Hobart Welding Products OM-240 438E manual Conditions That Affect Weld Bead Shape, Electrode Angle

13-7. Conditions That Affect Weld Bead Shape

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

	Correct Angle
Angle Too Small	10° - 30°	Angle Too Large

Electrode Angle

Drag

Spatter

Arc Length
Too Short	Normal	Too Long
Travel Speed
Slow	Normal	Fast

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13-8. Electrode 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
1		2	stringer beads work 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 elec-
			trode. Do not let weave width	ex-
	3		ceed 2-1/2 times diameter	of
			electrode.

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OM-240 438 Page 54