9-8. Conditions That Affect Weld Bead Shape
NOTE
Weld bead shape is affected by electrode angle, arc length, travel speed, and thickness of base metal.
| Correct Angle |
|
Angle Too Small | 10° - 30° | Angle Too Large |
Drag
ELECTRODE ANGLE
Spatter
Too Short | Normal | Too Long |
| ARC LENGTH |
|
Slow | Normal | Fast |
| TRAVEL SPEED |
|
9-9. Electrode Movement During Welding
NOTE
Normally, a single stringer bead is satisfactory for most narrow groove weld joints; however, for wide groove weld joints or bridging across gaps, a weave bead or multiple stringer beads work better.
|
| 1 | Stringer Bead – Steady |
|
|
| Movement Along Seam |
1 | 2 | 2 | Weave Bead – Side to Side |
| Movement Along Seam | ||
|
|
| |
|
| 3 | Weave Patterns |
Use weave patterns to cover a wide area in one pass of the electrode. Do not let weave width exceed
3
