满意答案
1个回答
-
擅长：
附表1 高速钢麻花钻、扩孔钻的直径公差(h8) (mm) 附表2 高速钢机用铰刀的直径公差（GB1133－84） (mm) 铰刀直径 直径的极限偏差 H7级精度铰刀 H8级精度铰刀 H9级精度铰刀 ＞5.3～6 +0.010 +0.005 +0.015 +0.008 +0.025 +0.014 ＞6～10 +0.012 +0.006 +0.018 +0.010 +0.030 +0.017 ＞10～18 +0.015 +0.008 +0.022 +0.012 +0.036 +0.020 ＞18～30 +0.017 +0.009 +0.028 +0.016 +0.044 +0.025 ＞30～50 +0.021 +0.012 +0.033 +0.019 +0.052 +0.030 ＞50～80 +0.025 +0.014 +0.039 +0.022 +0.062 +0.036 ＞80～100 +0.029 +0.016 +0.045 +0.026 +0.073 +0.042 钻头直径 上偏差 下偏差 ＞3～6 0 －0.018 ＞6～10 －0.022 ＞10～18 －0.027 ＞18～30 －0.033 ＞30～50 －0.039 ＞50～80 －0.046 ＞80～100 －0.054 附表3 硬质合金机用铰刀的直径公差 (mm) 铰刀直径 直径的极限偏差 H7级精度铰刀 H8级精度铰刀 H9级精度铰刀 ＞5.3～6 +0.012 +0.007 +0.018 +0.001 +0.030 +0.019 ＞6～10 +0.015 +0.009 +0.022 +0.014 +0.036 +0.023 ＞10～18 +0.018 +0.011 +0.027 +0.017 +0.043 +0.027 ＞18～30 +0.021 +0.013 +0.033 +0.021 +0.052 +0.033 ＞30～40 +0.025 +0.016 +0.039 +0.025 +0.062 +0.04058人赞同 2014-01-08发表于
