鉸孔切削用量選擇參考表

1、鉸刀鉸削切削用量選擇表高速鋼及硬質(zhì)合金機(jī)鉸刀鉸孔時(shí)的進(jìn)給量mm/r鉸刀直徑鉸刀直徑鉸刀直徑鉸刀直徑鉸刀直徑鉸刀直徑鉸刀直徑刀具材料加工材料<55? 1010?2020 ? 3030 ? 4040 ? 6060 ? 80鋼cb <0.2 ? 0.50.4?0.65?0.8 ? 1.80.95 ?1.3 ? 2.81.5?900MPa0.91.42.13.2鋼Cb >0.15 ?0.35?°.70.55?1.21.2-3.2900MPa0.35高速鋼鉸刀鑄鐵銅及鋁合金HB0.6 ? 1.21.0? 2.01.5?3.02.5-5.03.2-6.4<170鑄鐵HB

2、>0.4 ? 0.80.65?1.31.0?2.01.3-2.61.6-3.22.1- 4.22.6-5.0170未淬硬鋼0.35?°.50.4?0.60.25 ?淬硬鋼0.350.3?0.4硬質(zhì)合金鉸鑄鐵HB <0.9? 1.41.0?1.51.3-2.02.0-3.0刀170鑄鐵HB >0.7? 1.10.8?1.21.5-3.2170注:1.表內(nèi)進(jìn)給量用于加工通孔，加工盲孔時(shí)進(jìn)給量應(yīng)取為0.2? 0.5mm/r2最大進(jìn)給量用于在鉆或擴(kuò)孔之后，精鉸孔之前的粗鉸孔。3?中等進(jìn)給量用于:1粗鉸之后精鉸H7級(jí)精度的孔;2精鏜之后精鉸 H7級(jí)精度的孔；3 對(duì)硬質(zhì)合金鉸刀

3、，用于精鉸H8? H9級(jí)精度的孔。4最小進(jìn)給量用于：1拋光或珩磨之前的精鉸孔;2用一把鉸刀鉸 H8? H9級(jí)精度的孔；3 對(duì)硬質(zhì)合金鉸刀用于精鉸H7級(jí)精度的孔。刀具規(guī)格結(jié)構(gòu)鋼、鉻鋼、鎳鉻鋼f(mm/r)(mm)<0.50.60.70.811.21.41.61.822.22.533.54d0=5 ap=0.052421.319.317.6d0=10 ap=0.07521.619.217.415.913.812.3d0=15 ap=0.117.415.314.112.911.19.99.28.27.77.1d0=20 ap=0.12518.216.114.713.511.610.39.38.

4、67.97.4d0=25 ap=0.12516.614.813.412.210.69.48.57.87.26.7d0=30 ap=0.12512.911.29.98.98.27.67.16.66.25.45.14.6dO=4O ap=0.1512.110.49.18.47.57.26.76.25.75.14.74.2d0=50 ap=0.1511.49.98.887.36.76.35.95.44.84.44d0=60 ap=0.210.79.28.27.46.86.35.95.55.14.54.13.7d0=80 ap=0.259.88.57.56.86.25.85.45.14.74.13.8

5、3.4刀具規(guī)格灰鑄鐵 190HBf(mm/r)(mm)<0.50.60.70.811.21.41.61.822.5345d0=5 a18.917.215.914.913.312.211.310.69.99.4高速鋼鉸刀粗鉸削的切削速度m/min(粗鉸)p=0.05dO=1O ap=0.07517.916.315.114.112.611.510.79.48.9d0=15 ap=0.115.914.513.412.611.210.39.58.98.48d0=20 ap=0.12516.515.11413.111.710.79.99.28.78.37.46.7d0=25 ap=0.12514.

6、713.412.411.310.49.58.88.27.77.46.66d0=30 ap=0.12512.110.89.89.18.587.66.86.25.44.8dO=4O ap=0.1511.510.39.48.78.17.67.36.55.95.14.6d0=50 ap=0.1511.5109.28.57.97.57.16.35.854.5d0=60 ap=0.210.79.68.78.17.67.16.86.15.54.84.3d0=80 ap=0.25108.98.17.57.16.76.35.65.24.54高速鋼鉸刀鉸削的切削速度m/min 精鉸結(jié)構(gòu)碳鋼、鉻鋼、鎳鉻鋼灰鑄鐵、可鍛