膜相对减薄率随着电压的增加而增加。
The relative reduction rate of the thickness increased with increasing voltage.
盒型件的减薄率随缓冲时间的增大呈减小趋势。
The thinning ratio of the box-shaped products reduces with the increase of cushion time.
板料厚度大，不易起皱，但壁厚减薄率大，因而成形精度不高。
The thick blank is difficulty wrinkled, but the blank thinning is larger and result in a low forming precision.
最后利用优化结果进行模拟，壁厚减薄率明显下降，得到了满意的效果。
Finally, to simulation the results of optimization, the wall thickness reduction decreased and get satisfactory results.
理论计算结果与实验结果对比表明，所得减薄率选取范围具有较强的实用性。
The experiment results, show that the range of reduction ratio is very practicable.
计算结果表明：在转臂上施加一定的反向弯矩，能有效减小弯管的壁厚减薄率。
It shows that pipe bending by using induction heating applied a counter torque can efficiently reduce the thinning ratio of pipe wall thickness.
通过数值模拟与实验结果的比较，得出了获得较理想的成形薄壁筒形件时减薄率的选取范围。
Through the comparison of numerical simulation value and experiment results, the range of reduction ratio was obtained while the tube forming ideality.
获得了成形角、减薄率、进给比等工艺参数对等效应力、旋压力及内筋成形高度的影响规律，为旋压工艺参数的选择和优化提供了依据。
The rules which various parameters influence spinning force and equivalent stress are obtained and its provide theoretical evidence for choosing the optimal parameters.
获得了成形角、减薄率、进给比等工艺参数对等效应力、旋压力及内筋成形高度的影响规律，为旋压工艺参数的选择和优化提供了依据。
The rules which various parameters influence spinning force and equivalent stress are obtained and its provide theoretical evidence for choosing the optimal parameters.
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