还介绍了一种线切割内导柱孔方法，减少了制造过程中的一些环节。
In order to reduce manufacturing progress, a measure how to cut inward oriented hole is introduced.
利用直导柱导向，推杆顶料，斜顶杆完成脱模及内抽芯方式并对模具的材料进行了选择。
Using straight-pillar orientation, push rod top expected, leading to complete drawing of patterns and winning ways of pumping core materials and components for the choice.
导柱外表面自上而下呈与弧形内凸头配合的波浪状。
The outer surface of the guide post is in a wavy shape matched with the arc-shaped inner concave head form top to bottom.
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