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常見螺紋不同材料厚度下的預沖孔徑和上﹑下模尺寸如下表所示
常見螺紋不同材料厚度下的預沖孔徑和上﹑下模尺寸如下表所示:
螺紋規格 |
材料厚度 |
抽芽高度 |
上沖頭(d) |
下模(D) |
預沖孔(d1) |
螺紋規格 |
材料厚度 |
抽芽高度 |
上沖頭(d) |
下模(D) |
預沖孔 |
M3 |
T=0.6 |
1.5 |
2.6 |
3.6 |
1.4 |
4#-40 |
T=0.6 |
1.9 |
2.4 |
3.2 |
1.2 |
T=0.8 |
3.8 |
1.5 |
T=0.8 |
3.4 |
1.4 |
||||||
T=1.0 |
4.0 |
1.6 |
T=1.0 |
3.6 |
1.5 |
||||||
T=1.2 |
4.2 |
1.7 |
T=1.2 |
3.8 |
1.6 |
||||||
T=1.5 |
|
2.5 |
T=1.5 |
4.2 |
1.8 |
||||||
M3.5 |
T=0.6 |
1.8 |
3.2 |
4.0 |
1.6 |
6#-32 |
T=0.6 |
2.4 |
3.2 |
3.8 |
1.4 |
T=0.8 |
4.2 |
1.8 |
T=0.8 |
4.0 |
1.5 |
||||||
T=1.0 |
4.4 |
2.0 |
T=1.0 |
4.2 |
1.6 |
||||||
T=1.2 |
4.6 |
2.2 |
T=1.2 |
4.4 |
1.8 |
||||||
T=1.5 |
4.8 |
2.4 |
T=1.5 |
4.6 |
2.0 |
||||||
M4 |
T=0.6 |
2.1 |
3.6 |
4.2 |
1.6 |
8#-32 |
T=0.6 |
2.4 |
3.6 |
4.6 |
1.6 |
T=0.8 |
4.4 |
1.8 |
T=0.8 |
4.8 |
1.8 |
||||||
T=1.0 |
4.6 |
2.0 |
T=1.0 |
5.0 |
2.0 |
||||||
T=1.2 |
4.8 |
2.2 |
T=1.2 |
5.2 |
2.2 |
||||||
T=1.5 |
5.0 |
2.4 |
T=1.5 |
5.4 |
2.4 |
||||||
M5 |
T=0.6 |
2.4 |
4.6 |
5.6 |
2.0 |
|
|
|
|
|
|
T=0.8 |
5.8 |
2.2 |
|||||||||
T=1.0 |
6.0 |
2.4 |
|||||||||
T=1.2 |
6.2 |
2.6 |
|||||||||
T=1.5 |
6.4 |
2.8 |
2.須用無屑絲攻.
3.牙規檢測`