Superplastic forming of the empty cone part with 8 surface protuberances made of 7A04 aluminium alloy has been tested after analysis of its structure process.

• 在对空心圆锥体外侧表面带凸耳的7A04铝合金零件超塑性成形结构工艺性分析的基础上,进行模具设计和超塑性成形试验。