This article studied the deformation mode during superplastic bulging of conical cup from sheet metal.
研究了圆锥杯形件的变形模式，将其成形过程分为三个阶段。
The constrained superplastic bulging process is investigated by a large rigid-plastic finite element method.
采用大变形刚塑性有限元法模拟超塑性材料轴对称锥形模约束胀形过程。
The experimental results show that: the relative limit height of the superplastic bulging increases by 15% with the strong electric field.
结果表明：外加强电场可使胀形制件的相对极限高度提高15％。
This paper introduces a method to controll a superplastic bulging by a gas-pressure and a height curve. This method can significantly reduce the thinning rate and unevenness of bulging material.
超塑性胀形控制有各种方法，本文介绍了一种按气压与高度曲线控制的方法，使成形过程更接近于等应变速率胀形，能进一步改善零件厚度的不均匀性。
The superplastic gas bulging forming of a rolled magnesium alloy AZ31 at different temperature and gas pressure was researched.
研究了AZ31镁合金板材不同工艺条件下的气胀成形性能。
The superplastic gas bulging forming of a rolled magnesium alloy AZ31 at different temperature and gas pressure was researched.
研究了AZ31镁合金板材不同工艺条件下的气胀成形性能。
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