Effect of Back Tension in Multi-pass Drawing on Central Bursting Defect
In this paper,effect of back tension in multi-pass drawing or wiredrawing on central bursting defect is investigated using finite element predictions of central bursting defect.A rigid-plastic finite element method is employed together with the McClintock damage model.Central bursting defects under different back tension stress values ranging from 0% to 20% of the yield strength of the material are predicted and they are compared to reveal the effect of the back tension stress values on the central bursting defects.It is shown that intensity of back tension has deep influence of cumulative damage and thus back tension raises the possibility of central bursting defect even though it decreases the interfacial stress between die and material.
Finite Element Analysis Artificial Body-force Method Back Tension Central Bursting Defect Multi-pass drawing
S.W.Lee M.C.Kim H.Y.Ryu M.S.Joun
Korea Institute of Industrial Technology,Jinju,Republic of Korea Department of Mechanical Engineering,Gyeongsang National University,Republic of Korea School of Mechanical Engineering,Gyeongsang National University,Republic of Korea
国际会议
沈阳
英文
988-994
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）