Deep drawing failure modes

Abstract

In this paper, we have presented various technological process conditions leading to the damage of workpieces or the manufacture of low-quality pieces during deep drawing of metal sheets. All the conditions, resulting in failure modes, have been included in the general classification. According to this classification, there are three main directions of potential failures: complete or partial fracture, buckling or wrinkling, and surface damage. The rigorous relations between production parameters and possible negative consequences have been also given. For the first time, the different aspects of such an issue have been considered together. Thus, we have takenthe first steps towards creating a reliable system for assessing the risk of complex failures in obtaining deep-drawn products (caused by the impact of several reasons at the same time).Having developed this system, we wouldfacilitate the advancement of deep drawing technology and it might well open up new horizons for the deep-drawn products of unrivalled quality without rejections, equipment breakdown, emergency downtime, etc. © Published under licence by IOP Publishing Ltd.