Transactions of Materials and Heat Treatment

Title：Compensation algorithm for springback in sheet metal forming based on numerical simulation

Authors： HU Zhi-chao LI Yan-ping CHANG Yong WANG Qin-feng LI Yi

Unit： Jimei University

KeyWords： sheet metal forming springback compensation transfer function springbackcom system numerical simulation

ClassificationCode：TG386

year,vol(issue):pagenumber：2012,37(2):163-166

Abstract：

Springback errors in sheet metal stamping process can be corrected by amending the shape of the die. An algorithm was established for compensating springback in sheet metal forming based on theories of control system, Fourier transform, transfer function and numerical simulated part shape following forming and springback. The springbackcom system was designed based on this algorithm. In this algorithm, the transfer function was set up through two groups of dies with a small change amount and their part before and after stamping springback which was used to amend die shape. With this method , the process numerical simulation and springback compensation of car hood stamping was verified. The result proves the effectiveness and engineering value of this springback compensation.

Funds：

国家自然科学基金资助项目（51175224）；福建省教育厅科技计划资助项目（JB10093）

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