Optimization of Initial Blank Shape to Minimize Defects in an A Pillar Inner Panel Using Finite Element Method

L.M. Li

doi:10.4028/www.scientific.net/AMR.538-541.1045

Paper Titles

A New Numerical Simulation System for a Flexible Beam with Imbedded Fluid
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Algorithm and Application of Springback Modification for Complex Bending Parts
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A Rapid Inverse Method of Material Performance Parameters in Sheet Metal Forming
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Influence of Cooling Rate on the Microstructure in HCCI/Steel Bimetal Composite Hammer
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Optimization of Initial Blank Shape to Minimize Defects in an A Pillar Inner Panel Using Finite Element Method
p.1045

Effect of the Multi-Electromagnetic Fields on the Solidification Process of the Continuous Casting Hollow Billet
p.1049

Effect of Partitioning of Quenching-Partitioning-Tempering Process on Microstructures and Hardness in High Carbon Steels
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Research on Fuzzy-PID Compound Control in Inverter-Driven Energy-Saving Technology for Injection Molding Machine
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Mechanical Analysis of Warm Extrusion Precision Forming on 42CrMo Steel Cutting Pick
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Optimization of Initial Blank Shape to Minimize Defects in an A Pillar Inner Panel Using Finite Element Method

Abstract:

Wrinkling and cracking are two major problems of the automobile inner panel. In this study, the stamping process of an A pillar inner panel is studied with the finite element (FE) method, aimed at avoiding drawbacks due to wrinkling and cracking. The established numerical model is proved accurate by comparing the numerical final configuration to the real part. Then the material flow of the blank is analyzed. It is concluded that blocking of material flow is the main reason for those two pathologies. Thus, a gap design is suggested to minimize the concerned defects. According to the numerical results, after optimizing, the inner panel is free from formability problems.