薄壁深孔件精密成形裂纹的研究

Study on crazes of precise forming parts with thin wall and deep hole

研究了消除深孔薄壁挤压零件产生裂纹的措施 ,提出了用增大芯轴对孔的过盈量来提高金属塑性及内孔壁光洁度的方法 ,消除了裂纹的产生 ,制造出了使用性能较好的零件。

This paper deals with the process methods to eliminating the extruded crazes by increasing the punch diameter and hole surface finish The plans for extruding the deeper hole articles are feasible