介绍了采用液压式自动顶尖，提高轴类零件加工精度的方法，并收到了良好效果。

The method of lifting the precision of axial spare parts by using hydraulic auto top end is introduced. It has made good result.

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提出了一种新型的非圆轴数控加工系统，用于横截面为非圆形状的轴类零件加工。

A new kind of NC system for machining shafts with non-circular cross-section is proposed in this paper.

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通过车铣和车削两种加工方法的对比，重点研究了切削深度对微细轴类零件加工精度的影响问题。

Contrast the two machining method between turn-milling and turning, research the effect on machining precision of micro-shaft parts about cutting depth.

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