Research on the Critical Analysis of BHF (Blank Holder Force) for Hemispheroid Drawing with Semicircular Drawbead
According to the geometry of semicircular drawbead and the mechanics characteristic of blank during hemispheroid workpiece drawing with drawbead, the minimum BHF is defined as a force that can keep the blank press close to drawbead, and the maximum BHF is the maximum force for avoiding inner buckle. Then the minimum and the maximum BHF are critically calculated, and the reasonable area of the BHF is obtained for hemispheroid part drawing with semicircular drawbead. Thus the BHF selected is at this area during drawing process, it should be sure that the wrinkle and crackle couldnt arise.
circular drawbead bhf
Liu Jianhua Wang Zhiheng
School of Construction Machinery, Changan University, Xian 710064, P. R. China School of Materials Science and Engineering, Inner Mongolia University of Technology,Huhhot 010051,
国际会议
长春
英文
284-286
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）