Miller Electric 225, 300 Electrode Movement During Welding, Butt Joints, Do not let weave width

8-7. Electrode Movement During Welding

1 Stringer Bead − Steady Move-

		ment Along Seam
		2 Weave Bead − Side To Side
1	2	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.
		. A single stringer bead is
		satisfactory for most	narrow
		groove weld joints. For wide
		groove weld joints or bridging
3		across gaps, a weave bead
		works better.

S-0054-A

8-8. Butt Joints

1 Tack Welds

	2
	1/16 in	30°
1	(1.6 mm)
	3

4

Prevent edges of joint from drawing together ahead of electrode by tack welding the materials in position be- fore final weld.

2 Square Groove Weld

Good for materials up to 3/16 in (5 mm) thick.

3 Single V-Groove Weld

Good for materials 3/16 through 3/4 in (5-19 mm) thick. Cut bevel with oxyacetylene or plasma cutting equipment. Remove scale from material after cutting. A grinder can also be used to prepare bevels.

Create 30 degree angle of bevel on materials in V-groove welding.

4 Double V-Groove Weld

Good for materials thicker than 3/16 in (5 mm).

S-0662

OM-316 Page 34