 
                | 加工方法 | 公差等级 | |||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |||
| 车 | 卧式车 立车 自动车 | 粗 | 
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| 细 | 
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| 精 | 
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| 铣 | 万能铣 | 粗 | 
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| 细 | 
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| 精 | 
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| 刨 | 龙门刨 牛头刨 | 粗 | 
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| 细 | 
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| 精 | 
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| 磨 | 无心磨 外圆磨 平磨 | 粗 | 
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| 细 | 
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| 精 | 
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| 研磨 | 机动研磨 手工研磨 | 粗 | 
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| 细 | 
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| 精 | ○ | ○ | 
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| 刮 | 
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| 细 | 
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| 精 | ○ | ○ | ○ | 
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| 主参数 L/mm | 公差等级 | |||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
| 公差值/μm | ||||||||||||
| ≤10 >10~16 >16~25 >25~40 >40~63 >63~100 >100~160 >160~250 >250~400 >400~630 >630~1000 >1000~1600 >1600~2500 >2500~4000 >4000~6300 >6300~10000 | 0.2 0.25 0.3 0.4 0.5 0.6 0.8 1 1.2 1.5 2 2.5 3 4 5 6 | 0.4 0.5 0.6 0.8 1 1.2 1.5 2 2.5 3 4 5 6 8 10 12 | 0.8 1 1.2 1.5 2 2.5 3 4 5 6 8 10 12 15 20 25 | 1.2 1.5 2 2.5 3 4 5 6 8 10 12 15 20 25 30 40 | 2 2.5 3 4 5 6 8 10 12 15 20 25 30 40 50 60 | 3 4 5 6 8 10 12 15 20 25 30 40 50 60 80 100 | 5 6 8 10 12 15 20 25 30 40 50 60 80 100 120 150 | 8 10 12 15 20 25 30 40 50 60 80 100 120 150 200 250 | 12 15 20 25 30 40 50 60 80 100 120 150 200 250 300 400 | 20 25 30 40 50 60 80 100 120 150 200 250 300 400 500 600 | 30 40 50 60 80 100 120 150 200 250 300 400 500 600 800 1000 | 60 80 100 120 150 200 250 300 400 500 600 800 1000 1200 1500 2000 | 
知识点词条:几何公差与加工方法的关系-各加工方法所能达到的直线度、平面度公差等级