In this project we have carried out a research on the buried arc automatic welding process for large welded gears with hard tooth surface.

对大型硬齿面焊接齿轮的埋弧自动焊工艺进行了探索和实施。

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Ti, Al)N super hard films were deposited by multi arc ion plating.

采用多弧离子镀技术沉积氮化钛铝超硬反应膜。

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It is believed that it is of great importance to the study of short arc machining technique, and is valuable to the study of the machining of the hard surfacing material as well.

该机床的成功研制为短电弧加工技术的深入研究奠定了基础，同时对硬面材料加工研究具有一定的参考价值。

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