...模拟的空拔铜管拉拔参数的优化 - TNMSC 关键字: 空拔；铜管；拉拔参数；有限元；正交实验法[gap=1669]Key words: hollow sinking; copper tube; drawing parameter; finite element; orthogonal experiment..
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本文用双周数表计算了铜合金厚壁管空拔后的壁厚。
The wall thickness of thick wall copper tube drawn without plug is calculated by using Zhou-Zhou formula.
空拔后钢管的弯曲度越大，均壁作用越小，甚至加剧壁厚不均。
The greater the tube-flexure after drawing is, the worse the wall-uniform effect and even the non-uniformity of wall thickness is aggravated.
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。
Pipe sinking drawing is analysed using continuous speed field and the equations of wall thickness variations in sinking drawing established.
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