Redesign Method of Manufacturing Technologies Based on Environmental Performance Evaluation

DS 58-4: Proceedings of ICED 09, the 17th International Conference on Engineering Design, Vol. 4, Product and Systems Design, Palo Alto, CA, USA, 24.-27.08.2009

Year: 2009
Editor: Norell Bergendahl, M.; Grimheden, M.; Leifer, L.; Skogstad, P.; Lindemann, U.
Author: Mishima, Nozomu; Kondoh, Shinsuke; Hotta, Yuji; Watari, Koji; Yasuoka, Masayoshi; Masui, Keijiro
Series: ICED
Section: Product and Systems Design
Page(s): 107-118


To achieve sustainable society, many efforts in reducing environmental impact of manufacturing have been tried. However, for engineers, enhancing manufacturing quality has long been the most significant goal. Therefore, to evaluate environmentally consciousness of manufacturing technologies, it is necessary to consider manufacturing quality. For the purpose, we have proposed a new indicator to evaluate products and manufacturing processes named "total performance indicator (TPI)". TPI shows a balance of manufacturing quality versus environmental impact and cost of the manufacturing system. The bottleneck process in enhancing product quality can be clarified, by calculating TPI of each process. This paper analyses an actual product and allocates quality characteristics to functional requirements of the product. Then, it quantifies the contribution of each process in creating the product value. A process doesn't contribute much in creating value and generating considerable environmental impact and cost should be improved. It is shown that a designer can evaluate and redesign manufacturing technologies, based on the result of this TPI approach.

Keywords: Environmental impact, manufacturing technology, manufacturing quality, redesign, total performance indicator


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