9-5. Gun 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 works better.
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1Stringer Bead − Steady Movement Along Seam
2Weave Bead − Side To Side Movement Along Seam
3Weave Patterns
Use weave patterns to cover a wide area in one pass of the electrode.
9-6. Poor Weld Bead Characteristics
| 1 | Large Spatter Deposits | |
1 | 2 | Rough, Uneven Bead | |
3 | Slight Crater During Welding | ||
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| 4 | Bad Overlap | |
| 5 | Poor Penetration |
2 | 3 | 4 |
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9-7. Good Weld Bead Characteristics
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| 1 | Fine Spatter |
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| 2 | Uniform Bead |
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| 1 | 3 | Moderate Crater During |
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| Welding |
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| Weld a new bead or layer for each | |
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| 1/8 in (3.2 mm) thickness in metals | |
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| being welded. | |
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| 4 | No Overlap |
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| 5 | Good Penetration into Base |
2 | 3 | 4 |
| Metal |
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