FORMABILITY OF STAINLESS SHEET METALS BY DEEP DRAWING-INTEGRAL APPROACH

Abstract

The paper contains a comprehensive experimental approach to the analysis and solving of problem of stainless steel sheet metals formability at deep drawing. The first phase involves complete investigation of the material (mechanical properties, formability indicators, limit formability curves, tribological properties, structure and, possibly, chemical composition). What follows is a consideration of an actual work-piece: identification of critical zones, types of defects, determining of strain fields, and defining of strain path in limit formability diagram. Investigation and analysis of all obtained results lead to conclusion on solving the problem of formability, and subsequently the necessary parameters of forming process, tools, machines and materials are defined. The procedure was applied on complex geometry work-piece. The work-piece material is austenitic stainless steel sheet metal (AISI 304).