In the die design, the use of spherical punch made the process of deepdrawing and reverse redrawing achieved in one set of mold and common hydraulic press.
在进行模具设计时，采用半球形凸模等方式可以实现正、反拉深在一套模具，普通液压机上完成加工。
2
The structural design of the hydraulicdeepdrawing die is described and compared with the hard die deep drawing in the paper.
阐述了橡皮液压拉深模的结构设计并与硬模拉深做了对比。
3
The forming accuracy of flat and round bottomed cylindrical shells formed by hydraulic counter pressure deepdrawing is investigated.