铰孔切削用量选择参考表.doc

铰刀铰削切削用量选择表高速钢及硬质合金机铰刀铰孔时的进给量(mm/r)刀具材料加工材料铰刀直径5 铰刀直径510 铰刀直径1020 铰刀直径2030 铰刀直径3040 铰刀直径4060铰刀直径6080 高速钢铰刀钢b900MPa0.20.5 0.40.9 0.651.4 0.81.8 0.952.1 1.32.8 1.53.2 钢b900MPa0.150.350.350.70.551.20.65-1.50.8-1.81.0-2.31.2-3.2铸铁铜及铝合金HB1700.61.21.02.01.53.02.0-4.02.5-5.03.2-6.43.75-7.5铸铁HB1700.40.80.651.31.02.01.3-2.61.6-3.22.1-4.22.6-5.0硬质合金铰刀未淬硬钢0.350.50.40.60.5-0.70.6-0.80.7-0.90.9-1.2淬硬钢0.250.350.30.40.35-0.450.4-0.5铸铁HB1700.91.41.01.51.2-1.81.3-2.01.6-2.42.0-3.0铸铁HB1700.71.10.81.20.9-1.41.0-1.51.25-1.81.5-3.2注:1.表内进给量用于加工通孔，加工盲孔时进给量应取为0.20.5mm/r。 2.最大进给量用于在钻或扩孔之后，精铰孔之前的粗铰孔。 3.中等进给量用于：1）粗铰之后精铰H7级精度的孔；2）精镗之后精铰H7级精度的孔；3）对硬质合金铰刀，用于精铰H8H9级精度的孔。 4.最小进给量用于：1）抛光或珩磨之前的精铰孔；2）用一把铰刀铰H8H9级精度的孔；3）对硬质合金铰刀，用于精铰H7级精度的孔。高速钢铰刀粗铰削的切削速度m/min(粗铰）刀具规格(mm)结构钢、铬钢、镍铬钢f(mm/r)0.50.60.70.811.21.41.61.822.22.533.54d0=5p=0.052421.319.317.6d0=10p=0.07521.619.217.415.913.812.3d0=15p=0.117.415.314.112.911.19.99.28.27.77.1d0=20p=0.12518.216.114.713.511.610.39.38.67.97.4d0=25p=0.12516.614.813.412.210.69.48.57.87.26.7d0=30p=0.12512.911.29.98.98.27.67.16.66.25.45.14.6d0=40p=0.1512.110.49.18.47.57.26.76.25.75.14.74.2d0=50p=0.1511.49.98.887.36.76.35.95.44.84.44d0=60p=0.210.79.28.27.46.86.35.95.55.14.54.13.7d0=80p=0.259.88.57.56.86.25.85.45.14.74.13.83.4刀具规格(mm)灰铸铁190HBf(mm/r)0.50.60.70.811.21.41.61.822.5345d0=5p=0.0518.917.215.914.913.312.211.310.69.99.4d0=10p=0.07517.916.315.114.112.611.510.79.48.9d0=15p=0.115.914.513.412.611.210.39.58.98.48d0=20p=0.12516.515.11413.111.710.79.99.28.78.37.46.7d0=25p=0.12514.713.412.411.310.49.58.88.27.77.46.66d0=30p=0.12512.110.89.89.18.587.66.86.25.44.8d0=40p=0.1511.510.39.48.78.17.67.36.55.95.14.6d0=50p=0.1511.5109.28.57.97.57.16.35.854.5d0=60p=0.210.79.68.78.17.67.16.86.15.54.84.3d0=80p=0.25108.98.17.57.16.76.35.65.24.54高速钢铰刀铰削的切削速度m/min(精铰)结构碳钢、铬钢、镍铬钢灰铸铁、可锻铸铁、铜合金精度等级 加工表面粗糙度Ra(m) 切削速度(m/min)灰铸铁可锻铸铁铜合金H7H83.21.64581515H7H81.60.823488