The effect of the deformation condition on the axial compressive precision forming process of tube with curling die was investigated by using a rigid-plastic FEM. The results show that the forming accuracy depends mai...The effect of the deformation condition on the axial compressive precision forming process of tube with curling die was investigated by using a rigid-plastic FEM. The results show that the forming accuracy depends mainly on geometric condition rp/d0, little on tube material properties and friction condition; the relative gap △/2rp of double-walled tubes obtained decreases with Increasing rp/d0, and there is a parameter k for a given to/do or rp/t0, when rp/d0 >k, △/2rp< 1, otherwise △/2rp>1.展开更多
Subject Code:E02With the support of the National Natural Science Foundation of China,a collaborative team led by Profs.Zhao Zhisheng(赵智胜)and Tian Yongjun(田永君)from the State Key Laboratory of Metastable Materials...Subject Code:E02With the support of the National Natural Science Foundation of China,a collaborative team led by Profs.Zhao Zhisheng(赵智胜)and Tian Yongjun(田永君)from the State Key Laboratory of Metastable Materials Science and Technology,Yanshan University demonstrates a new form of carbon with展开更多
基金The authors would like to thank NSFC for support toenable the performing of this research (No. 59775055).
文摘The effect of the deformation condition on the axial compressive precision forming process of tube with curling die was investigated by using a rigid-plastic FEM. The results show that the forming accuracy depends mainly on geometric condition rp/d0, little on tube material properties and friction condition; the relative gap △/2rp of double-walled tubes obtained decreases with Increasing rp/d0, and there is a parameter k for a given to/do or rp/t0, when rp/d0 >k, △/2rp< 1, otherwise △/2rp>1.
文摘Subject Code:E02With the support of the National Natural Science Foundation of China,a collaborative team led by Profs.Zhao Zhisheng(赵智胜)and Tian Yongjun(田永君)from the State Key Laboratory of Metastable Materials Science and Technology,Yanshan University demonstrates a new form of carbon with
