Transactions of Materials and Heat Treatment

Title：Numerical analysis of the springback in stretching of sheet metal based on multi-point die

Authors： ZHOU Zhao-hui CAI Zhong-yi LI Ming-zhe (Roll Forging Research Institute Jilin University Changchun Jilin 130022 China)

Unit：

KeyWords： stretching springback multi-point die numerical simulation

ClassificationCode：TG385.2

year,vol(issue):pagenumber：2006,31(2):94-97

Abstract：

Because elastic cushions are used in stretching based on multi-point die, the springback in this process is different from that in traditional solid die stretching process. The influence of pre-stretching and sheet metal thickness on springback is analyzed by ABAQUS software. The stretching processes are simulated when pre-stretching is 0.5%、0.75%、1% and thickness is 1mm、1.5mm、2mm. Numerical simulation results show that with the increase of pre-stretching, the springback on stretched parts decreases and with the increase of sheet metal's thickness, the springback decreases.

Funds：

国家自然科学基金资助项目(50275063);; 吉林大学“985工程”资助项目

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