Transactions of Materials and Heat Treatment

Title：A method of regulating blank holder force on single-acting hydraulic press

Authors： TAO You-rui~(1 2) WU An-ru~1 HE Ai-gui~1 1.Department of Mechanical Engineering Hunan Institute of Engineering Xiangtan 411104 China 2.State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Hunan University 410082 China

Unit：

KeyWords： sheet metal forming variable blank holder force single-acting hydraulic press

ClassificationCode：TG315.4

year,vol(issue):pagenumber：2007,32(6):122-124

Abstract：

Variable blank holder force(BHF)is an important technology in stamping.To solve the problem of regula- ting BHF on single-acting hydraulic press,a method to regulate BHF on single-acting hydraulic press was invented.A self-made regulation device for BHF was appended on single-acting hydraulic press.The experiment results show that some different kinds of curves of BHF can be obtained and the types of BHF curve are influenced by some factors of hy- draulic press and regulation device.A mechanical device was used to regulate BHF and curves of BHF can be obtained repeatedly.The method to regulate BHF is both simple and practical The cost to remodel single-acting hydraulic press is low.The method can be applied in scientific research and industry.

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Reference：

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