Hobart Welding Products OM-498 manual Conditions That Affect Weld Bead Shape

Models: OM-498

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11-8. Conditions That Affect Weld Bead Shape

NOTE

Weld bead shape is affected by electrode angle, arc length, travel speed, and thickness of base metal.

 

Correct Angle

 

Angle Too Small

10° - 30°

Angle Too Large

Drag

ELECTRODE ANGLE

Spatter

Too Short

Normal

Too Long

 

ARC LENGTH

 

Slow

Normal

Fast

 

TRAVEL SPEED

 

S-0061

11-9. Electrode Movement During Welding

NOTE

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 work better.

 

 

1

Stringer 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. Do not let weave width exceed 2-1/2 times diameter of electrode.

3

S-0054-A

OM-498 Page 44

Page 48
Image 48
Hobart Welding Products OM-498 manual Conditions That Affect Weld Bead Shape, Electrode Movement During Welding