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这种组合钻可加工φ50mm以上的高精度孔,且一次达到粗镗效果,效率很高。本文结合研制中的经验体会,对该组合钻作了较全面的阐述。
This combination of drilling can be processed more than φ50mm high precision hole, and once reached the rough boring effect, high efficiency. In this paper, combined with the experience of the development of the combination of drilling made a more comprehensive exposition.