介绍了一种新型的变断面管无模拉伸成形方法。
A new method form aking arbitrary section tube was introduced.
研究表明，合适的凸模锥角和压力对滑动轴承冲压成形具有很大的影响作用。
The study shows that appropriate punch Angle and pressure in the forming is important.
研究表明，合适的凸模锥角和压力对滑动轴承冲压成形具有很大的影响作用。
The study shows that appropriate punch Angle and pressure in the forming is important.
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