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US6120728A Method of making a component using a phased split die 失效
使用分相模具制造组件的方法

Method of making a component using a phased split die
摘要:
This invention relates to a device to compact parts with an undercut out of powder metal, including a pair of dies linearly moveable relative to one another and then phased, and an associated linearly displaceable pair of punches to produce said parts with said undercut.
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