Miller Bobcat 250 NT, Руководство пользователя

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OM-4403 Page 63
13-6. 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.
NOTE
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
13-7. 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
13-8. 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