Multi-criteria decision-making for the life cycle of sustainable high pressure die casting products
by Emanuele Pagone; Michail Papanikolaou; Konstantinos Salonitis; Mark Jolly
International Journal of Sustainable Manufacturing (IJSM), Vol. 4, No. 2/3/4, 2020

Abstract: In the scientific literature there is a scarcity of comprehensive and organic studies on performance indicators encompassing sustainability and their influence on decision-making. This work aims at selecting the most suitable material to manufacture an automotive component using a high pressure die casting (HPDC) process according to four classes of metrics: cost, time, quality and sustainability. The performance of three different alloys (aluminium-A380, magnesium-AZ91D and zinc-ZA8) was evaluated considering overall product life cycle aspects and process characteristics through a deterministic technique for order of preference by similarity to ideal solution (TOPSIS). Results show that the zinc alloy should be chosen on a unit mass-basis mainly thanks to its significantly superior quality and sustainability performance. This study demonstrates that the inclusion of the sustainability dimension in a multi-criteria decision analysis context challenges well-established material selection trends in the automotive industry developed during the past decades.

Online publication date: Mon, 04-May-2020

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