14-19. Troubleshooting − Burn-Through
Possible Causes | Corrective Actions |
|
|
Excessive heat input. | Select lower amperage. Use smaller electrode. |
|
|
| Increase and/or maintain steady travel speed. |
|
|
14-20. Troubleshooting − Waviness Of Bead
Waviness Of Bead − weld metal that is not parallel and does not cover joint formed by base metal.
Possible Causes | Corrective Actions |
|
|
Unsteady hand. | Use two hands. Practice technique. |
|
|
14-21. Troubleshooting − Distortion
|
|
| Distortion − contraction of weld met- |
|
|
| al during welding that forces base |
|
|
| metal to move. |
|
| Base metal moves | |
|
| ||
|
| in the direction of | |
|
| ||
|
| the weld bead. | |
|
|
| |
Possible Causes |
| Corrective Actions | |
|
|
| |
Excessive heat input. |
| Use restraint (clamp) to hold base metal in position. | |
|
|
|
|
|
|
| Make tack welds along joint before starting welding operation. |
|
|
|
|
|
|
| Select lower amperage for electrode. |
|
|
|
|
|
|
| Increase travel speed. |
|
|
|
|
|
|
| Weld in small segments and allow cooling between welds. |
|
|
|
|
