铰刀加工是我们精加工中最常见的一种,其高精度、高效率、好的粗糙度为铰刀的主要优点;
高速钢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 | 0.01 | 0.005 | 0.008 | 0.014 |
0.015 | 0.025 | |||
>6.0~10.0 | 0.012 | 0.006 | 0.01 | 0.017 |
0.018 | 0.03 | |||
>10.0~18.0 | 0.015 | 0.008 | 0.012 | 0.02 |
0.022 | 0.036 | |||
>18.0~30.0 | 0.017 | 0.009 | 0.016 | 0.025 |
0.028 | 0.044 | |||
>30.0~50.0 | 0.021 | 0.012 | 0.019 | 0.03 |
0.033 | 0.052 | |||
>50.0~80.0 | 0.025 | 0.014 | 0.022 | 0.036 |
0.039 | 0.062 | |||
>80.0~100.0 | 0.029 | 0.016 | 0.026 | 0.042 |
0.045 | 0.073 | |||
硬质合金铰刀的直径公差 (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 | 0.012 | 0.007 | 0.001 | 0.019 |
0.018 | 0.03 | |||
>6.0~10.0 | 0.015 | 0.009 | 0.014 | 0.023 |
0.022 | 0.036 | |||
>10.0~18.0 | 0.018 | 0.011 | 0.017 | 0.027 |
0.027 | 0.043 | |||
>18.0~30.0 | 0.021 | 0.013 | 0.021 | 0.033 |
0.033 | 0.052 | |||
>30.0~40.0 | 0.025 | 0.016 | 0.025 | 0.04 |
0.039 | 0.062 |