激光焊接薄壁钻头的显著特点是钻齿焊接强度高，不掉齿，可以用于无水干钻，便于实现大批量规模化生产。

Laser welding thin wall bit is characterized by high welding strength of bit teeth, no falling out of the teeth and mass production by non water dry drilling.

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鼓形齿接轴重量大，附加值高，国产化生产十分必要。

Since the drum gear coupling is heavy and has higher added values, it is necessary to localize the manufacture.

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