对三角形底盘筒形件的成形工艺进行了分析，决定采用弯曲、拉深、胀形复合模等进行复合成形。
As the shape technology of triangle chassis canister is analyzed, then the processes of bending, stretching and bulging compound mould are adopted to reunite the shape.
分析了高压涡轮冷却外壳的成形工艺，并介绍了聚氨酯胀形模的结构设计和模具工作过程以及模具调试改进。
The forming technology of skin-cooling high pressure turbine was analyzed, introduced polyurethane bulging die structure design and the working process and die debugging improvement.
采用多点模具拉形时，由于弹性垫的使用，拉形后成形件的回弹量与使用整体模拉形时有所不同。
Because clastic cushions are used in stretching based on multi-point die, the springback in this process is different from that in traditional solid die stretching process.
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