Transactions of Materials and Heat Treatment

Title：Rectangular box drawing die design of controlled blank holder force

Authors： LI Xi-ning WANG Zhong-qi YIN Jun-qing(School of Mechatronical Engineering Northwestern Polytechnical University Xi'an Shanxi 710072 China)

Unit：

KeyWords： deep drawing rectangle part blank holder force

ClassificationCode：TG385.2

year,vol(issue):pagenumber：2006,31(1):46-47

Abstract：

Blank holder structure and blank holder force(BHF) are very important to the part quality in deep drawing.The flange deformation of rectangle parts is not uniformity during forming process.In order to improve the condition,the segment structure of blank holder is introduced to die design.The blank holder is divided into straight part and circular part which can separately move.The BHF can be reasonably changed with the wrinkling law by control system,so the flange formability and the part quality can be improved.

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Reference：

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