible from the side. A high speed camera recording 500 frames per second was employed, and the mold had three thermocouples and two pressure sensors installed. The molded part is a 2mm thick plate with a 0.5mm thin section, which creates a characteristic V-shaped flow pattern. Two different materials were employed, namely ABS and a high viscosity PC. Simulations were performed using the actual machine data as input, including the injection screw acceleration. Furthermore, the nozzle and barrel geometries were included as a hot runner to capture the effect of compressibility of the material in front of the screw. These two had significant effects on the filling times and injection pressure calculated by the simulations. Other effects investigated included transient thermal management of the mold, pressure dependent viscosity and wall slip, but their effect were not remarkably large in this work. The obtained simulation results showed deviations within 10–30ms (relative deviation in the order of 5–10%) for the ABS and slightly more for the high viscosity PC in the range of 100–500ms (relative deviation in the order of 20–30%) on timings between different sections during filling.

      PubDate: 2016-08-24T03:04:19Z
      DOI: 10.1016/j.cirpj.2016.08.002
       
  • Evaluation of the Lifetime Impact Identification Analysis: Two tests in a
           changeable context
    • Authors: R.J. (Richard) Ruitenburg; A.J.J. (Jan) Braaksma
      Abstract: Publication date: Available online 20 August 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): R.J. (Richard) Ruitenburg, A.J.J. (Jan) Braaksma
      Asset Life Cycle Management aims to maximize the value realized from physical assets over their complete lifetime. Over the years, the operation and maintenance of the assets must continually be adapted to changes in goals and context. In an earlier publication, we proposed the Lifetime Impact Identification Analysis to identify such changes. This paper tests this method through an application at two different companies. The method proved to result in a shared and integral overview of long-term challenges and opportunities for the asset, based on experts discussing the asset's future from a technical, economic, compliance, commercial and organizational perspective.

      PubDate: 2016-08-24T03:04:19Z
      DOI: 10.1016/j.cirpj.2016.05.009
       
  • Characterisation and full-scale production testing of multifunctional
           surfaces for deep drawing applications
    • Authors: A. Godi; J. Grønbæk; L. De Chiffre
      Abstract: Publication date: Available online 11 August 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): A. Godi, J. Grønbæk, L. De Chiffre
      Full-scale deep drawing tests using tools featuring multifunctional surfaces are carried out in a production environment. Multifunctional tools display regularly spaced, transversal grooves for lubricant retention obtained by hard-turning, separated by smooth bearing plateaus realized by robot assisted polishing. Advanced methods are employed to characterise the tools’ surface topographies, detecting the surface features and analysing them separately according to their specific function. Four different multifunctional dies as well as two un-textured references are selected for testing. The tests are run using a non-hazardous, environmentally friendly lubricant, and the forming forces are constantly recorded. Multifunctional dies exhibit very good performances, with no galling occurrence and punch forces generally lower than the two references.

      PubDate: 2016-08-13T22:55:10Z
      DOI: 10.1016/j.cirpj.2016.07.001
       
  • Tool wear and surface quality assessment of CFRP trimming using fractal
           analyses of the cutting force signals
    • Authors: X. Rimpault; J.-F. Chatelain; J.E. Klemberg-Sapieha; M. Balazinski
      Abstract: Publication date: Available online 3 August 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): X. Rimpault, J.-F. Chatelain, J.E. Klemberg-Sapieha, M. Balazinski
      The surface quality of machined carbon fibre reinforced plastics (CFRP) differs depending on cutting conditions, e.g. cutting parameters and tool wear. Fractal analyses were performed on the cutting force signals, acquired during the trimming of CFRP, to describe the signal complexities variations. Fractal parameters, such as dimension and topothesy, were used to describe the signal irregularity and complexity. Statistical parameters, e.g. average and amplitude, and fractal parameters were compared related to the tool wear and to the surface quality. The fractal results from cutting force signals can estimate the tool wear and the surface quality.

      PubDate: 2016-08-13T22:55:10Z
      DOI: 10.1016/j.cirpj.2016.06.003
       
  • An experimental investigation on the machining characteristics of Nimonic
           75 using uncoated and TiAlN coated tungsten carbide micro-end mills
    • Authors: Niharika Swain; Vijay Venkatesh; Praveen Kumar; G. Srinivas; S. Ravishankar; Harish C. Barshilia
      Abstract: Publication date: Available online 2 August 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Niharika Swain, Vijay Venkatesh, Praveen Kumar, G. Srinivas, S. Ravishankar, Harish C. Barshilia
      We report the machining characteristics and machinability of a nickel based superalloy in this study. A micro-milling operation is loaded on Nimonic 75 using uncoated and TiAlN coated tungsten carbide micro-end mills. A full factorial design of experiments was devised to optimize the machining conditions to reduce the flank wear on the tool surface. The optimized machining conditions for uncoated micro-tools were found to be a cutting speed (v c) of 13m/min and a feed rate (f z) of 6mm/min. Following this, the tools were coated with TiAlN using a semi-industrial four-cathode reactive pulsed direct current unbalanced magnetron sputtering system. Further experiments were then performed using these optimized machining conditions using both uncoated and TiAlN coated micro-tools in order to ascertain the tool wear and surface integrity. The change in geometry of the machined slot was estimated based on the variation in tool radius of the micro-end mill with progression of the operation. A direct comparison was made between the results observed using both uncoated and TiAlN coated tungsten carbide to illustrate the effect of the nanocomposite TiAlN coating. It was seen that TiAlN coated micro-tools exhibited a superior performance as compared to the uncoated ones with respect to tool life and micro-burr formation.

      PubDate: 2016-08-13T22:55:10Z
      DOI: 10.1016/j.cirpj.2016.07.005
       
  • Mechanistic cutting force modelling for micro-drilling of CFRP composite
           laminates
    • Authors: Ravi Shankar Anand; Karali Patra
      Abstract: Publication date: Available online 1 August 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Ravi Shankar Anand, Karali Patra
      This article presents a mechanistic model to predict thrust force and torque in micro-drilling of carbon fibre-reinforced plastic (CFRP) composite laminates. Tool edge radius effects are considered in this model to predict cutting forces even at low feed values which are comparable to the tool edge radius. As greater fluctuation of cutting force is very common in micro scale machining of composite material due to its layered structure, fabric plies and epoxy resin matrix layers are considered in this model as separate phases rather than as equivalent homogeneous material. Separate sets of cutting coefficients for each phase are determined from the experimental results. The fluctuations of average thrust and torque in alternate layers of fabric plies and epoxy resin matrix are predicted and validated with new experimental results of micro-drilling with a 0.5mm diameter tungsten carbide tool. In both layers, the model predictions are close to the experimental results. Though the prediction errors in epoxy resin matrix are comparatively higher than the errors in fabric plies, these are reasonable considering the complex sub surface damage mechanism due to epoxy resin matrix failure and interfacial debonding.

      PubDate: 2016-08-13T22:55:10Z
      DOI: 10.1016/j.cirpj.2016.07.002
       
  • Formability in single point incremental forming: A comparative analysis of
           the state of the art
    • Authors: Tegan McAnulty; Jack Jeswiet; Matthew Doolan
      Abstract: Publication date: Available online 25 July 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Tegan McAnulty, Jack Jeswiet, Matthew Doolan
      Single point incremental forming (SPIF) has higher formability limits than other sheet metal forming processes including stamping, and is therefore a desirable method of forming sheet metal components. To take advantage of this high formability it is necessary to understand how to maximise the limits through manipulation of parameters, increasing the likelihood of component success. In this paper, a systematic quantitative literature review was undertaken analysing experiments and results from 35 papers that studied the effect of process parameters on formability in SPIF. Collective results are presented regarding material thickness, tool diameter, tool shape and type, step down, feed rate, spindle speed and rotation direction, and some parameter interactions. The analysis provides evidence to support the hypothesis of an ideal operating range for each parameter and interdependency of parameters. A lack of focus in the literature on parameter interactions was found. A framework for important experimental parameters is proposed based on the review. Statement of originality Quantitative analysis of research presented in the literature about parameter effects on formability in SPIF.

      PubDate: 2016-08-13T22:55:10Z
      DOI: 10.1016/j.cirpj.2016.07.003
       
  • Development and evaluation of a knowledge-based decision-making approach
           for designing changeable manufacturing systems
    • Authors: E. Francalanza; J. Borg; C. Constantinescu
      Abstract: Publication date: Available online 13 July 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): E. Francalanza, J. Borg, C. Constantinescu
      Due to highly competitive markets, constantly shifting consumer requirements, and technological advances, product families are continuously evolving over time. This product evolution leads to new part variants being added to the existing part mix. When at a future time the manufacturing system is not capable, as is or in a reconFigured state, to manufacture the evolved part variants, then this has negative consequences on business performance. This phenomena is being termed as disruptive product evolution. Due to complex interdependencies, incomplete information and uncertainty in manufacturing requirements this phenomena leads to a wicked problem. In order to tame such a wicked problem, this paper contributes and evaluates a knowledge-based decision-making approach that supports manufacturing system designers in exploring the interplay between business strategy, evolving product range and manufacturing systems. A prototype digital factory tool based on this approach has been developed and evaluated. The encouraging results obtained have shown that this research paves the way for the development and integration of such knowledge-based decision-making approaches within state of the art digital factory tools.

      PubDate: 2016-08-13T22:55:10Z
      DOI: 10.1016/j.cirpj.2016.06.001
       
  • Value-driven product service systems development: Methods and industrial
           applications
    • Authors: Alessandro Bertoni; Marco Bertoni; Massimo Panarotto; Christian Johansson; Tobias C. Larsson
      Abstract: Publication date: Available online 19 May 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Alessandro Bertoni, Marco Bertoni, Massimo Panarotto, Christian Johansson, Tobias C. Larsson
      In recent times a service-dominant logic is permeating the design of complex systems. However, in spite of their appeal, initiatives such as Product Service Systems (PSS) have not become mainstream, and methods are lacking to support this transition. This paper argues that methodological guidance, as well as tools for decision support, may be found in the research field of Value Driven Design (VDD), which originates in the realm of Systems Engineering. The paper objective is to elaborate on gaps and opportunities for cross-pollination between VDD and PSS. The results of a systematic review of methods and tools for design decision support highlight the opportunity for introducing optimization models derived from VDD in the PSS design process, while the latter can enrich VDD research with a more qualitative value assessment logic. The paper summarizes this integration in a methodological approach, and exemplifies its application in case studies mainly from the aerospace and road construction equipment sector.

      PubDate: 2016-06-16T18:04:27Z
      DOI: 10.1016/j.cirpj.2016.04.008
       
  • Towards a methodology to engineer industrial product-service system –
           Evidence from power and automation industry
    • Authors: Giuditta Pezzotta; Fabiana Pirola; Alice Rondini; Roberto Pinto; Mohamed-Zied Ouertani
      Abstract: Publication date: Available online 19 May 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Giuditta Pezzotta, Fabiana Pirola, Alice Rondini, Roberto Pinto, Mohamed-Zied Ouertani
      Manufacturing companies whose products have become increasingly commoditized are currently striving to identify innovative value propositions allowing them to re-position themselves in the market. This is gradually leading to a business shift from delivering traditional transaction-based, product-centric offering to the provision of integrated product-service systems (PSS). However, the number of companies failing in successfully pursue such a transition is still increasing. Consequently, Service Engineering (SE), a discipline concerned with the systematic development and design of services and product-services, is gaining particular interest in both the scientific and practitioner communities. This paper contributes to these fields by proposing a complete overview of the applicability of the SErvice Engineering Methodology (SEEM) in an industrial context. The SEEM aims at supporting companies approaching the introduction of PSSs in their portfolio and suggests a structured decision-making process to (i) define the PSS offering most aligned with company product(s) and customer needs, (ii) (re-)engineer the (existing) service delivery processes, and (iii) balance the external performance (e.g. customer satisfaction, delivery time, service cycle time) with the internal performance (i.e. efficiency) of the service delivery process. The noteworthy benefits achievable through the SEEM are illustrated through a real case at the industrial partner ABB – a multinational company providing power and automation solutions. The implementation of all the SEEM steps is thoroughly described, and the advantages experienced along with the difficulties encountered are highlighted. Managerial implications and the main gaps to address in future research are also discussed.

      PubDate: 2016-06-16T18:04:27Z
      DOI: 10.1016/j.cirpj.2016.04.006
       
  • An approach for steering products and services offering variety towards
           economic and environmental sustainability
    • Authors: Khaled Medini; Xavier Boucher
      Abstract: Publication date: Available online 12 May 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Khaled Medini, Xavier Boucher
      Customers’ individual preferences are calling for greater variety of firms’ offerings. Faced with this situation, firms endeavour to meet customer requirements while reducing their costs and impact on the environment to remain competitive. The attainment of these goals entails various issues that must be addressed including multiple performance drivers and criteria relating to environmental and economic sustainability and variety. Accordingly, trade-offs must be defined and balanced among such heterogeneous criteria to facilitate the decision-making process on a variety of levels regarding environmental and economic sustainability. These trade-offs should involve decision makers to reflect the firm's priorities and consider its business field. This paper proposes an approach supporting the decision-making process on offering variety to the market while considering environmental and economic sustainability criteria. More specifically, the approach uses economic and environmental performance indicators and inputs from decision makers to determine the variety of the offering to meet a given demand. The paper highlights the impact of variety steering on environmental and economic sustainability indicators.

      PubDate: 2016-06-16T18:04:27Z
      DOI: 10.1016/j.cirpj.2016.04.009
       
  • Exploring the consumption side of sustainable product-service systems
           (PSS): An empirical study and insights for PSS sustainable design
    • Authors: Thayla Tavares Sousa-Zomer; Paulo Augusto Cauchick Miguel
      Abstract: Publication date: Available online 4 May 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Thayla Tavares Sousa-Zomer, Paulo Augusto Cauchick Miguel
      The product-service systems (PSS) literature has demonstrated the need to understand how consumption patterns influence PSS introduction. This study investigates a result-oriented PSS for drinking water provision from the social practice theory perspective to provide insights of how approaches focused on the consumption side may be valuable for PSS development. A conceptual framework based on the literature was built to guide the study. For gathering field data, observations and semi-structured interviews were carried out. The main results demonstrated that the analysis of the practices elements, its configurations and the way practices interlock with one another are valuable for PSS design.

      PubDate: 2016-06-16T18:04:27Z
      DOI: 10.1016/j.cirpj.2016.04.004
       
  • Maturity-based approach for the development of environmentally sustainable
           product/service-systems
    • Authors: Daniela C.A. Pigosso; Tim C. McAloone
      Abstract: Publication date: Available online 29 April 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Daniela C.A. Pigosso, Tim C. McAloone
      Despite their substantial potential for enabling increased environmental performance, product/service-systems (PSS) are not intrinsically environmentally sustainable. In order to ensure increased environmental performance, PSS best practices should be integrated with ecodesign best practices, from the early stages of the development process. This paper aims to identify the best practices for PSS development, based on a systematic literature review, and to propose their integration into an existing maturity model for ecodesign, the EcoM2, into which 30 best practices for PSS development are identified and integrated. The proposed approach has the potential to enable the development of environmentally sustainable PSS offerings.

      PubDate: 2016-06-16T18:04:27Z
      DOI: 10.1016/j.cirpj.2016.04.003
       
  • A multidisciplinary method for sustainability assessment of PSS:
           Challenges and developments
    • Authors: Romain Allais; Julie Gobert
      Abstract: Publication date: Available online 26 April 2016
      Source:CIRP Journal of Manufacturing Science and Technology
      Author(s): Romain Allais, Julie Gobert
      In developed countries, industrial companies are facing challenges for competitiveness from countries with lower labor costs or less demanding environmental standards. Increasing production costs (material and labor), customer demand for more sophisticated products while purchasing power is decreasing and stricter environmental regulations are becoming strategic issues for the viability of industries. Eurêcook is an action research program aiming to construct and test a rental service offer for small household equipment in a medium-size French conurbation. A local ecosystem of actors is involved in providing a satisfactory service for consumers. Our role, as researchers, is to assess the environmental and societal changes caused by the business model transition. We assume success depends not only on a positive LCA but also on a climate of confidence and co-operation between stakeholders, as well as consumers’ behavioral change and appropriation of the project. A multidisciplinary method for sustainability assessment has been developed combining concepts and tools from social sciences with environmental and engineering sciences. Firstly, the current challenges for B-to-C PSS are obtained from a multidisciplinary review of literature and practice. Then, the socio-economic and environmental context and specific issues linked to small appliances were clarified. Thirdly, the case study is detailed: structuration of the offer, specific challenges and first observations. Finally, our method is presented and discussed.

      PubDate: 2016-06-16T18:04:27Z
      DOI: 10.1016/j.cirpj.2016.04.007
       
 
 
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