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