Transactions of Materials and Heat Treatment

Title：Drawing technology of fender based on variable blankholder force

Authors： ZHU Mei-yun FU Jian CUI Li-chun XIONG Fei

Unit： Anhui Jiang Huai Automobile Co. Ltd. Xihua University

KeyWords： servo technology variable blank-holder force FEM fender variable blank-holderll-force controlling curve (VBHFCC)

ClassificationCode：TG386

year,vol(issue):pagenumber：2012,37(3):28-31

Abstract：

Based on eta/Dynaform, the drawing process of fender was simulated. The drawing results with constant and variable blank-holder force were compared.The results show that under constant stamping parameters, none of qualified stamping parts is obtained whether increasing or reducing constant blank-holder force（BHF）.But under the control of optimized variable blank-holder force（VBHF），the qualified stamping parts are obtained via servo technology. Finally，the drawn part got by practical test is agreed with the simulation results .

Funds：

国家科技重大专项资助项目（2010ZX04004-112-4）；安徽省科技厅基金资助项目（11010201020）

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