借助有限元分析软件ANSYS,模拟了316L不锈钢管的空拔过程,比较了单道拉拔与多道拉拔对残余应力场的影响,发现在变形量相同的条件下,单道拉拔引发的残余拉应力较小且分布较均匀,通过比较变形区各向应力场的异同,发现减少拉拔道次能明显减少空拔管变形过程的不均匀性,有利于改善管材表面质量,减小残余应力.
参考文献
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