參考資料
表-1.孔徑配合尺寸容許公差與鉸刀公差 (由JIS摘錄) (單位 unit：μm)
|
尺寸區分(mm) Classification of dimension (mm) |
孔公差 Dimensional tolerance for holes |
絞刀公差 Reamer tolerance |
||
|
以上 Above |
以下 Below |
H7 |
H8 |
m5 |
|
— |
3 |
+0.010 0 |
+0.014 0 |
+0.006 +0.002 |
|
3 |
6 |
+0.012 0 |
+0.018 0 |
+0.009 +0.004 |
|
6 |
10 |
+0.015 0 |
+0.022 0 |
+0.012 +0.006 |
|
10 |
18 |
+0.018 0 |
+0.027 0 |
+0.015 +0.017 |
|
18 |
30 |
+0.021 0 |
+0.033 0 |
+0.017 +0.008 |
|
30 |
50 |
+0.025 0 |
+0.039 0 |
+0.020 +0.009 |
|
50 |
80 |
+0.030 0 |
+0.046 0 |
+0.024 +0.011 |
|
80 |
120 |
+0.035 0 |
+0.054 0 |
+0.028 +0.013 |
表-2. 鉸刀條件表 (孔徑ψ5~20)
|
被削材 Work materials |
孔之傾向 Tendency of holes |
超硬絞刀 Carbide Reamers |
高速鋼絞刀 High speed steels Reamers |
|||||
|
切削速度 Cutting Speed (m/min) |
預留 削除量 Stock amount (mm) |
面粗度 之期待值 Expected value of Surface roughness |
切削速度 Cutting Speed (m/min) |
預留 削除量 Stock amount (mm) |
面粗度 之期待值 Expected value of Surface roughness |
|||
|
一般構造用鋼 SS Structual steels |
大 Widen |
8~20 |
0.2~0.3 |
12.5S |
5~12 |
0.2~0.3 |
12.5S |
|
|
炭素鋼 SC Carbon steels |
大 Widen |
10~20 |
0.2~0.3 |
6.3S |
3~10 |
0.2~0.3 |
12.5S |
|
|
合金鋼 SCM,SUJ Aloy steeis |
大 Widen |
7~15 |
0.2~0.3 |
6.3S |
3~6 |
0.2~0.3 |
12.5S |
|
|
工具鋼 SK,SKD Tool steels |
大 Widen |
5~15 |
0.2~0.3 |
6.3S |
3~4 |
0.2~0.3 |
6.3S |
|
|
調質鋼 Hardened steels |
~28HRC |
大 Widen |
5~15 |
0.15~0.25 |
6.3S |
3~4 |
0.15~0.25 |
6.3S |
|
~40HRC |
小 Narrow |
5~10 |
0.1~0.2 |
6.3S |
— |
— |
— |
|
|
鑄鐵 FC,FCD Cast iron |
大 Widen |
7~15 |
0.2~0.3 |
6.3S |
4~8 |
0.2~0.3 |
6.3S |
|
|
不鏽鋼SUS Stainless steels |
小 Narrow |
5~15 |
0.2~0.3 |
6.3S |
3~4 |
0.2~0.3 |
|
|