Transactions of Materials and Heat Treatment

Title：Improving hydraulic pressure machine into real-time controlling multipoints variable blank holder force with computer

Authors： ZHU Wei GONG Hong-ying LIU Hui ZHANG Zhi-liang LOU Zhi-liang SHU Shi-xiang ZHOU Shi-kan (National Die & Mould CAD Engineer Research Center Shanghai Jiaotong University)

Unit：

KeyWords： Deep drawing Industrial control mathine Multipoints variable blank holder force

ClassificationCode：TG385

year,vol(issue):pagenumber：2004,29(4):58-62

Abstract：

This paper briefly introduces a method which can help to realize variable blank holder force at random during deep drawing process on original hydraulic pressure machine, when propping jar is made use of the momentum of blank holder force by the aid of computer control techniques. In the same time, the author brings forward a project of adding a series of tiny different length poles at different region within two layers blank holder loops to achieve variable blank holder force with different transformation ratio at different regions.

Funds：

Reference：

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