Hobart Welding Products 187 manual Gun Movement During Welding, Poor Weld Bead Characteristics

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.

1Stringer Bead − Steady Movement Along Seam

1	2	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.
	3

		S-0054-A
9-6. Poor Weld Bead Characteristics
	1	Large Spatter Deposits
1	2	Rough, Uneven Bead
	3	Slight Crater During Welding
	4	Bad Overlap
	5	Poor Penetration

2 3 4

5

S-0053-A

9-7. Good Weld Bead Characteristics

			1	Fine Spatter
			2	Uniform Bead
		1	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
2	3	4		Metal

5

S-0052-B

OM-228 187 Page 36