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6-4. Weld Bead Characteristics
Poor Weld Bead
Good Weld Bead
Welding Troubleshooting
B.
Possible Causes
Wire feed speed too high.
Voltage too high.
Wire extension (stickout) too long.
Workpiece dirty.
Insufficient shielding gas at welding arc. Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.
Dirty welding wire.
1
2
3
1
2
3
Table 6-1. Excessive Spatter
Select lower wire feed speed.
Select lower voltage range.
Use shorter wire extension (stickout).
Remove oil, moisture, rust, and paint, etc. from work surface before welding.
Use clean, dry welding wire.
Eliminate oil or lubricant on welding wire.
4
5
5
4
Excessive Spatter − scattering of molten metal particles that cool to
solid form near weld bead.
Corrective Actions
1
Large Spatter Deposits
2
Rough, Uneven Bead
3
Slight Crater During Welding
4
Bad Overlap
5
Poor Penetration
S-0053-A
1
Fine Spatter
2
Uniform Bead
3
Moderate Crater During
Welding
Weld a new bead or layer for each
1/8 in (3.2 mm) thickness in metals
being welded.
4
No Overlap
5
Good Penetration Into Base
Metal
Ref. S-0052-B
S-0636
OM-1314 Page 7
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Table of Contents
Troubleshooting
