一般浮动镗刀都用于精加工方面。我厂张云生同志发扬了工人阶级敢想敢干的精神,大胆革新,在浮动镗刀的基础上,试制成功扩孔粗镗用的浮动镗刀,解决了加工中遇到的困难。例如:在加工C630车床的尾座套时,按图纸要求,需要把钻了φ32× General floating boring tools are used for finishing. Comrade Zhang Yunsheng of our factory carried forward the spirit that the working class dare to dare to dare to do and made bold innovations. Based on the floating boring tool, the floating boring tool for reaming and rough boring was trial-produced, which solved the difficulties encountered in the processing. For example: in the processing of tailstock sets C630 lathe, according to the drawing requirements, the need to drill a φ32 ×