汽车前地板成形有限元数值模拟

doi:10.13229/j.cnki.jdxbgxb20180764

Abstract

Abstract:

Taking the front floor of a car as an example, the finite element software Autoform was used for numerical simulation analysis of forming process. The defects such as splitting, wrinkling, and failure during the forming process of the sheet metal were predicted through simulation analysis. By adjusting the size of the blank holder force, the drawbead parameters, the offset between the punch and the die, and the friction coefficient, the simulation results were optimized to obtain a set of the most suitable parameters for actual production process. After setting the variable strength double drawbeads, the optimum conditions for the process parameters are: blank holder force is 650 kN, forming force is 5200 kN, the offset between punch and die is 0.8 mm and the friction coefficient is 0.15. Based on the simulation results, a forming experiment was carried out and a qualified forming part was obtained, which effectively shortened the development cycle of the die and reduced the design cost.

Key words: materials synthesis and processing technology, automobile panel, numerical simulation, finite element method, drawbead

CLC Number:

TG386

Xin LI,Yan-peng SUN,Dan WANG,Jun-xu CHEN,Zheng-wei GU,Hong XU. Finite element numerical simulation for automobile front floor forming[J].Journal of Jilin University(Engineering and Technology Edition), 2019, 49(5): 1608-1614.

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工序号	工序内容	设备
OP10	拉延	J36-800
OP20	修边冲孔	JE36-400
OP30	斜楔修边冲孔	JE36-400
OP40	翻边	JE36-400

Finite element numerical simulation for automobile front floor forming

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