Consolidating spare parts for asset maintenance with additive manufacturing
Autor: | Willem H.M. Zijm, Matthijs C. van der Heijden, Nils Knofius |
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Přispěvatelé: | Industrial Engineering & Business Information Systems |
Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
Design modification
Economics and Econometrics 021103 operations research Total cost 05 social sciences 0211 other engineering and technologies 02 engineering and technology Capital good Management Science and Operations Research General Business Management and Accounting Industrial and Manufacturing Engineering Profit (economics) Consolidation (business) Spare part 0502 economics and business Operations management Business Digital manufacturing 050203 business & management Spare parts management |
Zdroj: | International journal of production economics, 208, 269-280. Elsevier |
ISSN: | 0925-5273 |
Popis: | Consolidation of parts is the redesign of an assembled component with fewer, but therefore more complex parts. While complex parts are often difficult to produce with conventional manufacturing (CM) technologies, the high degree of design freedom of additive manufacturing (AM) facilitates consolidation. Typically, consolidation with AM is chosen because of its functional benefits such as weight reductions. Consequences for asset maintenance, however, are not that well understood. For example, the spare parts management may profit from potentially shorter AM resupply lead times, but may suffer from more expensive consolidated parts having to be stocked in anticipation of random failures. In this paper, we analyze the total costs of consolidation with AM, including logistics, manufacturing and repair costs. Our results suggest that consolidation with AM often leads to higher total costs. This finding mainly stems from loss of flexibility. For example, in case of a failure, a consolidated component has to be replaced entirely whereas the conventional assembled component might only require replacement of a defective sub-component. Furthermore, short resupply lead times for the consolidated spare part turn out to have little impact and therefore relativize the benefit of consolidation with AM. Overall, these findings stress the necessity to adopt a total costs perspective when assessing the effects of design changes with AM. Otherwise, design changes may lead to unforeseen effects which may render its application debatable, even despite substantial functionality improvements. |
Databáze: | OpenAIRE |
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