盒形件亚椭圆形毛料的拉深效果

Effect of Para-Elliptic Blanks in Deep Drawing Boxes

介绍并比较了用亚椭圆形、八角形和长圆形等形状的毛料,在不同几何参数的矩形拉深模具上拉深的实验结果。证实用亚椭圆形毛坯制得的盒形件在有效高度,口部平齐度等方面优于其它形状的毛料。推广这种毛料,将取得提高材料利用率、减少拉深次数和降低成本的效果。

A comparison is made between different shapes of sheet metal blanks for deep drawing boxes by use of a rectangular die with different geometrical parameters. Results show that boxes drawn with para-elliptical blanks are superior to those drawn with other blanks. Para-elliptical blanks give the optimal drawing effect.