多道次拉拔管的三维弹塑性有限元分析

钢铁研究学报, 2000, 12(3): 27-30.

1.中国科学院金属研究所,辽宁,沈阳,110015

2.中国科学院金属研究所,辽宁,沈阳,110015

3.中国科学院金属研究所,辽宁,沈阳,110015

4.中国科学院金属研究所,辽宁,沈阳,110015

基金项目: 中国科学院特别支持项目

Study of Multi-Pass Drawing Tube by Three Dimensional Elastic-Plastic FE Method

借助有限元分析软件模拟了316L不锈钢管的拉拔过程,比较了单道次拉拔与多道次拉拔对残余应力场的影响,发现在变形量相同的条件下,单道次拉拔引发的残余拉应力较小,且分布较均匀.通过比较变形区各方向应力场的异同,发现减少拉拔道次能明显降低拉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.

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