Miller Gold Seal 160 i Owner's Manual download pdf (Page 19)

OM-189 116 Page 15

6-3. Preparing Tungsten For DC Electrode Negative (DCEN) Welding

Ref. S-0161 / Ref. S-0162

1 Tungsten Electrode

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.

Ideal Tungsten Preparation – Stable Arc

2-1/2 Times

Electrode Diameter

1 Stable Arc

2 Flat

Diameter of this flat determines

amperage capacity.

3 Grinding Wheel

4 Straight Ground

1 Arc Wander

2 Point

3 Grinding Wheel

4 Radial Ground

Wrong Tungsten Preparation – Wandering Arc

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Miller Gold Seal 160 i Owner's Manual Page 19