Research on the Extrusion Process of belt with Notch Descrition

The extrusion process of the belt is a in which and inner bore barrel undergo complex contact collision, rifling gradually penetrates belt, so that material continues to fail destroy. It has high instantaneous, strong impact, temperature, high-speed change. There big gap between existing theory actual process, it urgent carry out research work on this problem. This paper analyzes basic characteristics elastic plastic deformation during establishes Johnson-Cook constitutive model deformation, flow failure material. Explicit dynamic calculations are carried extrusion, problems, problems discussed depth