技能竞赛硬质合金铣刀加工45#无缝管切削参数表立铣刀：切削深度50丝6mm铣刀转速2000 F1000 8mm铣刀转速2000 F1200 10mm铣刀转速2000 F1300 12mm铣刀转速2000 F1400 球头刀：切削深度20丝R4mm铣刀转速2000 F1200 R5mm铣刀转速2000 F1300 R6mm铣刀转速2000 F1400 加工型腔直接下刀时F取30