Hobart Welding Products 125 manual Gun Movement During Welding, Poor Weld Bead Characteristics

Models: 125

1 48
Download 48 pages 35.27 Kb
Page 38
Image 38

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.

 

 

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

1

2

area in one pass of the electrode.

3

S-0054-A

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

1

2

3

4

5

S-0053-A

9-8. Good Weld Bead Characteristics

1

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

S-0052-B

OM-947 Page 34

Page 38
Image 38
Hobart Welding Products 125 Gun Movement During Welding, Poor Weld Bead Characteristics, Good Weld Bead Characteristics