Transactions of Materials and Heat Treatment

Title：Calculation of critical blank holder force for drawing cone part with semicircular drawbead

Authors： LIU Jian-hua1 WANG Zhi-heng2(1.School of Construction Machinery Chang'an University Xi'an 710064 China 2.School of Materials Science and Engineering Inner Mongolia University of Technology Hohhot 010051 China)

Unit：

KeyWords： cone part drawbead BHF

ClassificationCode：TG386.3

year,vol(issue):pagenumber：2009,34(2):103-105

Abstract：

Accoding to the geometry of semicircular drawbead and the mechanics characteristic of blank during drawing cone part with drawbead,the minimum BHF was defined as a force that could keep the blank press close to drawbead,and the maximum BHF was the maximum force for avoid inner-buckle.Then the minimu and the maximum BHF were critically calculated,and the reasonable area of the BHF was obtained for drawing cone part with semicircular drawbead.Thus the BHF selected was at this area during drawing process,it should be sure that the outer-buckle and crack couldn't arise.

Funds：

长安大学青年科学基金(06Z11);; 陕西省自然科学基金(2006E114)

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