Balled VS Tapered tungsten electrode
Balled VS Tapered tungsten electrode
(OP)
Hi all, My question is regarding the use of balled electrode vs tapered electrode in AC Welding of aluminium. I have studied some books which says that balled tungsten electrode produces intense heat source as compared to tapered tungsten electrode. But, recently i have studied some literature of Miller electric which says that tapered electrode produces more focused and high heating arc while balled electrode produces wandering arc.
I would like to know the opinions of experts in this regard.
Thanx in advance
I would like to know the opinions of experts in this regard.
Thanx in advance





RE: Balled VS Tapered tungsten electrode
For what its worth, we only accept tapered tungsten tips for steel and stainless welding in the plants.
RE: Balled VS Tapered tungsten electrode
RE: Balled VS Tapered tungsten electrode
tip #10 here from a very practical fellow - has some "why"
http://www.weldingtipsandtricks.com/welding-alumin...
RE: Balled VS Tapered tungsten electrode
RE: Balled VS Tapered tungsten electrode
RE: Balled VS Tapered tungsten electrode
RE: Balled VS Tapered tungsten electrode
So for AC welding you use rounded or balled electrodes.
We weld SS and Ni alloys. The electrodes are ground to a taper (actually polished, no grinding marks allowed) and then a flat is put on the tip (a sharp point will not last).
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P.E. Metallurgy, Plymouth Tube
RE: Balled VS Tapered tungsten electrode
"When welding aluminum, it has become very acceptable to grind a point on ceriated tungsten (especially when welding on thinner materials)."
And this
"Pure tungsten melts at a lower temperature causing it to easily form a rounded ball at the tip. When the ball grows too large, it interferes with your ability to see the weld puddle and causes the arc to become unstable.
http://www.millerwelds.com/resources/tech_tips/TIG...
RE: Balled VS Tapered tungsten electrode
Exactly,you pointed out all right