The drive gears adopt high quality alloy steel, after heat treatment and lapping finish.

传动齿轮采用优质合金钢，经热处理，研磨而成。

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Therefore, it is a new way for difficult-to-cut material to deep-hole finish machine by applying ultrasonic vibration machining technology to deep-hole lapping.

因此，将超声振动加工技术应用于深孔研磨加工中，为难加工材料的深孔精加工开辟了一条新的途径。

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Firstly, based on the analysis of deep-hole finish machining of titanium alloy, we presented ultrasonic vibration deep-hole lapping and designed ultrasonic vibration deep-hole lapping device.

首先，本文在分析了钛合金深孔精加工的基础上，提出了超声振动深孔研磨的加工方法并研制出相应的加工装置。

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