Remanufacturing in the Circular Economy

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Publisher : John Wiley & Sons
ISBN 13 : 1119664373
Total Pages : 234 pages
Book Rating : 4.1/5 (196 download)

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Book Synopsis Remanufacturing in the Circular Economy by : Nabil Nasr

Download or read book Remanufacturing in the Circular Economy written by Nabil Nasr and published by John Wiley & Sons. This book was released on 2019-10-16 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic growth and rising levels of consumption in developing and developed countries has been observed as being deeply coupled with natural resource usage and material consumption. The increasing need for natural resources has raised concerns regarding issues such as resource scarcity, undesirable environmental impacts due to material extraction, primary production, and suboptimal product disposal, and social or political tensions. Product End-of-Life (EoL) options, such as reusing or recycling, attempt to limit or reduce the amount of waste sent to a landfill, providing strategic means to decouple the link between economic growth and resource usage. These EoL options have the potential to close material loops, further utilizing wastes as resources, reducing environmental impacts, conserving natural resources, reducing material prices, and providing job opportunities in developing countries. Remanufacturing, on the other hand, is a unique EoL option due to increasing the number of life cycles of a product before final disposal. First, recurring environmental benefits, such as emission and raw material extraction avoidance are obtained with each additional product life cycle. Second, individual resource efficiency yields increase through product remanufacture. Resource efficiency or, using more with less will continue to compound with each additional life cycle. Third, recirculating products decreases the demand and dependency for primary resource production, further closing the material loop and creating a more circular economy. In addition, remanufacturing can initiate more preferable EoL options such as recovery, recycling, and waste reduction. While remanufacturing offers numerous benefits, there is significant lack of literature and books covering the fundamentals of operations, technologies and business models. The proposed book will provide in-depth coverage of remanufacturing fundamentals and its strong link to circular economy and resource efficiency.

Remanufacturing Engineering

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Publisher :
ISBN 13 : 9781682863633
Total Pages : 0 pages
Book Rating : 4.8/5 (636 download)

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Book Synopsis Remanufacturing Engineering by : Jude Stinton

Download or read book Remanufacturing Engineering written by Jude Stinton and published by . This book was released on 2016-05-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past ten years, the remanufacturing engineering has gained pace in the industrial area as it is one of the most effective and potential strategies for the "end-of-life" product management. This book presents an overview of the remanufacturing engineering. It details topics like remanufacturing processes, product designs and environmental analysis. This book aims to compile a thorough survey and provide a foundation for further researches. It covers theoretical as well as practical aspects to understand the applications of this field. Students will find this text beneficiary.

Remanufacturing in the Circular Economy

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119664349
Total Pages : 234 pages
Book Rating : 4.1/5 (196 download)

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Book Synopsis Remanufacturing in the Circular Economy by : Nabil Nasr

Download or read book Remanufacturing in the Circular Economy written by Nabil Nasr and published by John Wiley & Sons. This book was released on 2019-10-15 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic growth and rising levels of consumption in developing and developed countries has been observed as being deeply coupled with natural resource usage and material consumption. The increasing need for natural resources has raised concerns regarding issues such as resource scarcity, undesirable environmental impacts due to material extraction, primary production, and suboptimal product disposal, and social or political tensions. Product End-of-Life (EoL) options, such as reusing or recycling, attempt to limit or reduce the amount of waste sent to a landfill, providing strategic means to decouple the link between economic growth and resource usage. These EoL options have the potential to close material loops, further utilizing wastes as resources, reducing environmental impacts, conserving natural resources, reducing material prices, and providing job opportunities in developing countries. Remanufacturing, on the other hand, is a unique EoL option due to increasing the number of life cycles of a product before final disposal. First, recurring environmental benefits, such as emission and raw material extraction avoidance are obtained with each additional product life cycle. Second, individual resource efficiency yields increase through product remanufacture. Resource efficiency or, using more with less will continue to compound with each additional life cycle. Third, recirculating products decreases the demand and dependency for primary resource production, further closing the material loop and creating a more circular economy. In addition, remanufacturing can initiate more preferable EoL options such as recovery, recycling, and waste reduction. While remanufacturing offers numerous benefits, there is significant lack of literature and books covering the fundamentals of operations, technologies and business models. The proposed book will provide in-depth coverage of remanufacturing fundamentals and its strong link to circular economy and resource efficiency.

Remanufacturing and Advanced Machining Processes for New Materials and Components

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Author :
Publisher : Taylor & Francis
ISBN 13 : 1000528669
Total Pages : 204 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis Remanufacturing and Advanced Machining Processes for New Materials and Components by : Е.S. Gevorkyan

Download or read book Remanufacturing and Advanced Machining Processes for New Materials and Components written by Е.S. Gevorkyan and published by Taylor & Francis. This book was released on 2022-03-22 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remanufacturing and Advanced Machining Processes for Materials and Components presents current and emerging techniques for machining of new materials and restoration of components, as well as surface engineering methods aimed at prolonging the life of industrial systems. It examines contemporary machining processes for new materials, methods of protection and restoration of components, and smart machining processes. • Details a variety of advanced machining processes, new materials joining techniques, and methods to increase machining accuracy • Presents innovative methods for protection and restoration of components primarily from the perspective of remanufacturing and protective surface engineering • Discusses smart machining processes, including computer-integrated manufacturing and rapid prototyping, and smart materials • Provides a comprehensive summary of state-of-the-art in every section and a description of manufacturing methods • Describes the applications in recovery and enhancing purposes and identifies contemporary trends in industrial practice, emphasizing resource savings and performance prolongation for components and engineering systems The book is aimed at a range of readers, including graduate-level students, researchers, and engineers in mechanical, materials, and manufacturing engineering, especially those focused on resource savings, renovation, and failure prevention of components in engineering systems.

Re-engineering Manufacturing for Sustainability

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9814451487
Total Pages : 719 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Re-engineering Manufacturing for Sustainability by : Andrew Y. C. Nee

Download or read book Re-engineering Manufacturing for Sustainability written by Andrew Y. C. Nee and published by Springer Science & Business Media. This book was released on 2013-04-08 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume presents the proceedings of the 20th CIRP LCE Conference, which cover various areas in life cycle engineering such as life cycle design, end-of-life management, manufacturing processes, manufacturing systems, methods and tools for sustainability, social sustainability, supply chain management, remanufacturing, etc.

Surface Engineering

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Publisher : Trans Tech Publications Ltd
ISBN 13 : 3038131881
Total Pages : 870 pages
Book Rating : 4.0/5 (381 download)

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Book Synopsis Surface Engineering by : M.K. Lei

Download or read book Surface Engineering written by M.K. Lei and published by Trans Tech Publications Ltd. This book was released on 2008-03-07 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters CPCI-S (WoS). The theme of this collection was “Innovation and Development of Surface Engineering Towards a Conservation-Minded Society”; a timely reminder of the obligation of advanced technologies to commit to energy & resource saving and environmental protection. Surface engineering must play a more-and-more important role in energy-saving, materials-saving and environmental protection in the coming years obey the 4R (Reuse, Reduce, Recycle, Remanufacture) rule and contribute to development of the world economy.

Metal Magnetic Memory Technique and Its Applications in Remanufacturing

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Publisher : Springer Nature
ISBN 13 : 981161590X
Total Pages : 242 pages
Book Rating : 4.8/5 (116 download)

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Book Synopsis Metal Magnetic Memory Technique and Its Applications in Remanufacturing by : Haihong Huang

Download or read book Metal Magnetic Memory Technique and Its Applications in Remanufacturing written by Haihong Huang and published by Springer Nature. This book was released on 2021-05-10 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the metal magnetic memory (MMM) technique, one of the nondestructive testing methods, and its applications in remanufacturing engineering. It discusses the advantages of MMM and how to evaluate the early damage degree of remanufacturing cores, as well as the repairing quality of remanufactured components. Various MMM signal characteristics are extracted to reflect the damage degree of remanufacturing cores, coatings and interfaces. All the theoretical models, analysis methods and testing results of MMM in this book provide guidance to control the quality of remanufactured parts and products. This book can help readers make the best use of the MMM technique in remanufacturing engineering.

Advances in Remanufacturing

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Publisher : Springer Nature
ISBN 13 : 303152649X
Total Pages : 549 pages
Book Rating : 4.0/5 (315 download)

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Book Synopsis Advances in Remanufacturing by : Marcello Fera

Download or read book Advances in Remanufacturing written by Marcello Fera and published by Springer Nature. This book was released on with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Product and process design for successful remanufacturing

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Publisher :
ISBN 13 : 9789185295739
Total Pages : 96 pages
Book Rating : 4.2/5 (957 download)

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Book Synopsis Product and process design for successful remanufacturing by : Erik Sundin

Download or read book Product and process design for successful remanufacturing written by Erik Sundin and published by . This book was released on 2004 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Remanufacturing Modeling and Analysis

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Publisher : CRC Press
ISBN 13 : 1439863083
Total Pages : 418 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Remanufacturing Modeling and Analysis by : Mehmet Ali Ilgin

Download or read book Remanufacturing Modeling and Analysis written by Mehmet Ali Ilgin and published by CRC Press. This book was released on 2016-04-19 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: New, Now, Next. Consumers' ever growing appetite to acquire new products and their short courtship with them has kept manufacturers busy not only expending resources at an alarming rate, but also depleting these resources and giving rise to waste and pollution at a correspondingly increasing and disturbing rate. Traditional manufacturing methods th

Towards Lean Remanufacturing

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Publisher : Linköping University Electronic Press
ISBN 13 : 9175190451
Total Pages : 96 pages
Book Rating : 4.1/5 (751 download)

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Book Synopsis Towards Lean Remanufacturing by : Jelena Kurilova-Pališaitien?

Download or read book Towards Lean Remanufacturing written by Jelena Kurilova-Pališaitien? and published by Linköping University Electronic Press. This book was released on 2015-05-25 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remanufacturing is an environmentally sound material recovery option which is essential to compete for sustainable manufacturing. The aim with remanufacturing at a majority of companies is to prolong physical product performance by delivering the same or betterthan-original product quality. In general, remanufacturing is an industrial process that brings used products back to useful life by requiring less effort than is demanded by the initial production process. Consequently, from a product life-cycle perspective, remanufacturing generates great product value. Remanufacturers lag behind manufacturers since they often face complex and unpredictable material and information flows. Based on a review of remanufacturing research, remanufacturing challenges in material and information flows can be classified into three groups: insufficient product quality, long and unstable process lead times, and an unpredictable level of inventory. While some remanufacturing researchers state that manufacturing and remanufacturing are significantly different, they have more in common than many other processes operations. Therefore, to sustain competitive remanufacturing, companies investigate an opportunity for improvement through the employment of lean production that generates significant benefits for manufacturers. In order to investigate the potential to address remanufacturing challenges by lean production, a Minimum time for material and information flow analysis (MiniMifa) method was developed. This method originates from the value stream mapping (VSM) method, broadly practiced to bring lean to manufacturing companies. The focus of MiniMifa was to collect empirical data on the identified groups of remanufacturing challenges from the remanufacturing perspective, and to provide a basis for the development of improvements originating from lean principles. Lean production was selected for this research due to its system perspective on material and information flows. Among the defined lean principles in remanufacturing, a pull principle was investigated at the case companies. The suggested principle demonstrated a reduction in lead time, followed by improvements in inventory level and product quality. However, in order to become lean, remanufacturers have to overcome three levels of lean remanufacturing challenges: external and internal challenges as well as lean wastes. Finally, this research reduces the gap between academia and industry by contributing with a possible solution to the identified remanufacturing challenges in material and information flows.

Computational Intelligence in Remanufacturing

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Publisher : IGI Global
ISBN 13 : 1466649097
Total Pages : 348 pages
Book Rating : 4.4/5 (666 download)

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Book Synopsis Computational Intelligence in Remanufacturing by : Xing, Bo

Download or read book Computational Intelligence in Remanufacturing written by Xing, Bo and published by IGI Global. This book was released on 2013-12-31 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: In attempts to reduce greenhouse gas emissions, many alternatives to manufacturing have been recommended from a number of international organizations. Although challenges will arise, remanufacturing has the ability to transform ecological and business value. Computational Intelligence in Remanufacturing introduces various computational intelligence techniques that are applied to remanufacturing-related issues, results, and lessons from specific applications while highlighting future development and research. This book is an essential reference for students, researchers, and practitioners in mechanical, industrial, and electrical engineering.

Swarm, Evolutionary, and Memetic Computing

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Publisher : Springer Science & Business Media
ISBN 13 : 3642353800
Total Pages : 830 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Swarm, Evolutionary, and Memetic Computing by : Bijaya Ketan Panigrahi

Download or read book Swarm, Evolutionary, and Memetic Computing written by Bijaya Ketan Panigrahi and published by Springer Science & Business Media. This book was released on 2012-12-16 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Third International Conference on Swarm, Evolutionary, and Memetic Computing, SEMCCO 2012, held in Bhubaneswar, India, in December 2012. The 96 revised full papers presented were carefully reviewed and selected from 310 initial submissions. The papers cover a wide range of topics in swarm, evolutionary, memetic and other intelligent computing algorithms and their real world applications in problems selected from diverse domains of science and engineering.

Sustainable Manufacturing and Remanufacturing Management

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Publisher : Springer
ISBN 13 : 3319734881
Total Pages : 351 pages
Book Rating : 4.3/5 (197 download)

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Book Synopsis Sustainable Manufacturing and Remanufacturing Management by : Weidong Li

Download or read book Sustainable Manufacturing and Remanufacturing Management written by Weidong Li and published by Springer. This book was released on 2018-06-29 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on the latest research and applications in the fields of sustainable manufacturing and remanufacturing, as well as process planning and optimization technologies. It introduces innovative algorithms, methodologies, industrial case studies and applications. It focuses on two topics: sustainable manufacturing for machining technologies and remanufacturing of waste electronic equipment, and various methods are covered for each one, including macro process planning, dynamic scheduling, selective disassembly planning and cloud-based disassembly planning. The experimental analysis provided for every method explains the benefits, as well as how they are sustainable for various real-world applications. Further, a theoretical analysis and algorithm design is presented for each, accompanied by the contributors’ relevant research, including: • step-by-step guides; • application scenarios; • relevant literature surveys; • implementation details and case studies; and • critical reviews on the relevant technologies. This book is a valuable resource for researchers in sustainable manufacturing, remanufacturing and product lifecycle management communities, as well as practicing engineers and decision-makers in industry and all those interested in sustainable product development. It is also useful reading material for postgraduates and academics wanting to conduct relevant research, and a reference resource for manufacturing engineers developing innovative tools and methodologies.

Glocalized Solutions for Sustainability in Manufacturing

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Publisher : Springer Science & Business Media
ISBN 13 : 3642196926
Total Pages : 699 pages
Book Rating : 4.6/5 (421 download)

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Book Synopsis Glocalized Solutions for Sustainability in Manufacturing by : Jürgen Hesselbach

Download or read book Glocalized Solutions for Sustainability in Manufacturing written by Jürgen Hesselbach and published by Springer Science & Business Media. This book was released on 2011-03-19 with total page 699 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 18th CIRP International Conference on Life Cycle Engineering (LCE) 2011 continues a long tradition of scientific meetings focusing on the exchange of industrial and academic knowledge and experiences in life cycle assessment, product development, sustainable manufacturing and end-of-life-management. The theme “Glocalized Solutions for Sustainability in Manufacturing” addresses the need for engineers to develop solutions which have the potential to address global challenges by providing products, services and processes taking into account local capabilities and constraints to achieve an economically, socially and environmentally sustainable society in a global perspective. Glocalized Solutions for Sustainability in Manufacturing do not only involve products or services that are changed for a local market by simple substitution or the omitting of functions. Products and services need to be addressed that ensure a high standard of living everywhere. Resources required for manufacturing and use of such products are limited and not evenly distributed in the world. Locally available resources, local capabilities as well as local constraints have to be drivers for product- and process innovations with respect to the entire life cycle. The 18th CIRP International Conference on Life Cycle Engineering (LCE) 2011 serves as a platform for the discussion of the resulting challenges and the collaborative development of new scientific ideas.

Sustainability in Remanufacturing Operations

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Publisher : Springer
ISBN 13 : 3319603558
Total Pages : 183 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Sustainability in Remanufacturing Operations by : Paulina Golinska-Dawson

Download or read book Sustainability in Remanufacturing Operations written by Paulina Golinska-Dawson and published by Springer. This book was released on 2017-07-14 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present customers’ consumption models result in an increasing number of used products that need to be collected and reused or disposed. Remanufacturing is a favourable scenario in order to recover the end-of-use products. It allows to capture substantial part of the resources which were used in the primary production at lower cost, providing economic, environmental and social benefits. The book presents the methods, models, case studies for improvement of sustainability in remanufacturing facilities. The focus is on small- and medium-sized enterprises and their challenges to meet resource-efficiency goal.

Remanufacturing Initiation for Original Equipment Manufacturers

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Author :
Publisher : Linköping University Electronic Press
ISBN 13 : 918075628X
Total Pages : 139 pages
Book Rating : 4.1/5 (87 download)

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Book Synopsis Remanufacturing Initiation for Original Equipment Manufacturers by : Johan Vogt Duberg

Download or read book Remanufacturing Initiation for Original Equipment Manufacturers written by Johan Vogt Duberg and published by Linköping University Electronic Press. This book was released on 2024-04-29 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remanufacturing is an industrial process in which a core – a used, discarded, or broken product – is transformed into a product with a like-new specification and condition. However, to this date, remanufacturing activities on the market are few compared to manufacturing. There are several types of remanufacturers; the least common type is the original equipment remanufacturer, an original equipment manufacturer that not only manufactures new products but also remanufactures cores of its own products. Remanufacturing is potentially becoming a more widely used industrial process for original equipment manufacturers, and increased remanufacturing activities can positively contribute to the environment. The contribution comes from a reduction of raw material and energy consumption compared to manufacturing. Therefore, remanufacturing has the potential to decouple environmental impact from economic growth, thus contributing to more sustainable societies. However, assessing the benefits of remanufacturing does not directly correlate to growth within the remanufacturing industry. To encapsulate the environmental, social, and economic benefits of remanufacturing, manufacturers need to be aware of how remanufacturing can be initiated and implemented in practice. Therefore, the objective of this dissertation is to develop support measures for original equipment manufacturers to initiate profitable remanufacturing. This research takes a stand in case study and transdisciplinary research where the initiation of profitable remanufacturing is studied at two original equipment manufacturers. The research study developed knowledge of how remanufacturing could be incorporated into existing operations at original equipment manufacturers. In parallel, financial assessments based on cost-benefit analysis were built to measure how well the case companies could perform remanufacturing. For the case study research, seven remanufacturing scenarios were developed, ranging from centralised remanufacturing performed by the original equipment manufacturer to decentralised performed at multiple locations using a retail network. Which scenario is preferable depends on, for example, risk-consciousness, cooperation between actors, and volume targets. However, given ideal circumstances, remanufacturing in-house in a centralised scenario was shown to be the most beneficial for the investigated original equipment manufacturer since the fewer middle hands and economies of scale also potentially enable lower costs. For the transdisciplinary research, the remanufacturing initiation was business model-centric, meaning that the remanufacturing system was a consequence of a decision for a specific business model. Here, a scenario-based analysis was developed to understand under which circumstances the business model with remanufacturing was more lucrative for the provider – the original equipment manufacturer – and less costly for the users – the customers. For this, a systematic assessment approach was developed consisting of three steps: (1) provide a cost overview for each business model, (2) create scenarios by modifying the cost drivers, and (3) combine scenarios to reach synergetic effects. Based on the case study, two sets of four prerequisites for initiating remanufacturing were derived. These are divided into essential and supporting prerequisites and illustrated through a framework called the Remanufacturing Rocket. The essential prerequisites highlight fundamental requirements to perform remanufacturing. Should one of these four factors be missing, remanufacturing cannot be successfully initiated. The supporting prerequisites are valuable to enhance the effectiveness and efficiency of the process, such as through streamlined operations, organisational change, or information exchange. Hence, to reach the fullest potential of remanufacturing, both the essential and the supporting prerequisites are needed. Furthermore, the area of financial assessments was explored in a systematic literature review to identify insights for developing such assessments tailored for individual original equipment manufacturers in initiating remanufacturing. For this, six perspectives for framing financial assessments are proposed. These cover the system boundaries for the assessments as well as the individual needs and visions of original equipment manufacturers. Additionally, a framework was developed to select financial assessment models for remanufacturing initiations based on ease of use and capability to handle complex datasets. Conclusively, it is proposed to apply the prerequisites for initiating remanufacturing together with a financial assessment in an iterative manner to investigate the profitability for original equipment manufacturers to initiate remanufacturing. The essential prerequisites influence the first iteration of the financial assessment, which then contributes to refinements of how the essential prerequisites should be aligned in an economically preferable way. Once satisfactory, another iterative process could be initiated between the supporting prerequisites and the financial assessment. By using the proposed approach, the prospects of profitable remanufacturing could be thoroughly investigated before attempting to initiate a process in practice, thus reducing the number of resources spent in vain. Additionally, the iterative process was integrated into a 5-step Approach For Initiating Remanufacturing (5AFIR) to guide original equipment manufacturers towards initiating profitable remanufacturing. Refabrikation (oder Wiederaufbereitung, engl. Remanufacturing) ist ein industrieller Prozess, bei dem ein Altteil – ein gebrauchtes, ausrangiertes, verschlissenes oder defektes Produkt – gemäß den Herstellerspezifikationen in einen neuwertigen Zustand gebracht wird. Heutzutage macht Refabrikation allerdings nur einen kleinen Teil der Fertigungsindustrie aus. Verschiedene Arten von Unternehmen betreiben Refabrikation, wobei Originalgerätehersteller, sogenannte OEMs (engl. für Original Equipment Manufacturer), am seltensten sind. Solche OEMs betreiben neben Produktion auch eine Wiederaufbereitung ihrer eigenen Produkte. Refabrikation kann sowohl ökologische als auch ökonomische Vorteile bringen und hat somit grundsätzlich hohes Marktpotential. Der geringere Rohstoff- und Energieverbrauch von Refabrikation im Vergleich zu Neuproduktion ist ein Beispiel für ökologischen Vorteil. Refabrikation ermöglicht außerdem, negative Umweltauswirkungen durch Produktion und Wirtschaftswachstum voneinander unabhängig zu machen und trägt somit zu nachhaltigem Wachstum bei. Allerdings hängt der Nutzen von Refabrikation nicht direkt mit dem Wachstum innerhalb der Refabrikationsbranche zusammen. Um die ökologischen, sozialen und ökonomischen Vorteile nutzen zu können, müssen Hersteller Kompetenz zur praktischen Umsetzung von Refabrikation aufbauen. Ziel dieser Dissertation ist daher die Entwicklung von Unterstützungsmaßnahmen und -konzepten für OEMs, die zu profitabler Refabrikation führen. Diese Arbeit basiert auf einer Fallstudie und auf transdisziplinärer Forschung, bei der die Einführung von profitabler Refabrikation bei zwei OEMs untersucht wurde. Die Fallstudie lieferte Erkenntnisse darüber, wie Refabrikation in bestehende Abläufe bei OEMs integriert werden kann. Außerdem wurden finanzielle Bewertungskriterien auf der Grundlage einer Kosten-Nutzen-Analyse erstellt, um messen zu können, wie erfolgreich die untersuchten Unternehmen Refabrikation implementieren könnten. Für die Fallstudie wurden sieben Refabrikationsszenarien entwickelt, die von zentraler Refabrikation durch das OEM bis zu dezentraler Refabrikation an mehreren Standorten durch ein Netzwerk von Niederlassungen reichen. Welches der Szenarien vorzuziehen ist, hängt beispielsweise vom Risikobewusstsein, der Zusammenarbeit der Akteure und den angestrebten Stückzahlen ab. Unter idealen Umständen erwies sich die unternehmensinterne Refabrikation mit zentralisierter Struktur als das vorteilhafteste Szenario. Für die untersuchten OEMs führten weniger Zwischenhändler und Größenvorteile zu geringeren Kosten. In der transdisziplinären Forschung dieser Dissertation wurde davon ausgegangen, dass das Refabrikationssystem aus der Entscheidung für ein bestimmtes Geschäftsmodell folgt. Basierend auf verschiedenen Szenarien wurde analysiert, unter welchen Umständen das Geschäftsmodell inklusive Refabrikation für den Anbieter (OEM) lukrativer und für die Anwender (Kunden) kostengünstiger war. Hierzu wurde ein systematisches Bewertungsschema entwickelt, das aus drei Schritten besteht: (1) Bereitstellung einer Kostenübersicht für jedes Geschäftsmodell, (2) Erstellung von Szenarien durch Modifikation der Kostentreiber und (3) Kombination von Szenarien, um Synergieeffekte zu erzielen. Anforderungen für die Einführung von Refabrikation wurden auf Basis der Fallstudie abgeleitet. Diese sind in vier essentielle und vier unterstützende Anforderungen eingeteilt und werden durch ein Modell namens Refabrikationsrakete veranschaulicht. Die essentiellen Anforderungen sind grundlegend für die Durchführung von Refabrikation. Ist eine dieser vier Anforderungen nicht erfüllt, kann Refabrikation nicht erfolgreich umgesetzt werden. Die unterstützenden Anforderungen steigern die Effektivität und Effizienz des Einführungsprozesses, beispielsweise durch optimierte Abläufe, organisatorische Änderungen oder Informationsaustausch. Um das volle Potenzial von Refabrikation auszuschöpfen, müssen sowohl die essentiellen als auch die unterstützenden Anforderungen erfüllt werden. Wirtschaftliche Bewertungskriterien wurden im Rahmen einer systematischen Literaturrecherche betrachtet. Ziel der Recherche war es, Erkenntnisse für die Entwicklung solcher Bewertungskriterien zu erlangen. Die Kriterien sollen dabei auf einzelne OEMs und die Einführung von Refabrikation zugeschnitten sein. In dieser Arbeit werden sechs Ansätze für die Entwicklung wirtschaftlicher Bewertungskriterien vorgeschlagen. Diese Ansätze behandeln sowohl Systemgrenzen für die Bewertungskriterien als auch individuelle Bedürfnisse und Ziele der OEM. Darüber hinaus wurde ein Rahmenwerk entwickelt, um wirtschaftliche Bewertungskriterien auf Basis ihrer Benutzerfreundlichkeit und ihrer Fähigkeit zur Bewältigung komplexer Datenmengen auszuwählen. Abschließend wird vorgeschlagen, die Anforderungen für die Einführung von Refabrikation zusammen mit einer wirtschaftlichen Bewertung iterativ zu prüfen, um die Rentabilität von Refabrikation für OEMs zu analysieren. Die essentiellen Anforderungen beeinflussen die erste Iterationsschleife der wirtschaftlichen Bewertung. In dieser ersten Schleife wird verfeinert, wie die Grundanforderungen wirtschaftlich sinnvoll kombiniert werden können. Es folgt eine zweite Iterationsschleife zwischen den unterstützenden Anforderungen und der finanziellen Bewertung. Mit diesem Vorgehen kann das Potential einer rentablen Refabrikation gründlich untersucht werden bevor mit der Realisierung begonnen wird. Dadurch können eventuell erfolglose Einführungsversuche vermieden und vergeblich aufgewendete Ressourcen reduziert werden. Der iterative Prozess wurde in einen 5-stufigen Modell zur Einführung von Refabrikation (5AFIR) zusammengefasst. Återtillverkning är en industriell process där en stomme – en använd, uttjänt eller trasig produkt – omformas till en produkt vars specifikation och kvalitet motsvarar nyskick. Idag utgör återtillverkning endast en liten del av den totala tillverkningsindustrin. Det finns flera typer av återtillverkare; den ovanligaste är originaltillverkande återtillverkare, det vill säga, ett tillverkande företag som även återtillverkar sina egna produkter. Genom den låga grad av återtillverkning bland originaltillverkare idag finns det utrymme för att verka för en ökning. En sådan ökning kan bidra till miljömässiga fördelar genom att mängden råmaterial och energi reduceras jämfört med nytillverkning. Det finns därför en möjlighet för återtillverkning att bidra till en frikoppling av miljömässig påverkan från ekonomisk tillväxt, vilket i sin tur bidrar till ett mer hållbart samhälle. Fast att endast värdera nyttan av återtillverkning leder inte direkt till en tillväxt inom återtillverkningsindustrin. För att omfamna de miljömässiga, sociala och ekonomiska nyttor som återtillverkning kan bidra med måste originaltillverkare vara medvetna om hur återtillverkning kan initieras och implementeras i praktiken på ett ekonomiskt lönsamt sätt. Denna doktorsavhandlings syfte är därför att utveckla stöd för originaltillverkare att initiera lönsam återtillverkning. Forskningen utgår från en fallstudie och transdisciplinär forskningsmetodik där initieringen av lönsam återtillverkning studeras vid två originaltillverkare. Den utförda forskningen utvecklade kunskap om hur återtillverkning kan integrerats i en originaltillverkares befintliga verksamhet. Parallellt med detta utvecklades ekonomiska utvärderingsmetoder för att tillhandahålla ett mått på hur väl fallföretagen skulle kunna utföra återtillverkning. För fallstudien utvecklades det sju återtillverkningsscenarion som sträcker sig från centraliserad återtillverkning, som utförs av originaltillverkaren, till decentraliserad, som utförs vid flertalet platser inom ett återförsäljarnätverk. Vilket scenario som var mest fördelaktigt berodde exempelvis på riskmedvetenhet, samarbete mellan aktörer, och tillverkningsvolym. Men givet ideala förhållanden visades det att centraliserad återtillverkning vore potentiellt mest fördelaktigt för fallföretaget, eftersom färre mellanhänder och stordriftsfördelar möjliggör lägre kostnader. För det andra fallföretagets initieringen av återtillverkning vid tillämpning av den transdisciplinära forskningsmetodiken var det ett affärsmodellsfokus, vilket innebar att återtillverkningssystemet var en konsekvens av ett beslut för en viss affärsmodell. I denna del av forskningen utvecklades en scenariobaserad analysmetod för att förstå under vilka förhållanden som affärsmodellen tillsammans med återtillverkning vore mer lukrativt för företaget – originaltillverkaren – och mindre kostsamt för användaren – kunden. För detta utvecklades en systematisk ansats för ekonomiska utvärderingar bestående av tre steg: (1) tillhandahåll en kostnadsöverblick för varje affärsmodell, (2) skapa scenarion genom att modifiera kostnadsdrivarna, och (3) kombinera scenarion för att uppnå synergieffekter. Med utgångspunkt i fallstudien utvecklades även faktorer för att forma krav för hur originaltillverkare kan initiera återtillverkning. Dessa faktorer delas upp i grundläggande och stödjande kravställningar, och de bygger tillsammans upp ett ramverk benämnt Återtillverkningsraketen. De grundläggande kravställningarna lyfter fram elementära krav vid utförandet av återtillverkning och om en av de fyra skulle saknas kan återtillverkning inte utföras på ett framgångsrikt sätt. De stödjande kravställningarna är av värde för att förbättra återtillverkningseffektiviteten genom exempelvis bekymmersfritt utförande av processer, organisationsförändringar, eller informationsutbyten. Därigenom, för att nå den fulla potentialen av återtillverkning, behövs både de grundläggande och de stödjande kravställningarna. Dessutom utforskades området för ekonomiska utvärderingsmetoder i en systematisk litteraturgenomgång för att identifiera insikter för att utveckla sådana metoder skräddarsydda för individuella originaltillverkare som initierar återtillverkning. För ändamålet föreslås sex perspektiv för att forma ekonomiska utvärderingsmetoder. Dessa täcker såväl systemgränserna för utvärderingarna som individuella behov och visioner hos originaltillverkare. För att vidare stödja företagen utvecklades ett ramverk för att välja ekonomiska utvärderingsmetoder för initieringar av återtillverkning baserat på användarvänlighet och förmåga att hantera komplexa datamängder. Slutligen föreslås det att tillämpa de framtagna kravställningarna tillsammans med ekonomisk utvärdering genom att iterativt undersöka möjligheterna för hur återtillverkning kan initieras för originaltillverkare. De grundläggande kravställningarna influerar upplägget för den första iterationen av den ekonomiska utvärderingen, vilken i sin tur nyttjas för att förfina hur de grundläggande kravställningarna kan läggas samman på ett ekonomiskt fördelaktigt sätt. När en godtagbar nivå uppnåtts kan ytterligare en iterativ process utföras mellan de stödjande kravställningarna och den ekonomiska värderingen. Genom att tillämpa det föreslagna tillvägagångssättet kan möjligheterna för återtillverkning undersökas på en detaljerad nivå innan initieringsförsök i praktiken, och såldes kan mängden slösade resurser minskas. Utöver detta integrerades det iterativa tillvägagångssättet med en 5-stegsansats för initiering av återtillverkning (5AFIR).