目前从很多文献及资料中介绍,对圆筒形及低矩形工件的引伸研究比较多,也比较全面。而对于高矩形件毛坯形状和尺寸的确定还是研究较少的一个环节。对于给定的矩形件,模具设计人员一般都是先给出参考的毛坯形状和尺寸,然后,通过几次试模修正到合适的形状和尺寸。这样不仅增加了试模 At present, a lot of literature and information to introduce, the extension of the cylindrical and low-rectangular workpiece more research, but also more comprehensive. However, the determination of the shape and size of the high rectangle blank is still less studied. For a given rectangle, the mold designer usually gives the shape and size of the reference blank first, and then corrects to the right shape and size by trial and error. This not only increases the test mode