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Bending Terminology
|
|
Tube gauge sizes Equivalent
in inches |
| 10 GA. |
.134 |
| 11 GA. |
.120 |
| 12 GA. |
.109 |
| 13 GA. |
.095 |
| 14 GA. |
.083 |
| 16 GA. |
.065 |
| 18 GA. |
.049 |
| 20 GA. |
.035 |
|
|

|
Ram Style Bending
Material angles form as center axis advances toward two
fixed outer points
|
|

|
Mandrel Bending
Materials supported internally and externally while being drawn thru
counterbending die onto fixed radii tooling
|
 |
Rotary Draw Bending
Material drawn through stationary counterbending die onto fixed radii
former tooling to desired bend angle |
|
 |
Ring Roll Bending
Material formed using lateral movement and center roll downfeed
pressure to achieve desired angles |
|
|
Tube |
.039 |
.047 |
.059 |
.079 |
.098 |
.118 |
.128 |
.138 |
.157 |
.177 |
|
1/4" |
1.4 |
4.7 |
.47 |
1.4 |
1.4 |
1.4 |
.78 |
.78 |
.78 |
.78 |
|
3/8" |
1.4 |
1.4 |
.78 |
.78 |
.78 |
.78 |
.78 |
.78 |
.78 |
.78 |
|
1/2" |
1.4 |
1.4 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
5/8" |
1.8 |
1.8 |
1.8 |
1.4 |
1.4 |
1.4 |
1.4 |
1.4 |
1.4 |
1.4 |
|
3/4" |
2.6 |
2.6 |
2.6 |
1.8 |
1.8 |
1.8 |
1.8 |
1.8 |
1.8 |
1.8 |
|
7/8" |
2.6 |
2.6 |
2.2 |
1.8 |
1.8 |
1.8 |
1.8 |
1.8 |
1.8 |
1.8 |
|
1" |
3.2 |
3.2 |
2.6 |
2.2 |
2.2 |
2.2 |
2.2 |
2.2 |
2.2 |
2.2 |
|
1 1/8" |
3.2 |
3.2 |
3.2 |
2.6 |
2.2 |
2.2 |
2.2 |
2.2 |
2.2 |
2.2 |
|
1 1/4" |
4.4 |
4.4 |
4.4 |
3.2 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
|
1 3/8" |
4.4 |
4.4 |
4.4 |
3.2 |
3.2 |
3.2 |
3.2 |
3.2 |
3.2 |
3.2 |
|
1 1/2" |
7.5 |
5.9 |
5.1 |
3.9 |
3.9 |
3.5 |
3.5 |
3.5 |
3.5 |
3.5 |
|
1 5/8" |
7.5 |
5.9 |
5.1 |
3.9 |
3.9 |
3.5 |
3.5 |
3.5 |
3.5 |
3.5 |
|
1 3/4" |
|
|
6.7 |
6.7 |
5.1 |
3.9 |
3.9 |
3.9 |
3.9 |
|
|
1 7/8" |
|
|
7.5 |
5.9 |
5.1 |
3.9 |
3.9 |
3.9 |
3.9 |
|
|
2" |
|
|
7.5 |
7.5 |
5.9 |
4.7 |
4.7 |
4.7 |
4.7 |
|
|
2 1/8" |
|
|
7.5 |
7.5 |
5.9 |
5.1 |
5.1 |
4.7 |
|
|
|
2 1/4" |
|
|
|
7.5 |
5.9 |
5.1 |
5.1 |
5.1 |
|
|
|
2 3/8" |
|
|
|
7.5 |
5.9 |
5.1 |
5.1 |
5.1 |
|
|
|
3" |
|
|
|
|
11.8 |
10.2 |
9.8 |
|
|
|
|