一、简介 试验结果告诉我们:软铝深方盒可以利用橡胶模进行深拉伸来完成。这篇文章里介绍了压力曲线,凸模尺寸对成形极限的影响,并与圆形盒拉伸作了比较,在由圆形过渡到方形的第二次拉伸也同样由橡胶模完成,此外文章对如何提高拉伸极限值作了研 First, the introduction The test results tell us: soft aluminum deep box can use the rubber mold for deep drawing to complete. This article describes the pressure curve, the impact of punch size on the forming limit, and compared with the circular box stretch, the transition from the round to the square of the second stretch is also completed by the rubber mold, in addition The article made a research on how to increase the tensile limit