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Question for TIG welders

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Norm in NC

10-06-2000 14:43:35

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What's the difference between alumina and lava nozzles for my TIG torch ? Does one have some advantage over the other ? Just acquired a Miller TIG/Stick welder. I really like TIG welding, but don't know much about it.

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T_Bone

10-06-2000 17:40:52

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Re: Question for TIG welders in reply to Norm in NC, 10-06-2000 14:43:35

Hi Norm, Lava cups are great for rocking in a weld with Tig. Rocking welds is where you rock the tourch handle from side to side while resting the cup on the base material thus letting the cup move forward on every rocking motion. Makes for a very nice weld but takes some practice. Lava cups also are very sticky when in contact with the base metal, where a alumina cup glides over the base metal. Where you'll really notice the difference is on SS.

Buy all glass lens for welding hoods including the colored glass. If you use plastic lens you will get a double weld puddle and after awhile it hard to tell which one is the correct weld puddle. A glass "gold Cool Ray" in shade 11 is the best, about $55. Tig requires a darker lens than SMAW or Mig welding. Use a clear lens on both sides of the Cool Ray lens. Becarful to never scratch the gold as it will ruin the lens and your eyes.

A Huntsman 411-P is the best welding hood out there. Lite weight and will last a life time. I never did like the auto-change hoods.

3/32" Tungston is the best diameter. Always sharpen to a very fine point and 3/16" to 1/4" back from the point would be the taper. I found the side of the grinding wheel makes the best point.

When I started welding 30yrs ago, my vision was minus 125 and when I stoped welding it was minus 575. Does that tell you anything?

T_Bone

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