Applications of FE Simulation for Stamping and Blanking of Sheet Materials

摘要

Production of light weight and crash resistant vehicles requires extensive use of AHSS (DP, TRIP, TWIP) and Al alloys to form complex shapes. This paper discusses the practical determination of material properties and evaluation of lubricants for establishing optimum conditions for stamping these materials. The emphasis is on practical use of FE simulations and includes: 1) determination of material properties and friction, 2) application of servo drive presses to improve formability in forming of AHSS and Al alloys, 3) FE simulation of hot stamping to obtain tailored properties, 4) predicting the pierced/blanked edge quality and its effects on fracture limits in flanging, and 5) predicting onset of necking and fracture by using FE simulations.