The structure, main design parameters and work process of the compound die installed on single action press and working for blanking and drawing with constant blankholderpressure were presented.
介绍了用于单动压力机的新型恒压边力落料拉伸复合模的结构及主要设计参数和模具工作过程。
2
The simplified theoretical model of normal pressure was derived, and the pressure delivery principle of multi-point blankholder was analyzed with FE simulation.
The result indicates that proper blankholder force and liquid pressure will help to reduce the occurrence of drawing defects and the application of hydroforming can get more uniform wall thickness.