OM-249 498 Page 40
9-5.
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.
1
Stringer Bead
−
Steady
Movement Along Seam
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.
S-0054-A
3
1
2
9-6.
Poor Weld Bead Characteristics
1
Large Spatter Deposits
2
Rough, Uneven Bead
3
Slight Crater During Welding
4
Bad Overlap
5
Poor Penetration
5
4
2
3
1
S-0053-A
9-7.
Good Weld Bead Characteristics
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
S-0052-B
2
3
1
4
5
