冲裁件
冲裁最小尺寸
注：1．t为材料厚度。
2．若冲裁件结构无特殊要求，应采用大于表中所列数值。
3．当采用整体凹模时，冲裁件轮廓应避免清角。
|
材料
|
b
|
h
|
a
|
s、d
|
c、m
|
e、l
|
α≥90°(R1，R3)
|
α＜90°(R2，R4)
|
|
钢σb＞882MPa
|
1.9t
|
1.6t
|
1.3t
|
1.4t
|
1.2t
|
1.1t
|
0.8t
|
1.1t
|
|
钢σb＝490～882MPa
|
1.7t
|
1.4t
|
1.1t
|
1.2t
|
1.0t
|
0.9t
|
0.6t
|
0.9t
|
|
钢σb＜490MPa
|
1.5t
|
1.2t
|
0.9t
|
1.0t
|
0.8t
|
0.7t
|
0.4t
|
0.7t
|
|
黄铜、铜、铝、锌
|
1.3t
|
1.0t
|
0.7t
|
0.8t
|
0.6t
|
0.5t
|
0.2t
|
0.5t
|
孔的位置安排
|
最小距离
|
|
c≥0.8t
|
|
c≥1.3t
|
|
c≥t
|
|
c≥0.7t
|
|
c≥1.2t
|
|
c≥1.5t
|
|
k≥R+d/2
|
|
d＜D1-2R，D＞D1+2t+2R1+d1
|
|
h＞2d+t
|
最小可冲孔眼的尺寸(为板厚的倍数)
注：当板厚＜4mm时可以冲出垂直孔，而当板厚＞4～5mm时，则孔的每边须做出6°～10°的斜度。
|
材料
|
圆孔直径
|
方孔边长
|
短边(径)长
|
|
长方孔
|
长圆孔
|
|
钢(σb＞686MPa)
|
1.5
|
1.3
|
1.2
|
1.1
|
|
钢(σb＞490～686MPa)
|
1.3
|
1.2
|
1
|
0.9
|
|
钢(σb≤490MPa)
|
1
|
0.9
|
0.8
|
0.7
|
|
黄铜、铜
|
0.9
|
0.8
|
0.7
|
0.6
|
|
铝、锌
|
0.8
|
0.7
|
0.6
|
0.5
|
|
胶木、胶布板
|
0.7
|
0.6
|
0.5
|
0.4
|
|
纸板
|
0.6
|
0.5
|
0.4
|
0.3
|
精冲件的最小圆角半径
注：表中数值适用于抗拉强度低于441MPa的材料。强度高于此值应按比例增加。
|
料厚/mm
|
工件轮廓角度α
|
|
30°
|
60°
|
90°
|
120°
|
|
1
|
0.4
|
0.2
|
0.1
|
0.05
|
|
2
|
0.9
|
0.45
|
0.23
|
0.15
|
|
3
|
1.5
|
0.75
|
0.35
|
0.25
|
|
4
|
2
|
1
|
0.5
|
0.35
|
|
5
|
2.6
|
1.3
|
0.7
|
0.5
|
|
6
|
3.2
|
1.6
|
0.85
|
0.65
|
|
8
|
4.6
|
2.5
|
1.3
|
1
|
|
10
|
7
|
4
|
2
|
1.5
|
|
12
|
10
|
6
|
3
|
2.2
|
|
14
|
15
|
9
|
4.5
|
3
|
|
15
|
18
|
11
|
6
|
4
|
各种材料精冲时的尺寸极限
注：1．薄料取上限，厚料取下限。
2．t为材料厚度。
|
材料的强度σb/MPa
|
|
147
|
294
|
441
|
588
|
|
(0.25～0.35)t
|
(0.35～0.45)t
|
(0.5～0.55)t
|
(0.7～0.75)t
|
|
(0.3～0.4)t
|
(0.4～0.45)t
|
(0.55～0.65)t
|
(0.75～0.8)t
|
|
(0.2～0.3)t
|
(0.3～0.4)t
|
(0.45～0.5)t
|
(0.6～0.65)t
|
|
(0.3～0.4)t
|
(0.45～0.55)t
|
(0.65～0.7)t
|
(0.85～0.9)t
|
冲裁件最小许可宽度与材料的关系
|
材料
|
最小值
|
|
B1
|
B2
|
B3
|
|
中等硬度的钢
|
1.25t
|
0.8t
|
1.5t
|
|
高碳钢和合金钢
|
1.65t
|
1.1t
|
2t
|
|
有色合金
|
t
|
0.6t
|
1.2t
|
精冲件最小相对槽宽e/t
注：最小槽边距fmin＝(1.1～1.2)emin。
|
料厚t/mm
|
槽长l/mm
|
|
2
|
4
|
6
|
8
|
10
|
15
|
20
|
40
|
60
|
80
|
100
|
150
|
200
|
|
1
|
0.69
|
0.78
|
0.82
|
0.84
|
0.88
|
0.94
|
0.97
|
-
|
-
|
-
|
-
|
-
|
-
|
|
1.5
|
0.62
|
0.72
|
0.75
|
0.78
|
0.82
|
0.87
|
0.9
|
-
|
-
|
-
|
-
|
-
|
-
|
|
2
|
0.58
|
0.67
|
0.7
|
0.73
|
0.77
|
0.83
|
0.86
|
1
|
-
|
-
|
-
|
-
|
-
|
|
3
|
-
|
0.62
|
0.65
|
0.68
|
0.71
|
0.76
|
0.79
|
0.92
|
0.98
|
-
|
-
|
-
|
-
|
|
4
|
-
|
0.6
|
0.63
|
0.65
|
0.68
|
0.74
|
0.76
|
0.88
|
0.94
|
0.97
|
1
|
-
|
-
|
|
5
|
-
|
-
|
0.62
|
0.64
|
0.67
|
0.73
|
0.75
|
0.86
|
0.92
|
0.95
|
0.97
|
-
|
-
|
|
8
|
-
|
-
|
-
|
0.63
|
0.66
|
0.71
|
0.73
|
0.85
|
0.9
|
0.93
|
0.95
|
1
|
-
|
|
10
|
-
|
-
|
-
|
-
|
-
|
0.68
|
0.71
|
0.8
|
0.85
|
0.87
|
0.88
|
0.93
|
0.96
|
|
12
|
-
|
-
|
-
|
-
|
-
|
-
|
0.7
|
0.79
|
0.84
|
0.86
|
0.87
|
0.92
|
0.95
|
|
15
|
-
|
-
|
-
|
-
|
-
|
-
|
0.69
|
0.78
|
0.83
|
0.85
|
0.86
|
0.9
|
0.93
|
冲裁间隙
|
材料牌号
|
料厚/mm
|
合理间隙(径向双面)
|
|
最小
|
最大
|
|
8
|
0.05
|
无间隙
|
无间隙
|
|
8
|
0.1
|
无间隙
|
无间隙
|
|
8
|
0.2
|
无间隙
|
无间隙
|
|
50
|
0.2
|
无间隙
|
无间隙
|
|
8
|
0.22
|
无间隙
|
无间隙
|
|
8
|
0.3
|
无间隙
|
无间隙
|
|
50
|
0.3
|
无间隙
|
无间隙
|
|
8
|
0.4
|
无间隙
|
无间隙
|
|
65Mn
|
0.4
|
无间隙
|
无间隙
|
|
8
|
0.5
|
8%
|
12%
|
|
65Mn
|
0.5
|
8%
|
12%
|
|
35
|
0.5
|
8%
|
12%
|
|
8
|
0.6
|
8%
|
12%
|
|
8
|
0.7
|
9%
|
13%
|
|
65Mn
|
0.7
|
9%
|
13%
|
|
09Mn
|
0.7
|
9%
|
13%
|
|
8
|
0.8
|
9%
|
13%
|
|
20
|
0.8
|
9%
|
13%
|
|
65Mn
|
0.8
|
9%
|
13%
|
|
09Mn
|
0.8
|
9%
|
13%
|
|
Q345
|
0.8
|
9%
|
13%
|
|
Q235
|
0.9
|
10%
|
14%
|
|
8
|
0.9
|
10%
|
14%
|
|
65Mn
|
0.9
|
10%
|
14%
|
|
09Mn
|
0.9
|
10%
|
14%
|
|
8
|
1
|
10%
|
14%
|
|
09Mn
|
1
|
10%
|
14%
|
|
8
|
1.2
|
11%
|
15%
|
|
09Mn
|
1.2
|
11%
|
15%
|
|
Q235
|
1.2
|
11%
|
15%
|
|
Q235
|
1.5
|
11%
|
15%
|
|
8
|
1.5
|
11%
|
15%
|
|
20
|
1.5
|
11%
|
15%
|
|
09Mn
|
1.5
|
11%
|
15%
|
|
16Mn
|
1.5
|
11%
|
15%
|
|
8
|
1.75
|
12%
|
18%
|
|
Q235
|
1.75
|
12%
|
18%
|
|
Q235
|
2
|
12%
|
18%
|
|
8
|
2
|
12%
|
18%
|
|
10
|
2
|
12%
|
18%
|
|
20
|
2
|
13%
|
19%
|
|
09Mn
|
2
|
12%
|
18%
|
|
16Mn
|
2
|
13%
|
19%
|
|
50
|
2.1
|
13%
|
19%
|
|
Q235
|
2.1
|
13%
|
19%
|
|
Q235
|
2.5
|
14%
|
20%
|
|
8
|
2.5
|
14%
|
20%
|
|
20
|
2.5
|
15%
|
21%
|
|
09Mn
|
2.5
|
14%
|
20%
|
|
Q345
|
2.5
|
15%
|
21%
|
|
8
|
2.75
|
14%
|
20%
|
|
Q235
|
3
|
15%
|
21%
|
|
8
|
3
|
15%
|
21%
|
|
20
|
3
|
16%
|
22%
|
|
09Mn
|
3
|
15%
|
21%
|
|
Q345
|
3
|
16%
|
22%
|
|
Q235
|
3.5
|
15%
|
21%
|
|
Q235
|
4
|
16%
|
22%
|
|
8
|
4
|
16%
|
22%
|
|
20
|
4
|
17%
|
23%
|
|
Q345
|
4
|
17%
|
23%
|
|
Q235
|
4.5
|
16%
|
22%
|
|
8
|
4.5
|
16%
|
22%
|
|
20
|
4.5
|
17%
|
23%
|
|
Q345
|
4.5
|
15%
|
21%
|
|
Q235
|
5
|
17%
|
23%
|
|
8
|
5
|
17%
|
23%
|
|
20
|
5
|
18%
|
24%
|
|
Q345
|
5
|
15%
|
21%
|
|
8
|
5.5
|
17%
|
23%
|
|
Q345
|
5.5
|
14%
|
20%
|
|
Q235
|
6
|
18%
|
24%
|
|
8
|
6
|
18%
|
24%
|
|
20
|
6
|
19%
|
25%
|
|
Q345
|
6
|
14%
|
20%
|
|
Q345
|
6.5
|
14%
|
20%
|
|
Q345
|
8
|
15%
|
21%
|
|
Q345
|
12
|
11%
|
15%
|
冲裁时合理搭边值
注：非金属材料(皮革、纸板、石棉等)的搭边值应比金属大1.5～2倍。
|
料厚/mm
|
手送料
|
自动送料
|
|
圆形
|
非圆形
|
往复送料
|
a/mm
|
a1/mm
|
|
a/mm
|
a1/mm
|
a/mm
|
a1/mm
|
a/mm
|
a1/mm
|
|
≤1
|
1.5
|
1.5
|
2
|
1.5
|
3
|
2
|
-
|
-
|
|
＞1～2
|
2
|
1.5
|
2.5
|
2
|
3.5
|
2.5
|
3
|
2
|
|
＞2～3
|
2.5
|
2
|
3
|
2.5
|
4
|
3.5
|
-
|
-
|
|
＞3～4
|
3
|
2.5
|
3.5
|
3
|
5
|
4
|
4
|
3
|
|
＞4～5
|
4
|
3
|
5
|
4
|
6
|
5
|
5
|
4
|
|
＞5～6
|
5
|
4
|
6
|
5
|
7
|
6
|
6
|
5
|
|
＞6～8
|
6
|
5
|
7
|
6
|
8
|
7
|
7
|
6
|
|
＞8
|
7
|
6
|
8
|
7
|
9
|
8
|
8
|
7
|
