2009•Suxing gongcheng xuebaoRequires access

Study of variable blank holder force curve for rectangular box drawing based on numerical simulation

Zhongqi Wang

Abstract

The technology of variable blank holder force(VBHF) is the blank holder force can be disposed according to the forming characters of different phases in sheet metal forming.So sheet metal formability can be taken fully and products quality improved.However,it is difficult that how to design the VBHF for the complicated parts forming.In this paper,the sheet forming simulation of rectangular box was conducted and the method of determining VBHF were proposed based on the displacement in the Z direction of blank holder.

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Key concepts: Blank, Formability, Sheet metal, Deep drawing, Displacement (psychology), Mechanical engineering, Materials science, Die (integrated circuit)