锻压技术

关于修改杯突试验标准的几点建议

英文标题：Suggestions to Revise Erichsen Cupping Test

作者：张召桃平申

单位：北京航空学院北京航空学院

关键词：杯突试验标准建议

分类号：

出版年,卷(期):页码：1988,13(6):19-22

摘要：

本文详细分析了影响杯突试验结果的各种因素及降低试验结果分散度的途径,论述了以最大载荷下凸模压入板料的深度Hp及其与杯突值I_(?)的差值I_E-H_p作为评价板料载荷失稳前后变形能力的参数的必要性和可能性,在此基础上提出了修改杯突试验标准的建议。

—Various factors effecting the depth of cup in Erichsen tests and the ways to reduce the scatter among test data are analysed in detail. The depth (Hp) of t he punch going into sheet metal at maximum punch force and the difference between it and Erichsen value((?).I(?) H(?).are introduced to evaluate the deformation ability of sheet metal before and after load insta bility separately. Suggestions to revise Erichsen cupping test are presented at last.

基金项目：

参考文献：

[1] Michaelis E.E.,Sheet Metal Testing at the State Engineering School at Aalen Weurtt enberg,West Germany.Sheet Metal Ind.,Feb.,1971,137～144．
[2] Michaelis E.E.,The Erichsen Cupping Test.Sheet Metal Ind.,March,1965,206～212
[3] Erichsen A.,Verfahren und Vorrichtung zum Prufen von Metallblechen.德国专利号260180,1912年7月6提出。
[4] John R.Newby,A Practical Look at Biaxial Stretch Cupping Test.Sheet Metal Ind.,March,1977,240～253
[5] Committee,Report on Study of Cup Tes ting of Sheet Steel.ASTM Proceedings,Vol.38,Part1,1937,490～492．
[6] 张召桃,平申,杯突试验终点判别的载荷下降法。锻压技术,1988年第1期.
[7] Ake Persson,Investions into the Repro ducibility of the Modified Erichsen Test.Sheet Metal Ind.,June,1970,533～543．
[8] Beer,Franz,Investigations into the Accuracy of Machines for the Erichsen Cupping Test.Sheet Metal Ind.,July,1966,562～567．
[9] 尚波生,板料成形性模拟试验的研究--杯突试验。北京航空学院硕士论文,1984年。
[10] H.W.Swift,Plastic Instabitity under Pla ne Stress.J.Mech.Phys.Solids,Vol.1,1952,P1．
[11] R.HilI,On discontinous Plasti(?) States with Special Reference to Localized Necking in the Sheet.J.Mech.Phys.,Solids,Vol.1,1952,P19．
[12] Z.Marciniak,K.Kuezynski,Limit Strain in the Processes of Stretch forming Sheet Met al.Int.J.Mech.Sci.,No.9,Vol.9,1967,P609．
[13] 杜颂,胡世光,平板单向拉伸应变分布的测定及物性方程的建立。锻压技术,1987年第4期。

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