Review of research progress on galling in sheet metal forming

摘要

Galling is a known failure mechanism in sheet metal forming. It results in increased cost of die maintenance and scrap rate of products. For high strength steels, problems with galling are of major interest, since forming pressure is high as well as shear stress. In the last ten years, significant progress has been made on development and understanding of galling in sheet metal forming. In this paper, the main test apparatus and the methods used to reduce galling tendency are reported. And the galling mechanisms of galling are also analyzed.