Hobart 180 SD manual Preparing Tungsten For DC Electrode Negative Dcen Welding

7-3. Preparing Tungsten For DC Electrode Negative (DCEN) Welding

		1	Tungsten Electrode
1	2	2	Tapered End
		Grind end of tungsten on fine grit,
		hard abrasive wheel before weld-
		ing. Do not use wheel for other jobs
		or tungsten can become contami-
		nated causing lower weld quality.
	2-1/2 Times
	Electrode Diameter
		1	Stable Arc
	1	2	Flat
		Diameter of this flat determines
	2	amperage capacity.
		3	Grinding Wheel
	3	4	Straight Ground
	4
Ideal Tungsten Preparation – Stable Arc
		1	Arc Wander
	1	2	Point
		3	Grinding Wheel
		4	Radial Ground
	2
	3

4

Wrong Tungsten Preparation – Wandering Arc

Ref. S-0161 / Ref. S-0162

OM-355 Page 23