并导出了平底及锥形凹模内正挤空心件时单位挤压力的计算公式。

The formulas of extrusion for hollow parts in the square dies and the conical dies has been derived.

youdao

并导出了平底及锥形凹模内正挤空心件时单位挤压力的计算公式。

The formulas of extrusion for hollow parts in the square dies and the conical dies has been derived.

youdao