During the development of an automobile part obtained by stamping process, time and money are required aiming process planning setup a new tooling. One difficulties in is to know if chosen material will have sufficient formability reach final form project. Because this difficulty, it very interesting propose method that can accurately simulate forming process. The failure criteria be mathematic...

Abstract Background Many metals exhibit a stress overshoot, the so-called cross-hardening when subjected to specific strain-path change. Existing tests for sheet are limited an equivalent prestrain of 0.2 and show varying levels identical grades. Objective The aim is determine at large strains, relevant forming processes. Mild steel grades (DC04, DC06, DX56) high strength (BS600, DP600, ZE800) ...

This study investigated the deep drawing of square cups using high-strength du-al phase DP600 and DP800 sheets via both experimental finite element meth-ods. The limiting ratio (LDR) wall thickness distribution were exam-ined. initial materials used in was equal to 1-mm. experiments carried out at room temperature Teflon film graphite spray lubricants same time. In terms LDR, numerical results ...

The microstructure and micro-texture in different areas of a friction stir (FS)-welded DP600 steel were investigated by means electron backscatter diffraction. volume fraction martensite non-polygonal ferrite was evaluated based on the image quality (IQ) parameter. Analysis grain boundaries revealed that sub-grain as well low-angle heat-affected zone (HAZ) (SZ) more than doubled compared to tho...