可转位浅孔钻切削用量的选择

被加工材料布氏硬度
HBS切削速度
(m/mm)钻孔直径(mm)
18.5~20.921.0~25.926.0~30.931.0~41.942.0~56.0
进给量(mm/r)易切削钢和碳钢180~2751000.06~0.150.09~0.150.09~0.160.09~0.170.10~0.202000.09~0.160.10~0.180.09~0.250.09~0.300.10~0.303000.10~0.180.11~0.180.10~0.250.10~0.320.10~0.32碳钢淬火220~4501000.09~0.140.09~0.140.08~0.140.08~0.140.10~0.202000.10~0.160.10~0.160.09~0.170.10~0.200.10~0.283000.11~0.170.11~0.170.10~0.180.10~0.220.10~0.30低合金钢淬火220~4501000.09~0.150.10~0.170.09~0.170.09~0.200.11~0.212000.11~0.180.12~0.200.10~0.240.10~0.200.11~0.28不锈钢(奥氏体)150~2753000.11~0.190.12~0.200.11~0.250.13~0.270.12~0.30高合金钢、退火150~2501000.12~0.170.12~0.180.10~0.200.09~0.250.10~0.202000.12~0.200.13~0.220.10~0.250.12~0.300.10~0.30300 0.12~0.220.12~0.230.11~0.260.12~0.310.12~0.32高合金钢
工具钢≥3601000.08~0.140.06~0.140.09~0.160.09~0.170.09~0.182000.09~0.160.09~0.160.10~0.200.10~0.200.10~0.20低拉力强度
灰铸铁≤2301000.07~0.250.07~0.250.07~0.300.07~0.350.07~0.352000.07~0.300.07~0.300.07~0.350.07~0.400.07~0.403000.07~0.300.07~0.300.07~0.350.07~0.400.07~0.40高拉力强度
灰铸铁≥2301000.07~0.250.07~0.30>0.07~0.300.07~0.350.07~0.35200 0.07~0.300.07~0.300.07~0.350.07~0.400.07~0.40