第二節、金屬冷衝壓件公差(摘自JB4379-87)
基本尺寸 | 精度 等級 | 厚度尺寸範圍 | |||||
大於 | 至 | >0.1-1 | >1-3 | >3-6 | >6-10 | >10 | |
1 | 6 | A | ±0.05 | ±0.10 | ±0.15 | - | - |
B | ±0.10 | ±0.15 | ±0.20 | - | - | ||
C | ±0.20 | ±0.25 | ±0.30 | - | - | ||
D | ±0.40 | ±0.50 | ±0.60 | - | - | ||
6 | 18 | A | ±0.10 | ±0.13 | ±0.15 | ±0.20 | - |
B | ±0.20 | ±0.25 | ±0.25 | ±0.30 | - | ||
C | ±0.30 | ±0.40 | ±0.50 | ±0.60 | - | ||
D | ±0.60 | ±0.80 | ±1.00 | ±1.20 | - | ||
18 | 50 | A | ±0.12 | ±0.15 | ±0.20 | ±0.25 | ±0.35 |
B | ±0.25 | ±0.30 | ±0.35 | ±0.40 | ±0.50 | ||
C | ±0.50 | ±0.60 | ±0.70 | ±0.80 | ±1.00 | ||
D | ±1.00 | ±1.20 | ±1.40 | ±1.60 | ±2.00 | ||
基本尺寸 | 精度 等級 | 厚度尺寸範圍 | |||||
大於 | 至 | >0.1-1 | >1-3 | >3-6 | >6-10 | >10 | |
50 | 180 | A | ±0.15 | ±0.20 | ±0.25 | ±0.30 | ±0.40 |
B | ±0.30 | ±0.35 | ±0.45 | ±0.55 | ±0.65 | ||
C | ±0.60 | ±0.70 | ±0.90 | ±1.10 | ±1.30 | ||
D | ±1.20 | ±1.40 | ±1.80 | ±2.20 | ±2.60 | ||
180 | 400 | A | ±0.20 | ±0.25 | ±0.30 | ±0.40 | ±0.50 |
B | ±0.40 | ±0.50 | ±0.60 | ±0.80 | ±1.00 | ||
C | ±0.80 | ±1.00 | ±1.20 | ±1.60 | ±2.00 | ||
D | ±1.40 | ±1.60 | ±2.00 | ±2.60 | ±3.20 | ||
400 | 1000 | A | ±0.35 | ±0.40 | ±0.45 | ±0.50 | ±0.70 |
B | ±0.70 | ±0.80 | ±0.90 | ±1.00 | ±1.40 | ||
C | ±1.40 | ±1.60 | ±1.80 | ±2.00 | ±2.80 | ||
D | ±2.40 | ±2.60 | ±2.80 | ±3.20 | ±3.60 | ||
1000 | 3150 | A | ±0.60 | ±0.70 | ±0.80 | ±0.85 | ±0.90 |
B | ±1.20 | ±1.40 | ±1.60 | ±1.70 | ±1.80 | ||
C | ±2.40 | ±2.80 | ±3.00 | ±3.20 | ±3.60 | ||
D | ±3.20 | ±3.40 | ±3.60 | ±3.80 | ±4.00 |
基本尺寸 | 精度 等級 | 厚度尺寸範圍 | |||||
大於 | 至 | >0.1-1 | >1-3 | >3-6 | >6-10 | >10 | |
1 | 6 | A,B | ±0.20 | ±0.30 | ±0.40 | - | - |
C,D | ±0.40 | ±0.50 | ±0.60 | - | - | ||
6 | 18 | A,B | ±0.40 | ±0.50 | ±0.50 | ±0.60 | - |
C,D | ±0.60 | ±0.80 | ±1.00 | ±1.20 | - | ||
18 | 50 | A,B | ±0.50 | ±0.60 | ±0.70 | ±0.80 | ±1.00 |
C,D | ±1.00 | ±1.20 | ±1.40 | ±1.60 | ±2.00 | ||
50 | 180 | A,B | ±0.60 | ±0.70 | ±0.90 | ±1.10 | ±1.30 |
C,D | ±1.20 | ±1.40 | ±1.80 | ±2.20 | ±2.60 | ||
180 | 400 | A,B | ±0.80 | ±1.00 | ±1.20 | ±1.60 | ±2.00 |
C,D | ±1.60 | ±2.00 | ±2.40 | ±3.20 | ±4.00 | ||
400 | 1000 | A,B | ±1.40 | ±1.60 | ±1.80 | ±2.00 | ±2.80 |
C,D | ±2.80 | ±3.20 | ±3.60 | ±4.00 | ±5.60 |
精度等級 | 短邊長度範圍 | ||||||
≤6 | >6-18 | >18-50 | >50-180 | >180-400 | >400-1000 | >1000-3150 | |
A | ±1º00´ | ±0º50´ | ±0º30´ | ±0º20´ | ±0º10´ | ±0º05´ | ±0º05´ |
B | ±1º30´ | ±1º00´ | ±0º50´ | ±0º25 | ±0º15´ | ±0º10´ | ±0º10´ |
C,D | ±3º00´ | ±2º30´ | ±2º00´ | ±1º00´ | ±0º30´ | ±0º20´ | ±0º20´ |
基本尺寸 | 零件的最大長度L | ||
≤300 | >300-600 | >600 | |
極限偏差 | |||
≤50 | ±0.5 | ±0.8 | ±1.2 |
>50 | ±0.8 | ±1.2 | ±2.0 |
基本尺寸 | 精度 等級 | 厚度尺寸範圍 | |||||
大於 | 至 | >0.1-1 | >1-3 | >3-6 | >6-10 | >10 | |
1 | 6 | A | ±0.10 | ±0.20 | ±0.30 | - | - |
B | ±0.20 | ±0.35 | ±0.40 | - | - | ||
C | ±0.40 | ±0.50 | ±0.60 | - | - | ||
D | ±0.80 | ±1.00 | ±1.20 | - | - | ||
6 | 18 | A | ±0.20 | ±0.25 | ±0.30 | ±0.40 | - |
B | ±0.40 | ±0.50 | ±0.50 | ±0.60 | - | ||
C | ±0.60 | ±0.80 | ±1.00 | ±1.20 | - | ||
D | ±1.20 | ±1.60 | ±2.00 | ±2.40 | - | ||
18 | 50 | A | ±0.25 | ±0.30 | ±0.40 | ±0.50 | ±0.70 |
B | ±0.50 | ±0.60 | ±0.70 | ±0.80 | ±1.00 | ||
C | ±1.00 | ±1.20 | ±1.40 | ±1.60 | ±2.00 | ||
D | ±2.00 | ±2.40 | ±2.80 | ±3.20 | ±4.00 | ||
50 | 180 | A | ±0.30 | ±0.40 | ±0.50 | ±0.60 | ±0.80 |
B | ±0.60 | ±0.70 | ±0.90 | ±1.10 | ±1.30 | ||
C | ±1.20 | ±1.40 | ±1.80 | ±2.20 | ±2.60 | ||
D | ±2.40 | ±2.80 | ±3.60 | ±4.40 | ±5.20 | ||
180 | 400 | A | ±0.40 | ±0.60 | ±0.60 | ±0.80 | ±1.00 |
B | ±0.80 | ±1.00 | ±1.20 | ±1.60 | ±2.00 | ||
C | ±1.60 | ±2.00 | ±2.40 | ±3.20 | ±4.00 | ||
D | ±2.80 | ±3.20 | ±4.00 | ±5.20 | ±6.20 | ||
400 | 1000 | A | ±0.70 | ±0.80 | ±0.90 | ±1.00 | ±0.70 |
B | ±1.40 | ±1.60 | ±1.80 | ±2.00 | ±2.80 | ||
C | ±2.80 | ±3.20 | ±3.60 | ±4.00 | ±5.60 | ||
D | ±4.80 | ±5.20 | ±5.60 | ±6.40 | ±7.20 | ||
1000 | 3150 | A | ±1.20 | ±1.40 | ±1.60 | ±1.70 | ±1.80 |
B | ±2.40 | ±2.80 | ±3.20 | ±3.40 | ±3.60 | ||
C | ±4.80 | ±5.60 | ±6.00 | ±6.40 | ±7.20 | ||
D | ±6.40 | ±6.80 | ±7.20 | ±7.60 | ±8.00 |
彎曲角度種類 | 精 度 等 級 | |||
A | B | C | D | |
直角彎曲 | ±1º00´ | ±1º30´ | ±1º30´ | ±2º00´ |
其他角度彎曲 | ±1º00´ | ±1º30´ | ±2º00´ | ±3º00´ |
材料厚度 | 拉深深度範圍 | |||||
≤18 | >18-50 | >50-120 | >120-180 | >180-260 | >260-500 | |
≤1 | ±0.3 | ±0.5 | ±0.8 | ±1.0 | ±1.4 | ±1.6 |
>1-2 | ±0.4 | ±0.6 | ±1.0 | ±1.2 | ±1.6 | ±1.8 |
>2-4 | ±0.5 | ±0.8 | ±1.2 | ±1.4 | ±1.8 | ±2.0 |
>4-6 | ±0.6 | ±1.0 | ±1.4 | ±1.6 | ±2.0 | - |
翻邊、加強筋(窩)高度 | ≤6 | >6-10 | >10-18 | >18-30 | >30 |
極限偏差 | ±1.0 -0.5 | ±1.2 -1.0 | ±1.5 -1.0 | ±2.5 -1.0 | ±3.0 -1.0 |
圓板半徑 | ≤3 | >3-6 | >6-10 | >10-18 | >18-30 | >30 |
極限偏差 | +1 0 | +1.5 0 | +2.5 0 | +3 0 | +4 0 | +5 0 |
孔中心距、孔組間距a1 | 拉深深度範圍 | |||
A | B | C | D | |
≤18 | ±0.15 | ±0.20 | ±0.30 | ±0.40 |
>18-120 | ±0.20 | ±0.25 | ±0.40 | ±0.50 |
>120-260 | ±0.25 | ±0.30 | ±0.50 | ±0.60 |
>260-500 | ±0.30 | ±0.50 | ±0.60 | ±0.70 |
>500 | ±0.50 | ±0.60 | ±0.70 | ±0.80 |
孔級間距a2 | 精度等級 | |||
A | B | C | D | |
≤120 | ±0.40 | ±0.6 | ±0.8 | ±1.0 |
>120-260 | ±0.7 | ±0.8 | ±1.0 | ±1.2 |
>260-500 | ±1.0 | ±1.2 | ±1.4 | ±1.6 |
>500-1200 | ±1.3 | ±1.6 | ±1.8 | ±2.0 |
>1200 | ±1.6 | ±2.0 | ±2.2 | ±2.5 |