There's usually some discoloration on then end of the tungsten above the sharpened point after it's been contaminated during practice.
Is sharpening the tungsten enough or do I need to clear that discoloration as well?
If it must be cleared what's the best way to do that?
Was thinking of putting a clean fine wire brush on the other end of my bench grinder for that.
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08-09-2013, 10:09 AM #1Member
- Join Date
- Nov 2012
Cleaning Soot/Discoloration From Tungsten
08-09-2013, 10:19 AM #2
I usually just break it off just above the contaminated area and regrind the tungsten....
It seems to be false economy to try and save some money on tungsten when the possibility of a contaminated weld will cost much more in the long run...
your bead is your signature.... and people will remember the crappy ones...
(not to mention the failure danger of unsound welds)
Tungsten is pretty inexpensive in the great scheme of things..
my 2cents worth...
Last edited by H80N; 08-09-2013 at 10:22 AM..
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08-12-2013, 08:59 PM #3
I usually scrub mine clean with SS wool or a SS wire wheel. If the discoloration doesn't come off, I chop it. But don't take my word as law, I'm a hobbiest. JaDiversion 180
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08-13-2013, 12:10 PM #4
If you touch the tip or dip it, you'll see the arc flare, that's it for me, I can't stand it. But just a quick grind / sharpen on the tip and the arc is right back like it should be. IMO this tell me that the discoloration above the tip is not a problem.
Like already stated, these aren't worth worrying about too much.
You probably have plenty of practice on re grinding them, most of us do, LOL
Sharpen a whole pack, both ends. This way when your practicing welding your not spending time cleaning tungstens. If you load it up, you'll have to break it off to use the other end as it wont go back into the torch or just grab another one.
If you find yourself dipping the tip repeatedly, have a look around. You may see your sitting in a fog of smoke and the area is not being ventilated properly.