A method about free contractive diameter has been introduced and compared with upset extrusion.

介绍了冷挤花键轴自由缩径成形方法，并将其和镦挤成形方法进行了比较；

youdao

A method about free contractive diameter has been introduced and compared with upset extrusion.

介绍了冷挤花键轴自由缩径成形方法，并将其和镦挤成形方法进行了比较；

youdao