【作者】 郝永刚； 张晶； 林鹏； 池成忠；

【Author】 Hao Yong-gang;Zhang Jing;Lin Peng;Chi Cheng-zhong;Taiyuan University of Technology;

【机构】 太原理工大学；

【摘要】 本文对TA1纯钛板室温下各向异性和拉压不对称性进行了表征,并采用拉深实验和有限元模拟方法研究了各向异性和拉压不对称性对其拉深成形行为的影响。结果表明:TA1纯钛板具有明显的各向异性和拉压不对称性,其拉压不对称性又表现为屈服拉压不对称性和硬化拉压不对称性。TA1纯钛板的各向异性导致凸耳产生,其拉压不对称性会使拉深件筒口壁厚增厚率减小,凸耳率增大,并影响其拉深力。更多还原

【Abstract】 The anisotropy and tension-compression asymmetry of TA1 pure titanium sheet at room temperature were characterized in this paper, and their effect on the drawing behavior was studied with experimental and finite element simulation methods. The results show that: the TA1 pure titanium sheet shows obvious anisotropy and tension-compression asymmetry, and the latter exhibits yield and hardening tension-compression asymmetry. The anisotropy of TA1 pure titanium sheet leads to earing, and the tension-compression asymmetry will reduce the thickness of the deep drawing parts, increase the earing ratio and influence the drawing force.更多还原