WEAR STUDY UNDER PLASTIC-DEFORMATION CONDITIONS

Lubrication in metalworking processes is characterized by plastic defo rmation conditions resulting in generation of a large amount of virgin surface and of heat of deformation. The study of wear under these con ditions is important from the point of view of product quality and too l/die wear. A laboratory study of wear under simulated plastic deforma tion conditions using pairs of mild steel and EN31 discs on an Amsler friction and wear testing machine was carried out. The worn surfaces a nd wear particles were examined by scanning electron microscopy. It wa s observed that wear with a mineral oil was greater than that with a v egetable oil. This paper analyses the phenomenon through an examinatio n of the surfaces and the wear particles.