To study growth and remove of concave, U and V shape crack defect using the method simulating transversal crack with test and FEM analysis in the course of multi-pass drawing stainless steel wire rod.

• 在多道次拉拔不锈钢线材过程中,用模拟表面横裂的方法,通过试验和FEM分析,研究凹形、U形、V形裂纹缺陷的生长和消除。