The multi-point pressing and forming technology and its stamping process

Wrinkling often occur in the sheet metal forming processes,it is the result of the compression buckling.Multi-point forming and technique was explored that can improve the sheet stability and reduce the wrinkling of the sheet metal forming processes.Sheet metal is restricted by the elastic pressing force putting on the upper and lower surfaces of sheet in stamping.Based on the technique,reconfigurable poles flexible die was developed.The die can be used to implement the stamping processes of multi-point pressing and forming.The results of tests indicated that the die can be reconfigured quickly and suppress the wrinkling of sheet.Multi-point pressing and forming technology provides a practical and effective way for the curved sheet metal forming.It is especially applied to form the sheet metal parts with middle-small batch.