板料力学性能参数的测定及有效性验证
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摘要
本文分析了影响拉深成形性能的内部和外部因素。通过薄板拉伸试验,对1Cr13不锈钢板料的加工硬化指数n、应变强度系数k和厚向异性指数γ等主要力学性能参数进行测定,并详细介绍了参数的测定方法和数据的处理。最后将测定数据应用于软件中,通过模拟结果和实测结果的比较,对参数测定的有效性进行了验证。该方法可有效提高模拟软件的准确性。
This paper analyzes the inner and outer factors that affect deep drawing performance. Through the thin plate tensile test, the strain mechanical properties parameters of 1cr13 stainless steel,including the hardening exponent, the strain hardening coefficient and the strain ratio of width and thickness, are measured, and introduced in detail the method for measurement of the parameters and the data processing. Finally the measured data was applied to the software, through the comparison of simulation results and measured results, the parameters measurement of effectiveness is verified.This method can effectively improve the accuracy of the simulation software.
This paper analyzes the inner and outer factors that affect deep drawing performance. Through the thin plate tensile test, the strain mechanical properties parameters of 1cr13 stainless steel,including the hardening exponent, the strain hardening coefficient and the strain ratio of width and thickness, are measured, and introduced in detail the method for measurement of the parameters and the data processing. Finally the measured data was applied to the software, through the comparison of simulation results and measured results, the parameters measurement of effectiveness is verified.This method can effectively improve the accuracy of the simulation software.
引文
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[2]包向军,蒋宏范,何丹农,等.材料参数对汽车覆盖件冲压成形性能影响的数值模拟[J].机械工程材料,2001,25(7):15-17.
[3]彭颖红.金属塑性成形仿真技术[M].上海:上海交通大学出版社,1999:60-87.
[4]王祖唐,关廷栋,肖景容,等.金属塑性成形原理[M].北京:机械工业出版社,1989.
[5]路平,徐正兴,黄常标,等.基于Web的板料力学性能参数共享数据库建设[J].锻压装备与制造技术,2011,46(6):105-109.
[6]肖华,刘艳,汤禹成,等.高强度钢冲压回弹量对板料力学性能参数的灵敏度分析[J].锻压装备与制造技术,2007,42(2):69-72.