无芯棒拉拔
pipe sinking drawing is analysed using continuous speed field and the equations of wall thickness variations in sinking drawing established.
利用连续速度场分析了圆管空拔过程,建立了空拔壁厚变化量计算式。
calculation on diameter sinking in sinking-drawing
空拔管直径缩小量的计算
calculation of optimum die reduction angle in sinking-drawing
空拔管最佳模角的计算
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