Design and making technology of the cantalever hollow profile porthole die are analyzed, the process of cooperating and moulding technology and EDM manufacture course are introduced in detail.

• 分析小型腔悬臂空心型材分流组合模设计与制造特点,着重介绍其配合成型加工及型芯曲面电火花成型加工的工艺过程。