...性; 超塑性胀形; 微观组织[gap=1107]Key words: Al-6Mg-0.2Sc alloy; high strain rate superplasticity; superplastic bulging; microstructure...
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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％。
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