摘要
利用有限元法对圆柱形坯料及凹形坯料镦粗过程的数值模拟结果，给出了工件变形区中典型点在屈服表面上的加载轨迹，通过对加载轨迹的研究，揭示了凹形坯料缴粗不易出现纵向裂纹的原因。
In this paper, FEM is used to simulate the upsetting processes for a cylindrical billet and a concave billet respectively. With the simulation results, it is obtained of the loading paths of several typica1 points in the deformation zone, and the reason is also obtained why concave billet is not easy to be fractured in the outer surface during the upsetting processes.
出处
《锻压技术》
CAS
CSCD
北大核心
1997年第1期3-8,共6页
Forging & Stamping Technology
