The copper sheet was used for starting an arc in DC Tig welding. Does not contaminate the tungsten as even steel will. Generally used on machines without a lift-arc feature.
As has been mentioned, Hi Freq is required for AC Tig welding. Without it (except for the inverters) the arc will extinguish as it passes thru 0 when switching from DC+ to DC-.
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Thread: bobcat 225 and tig alum
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04-18-2009, 06:11 PM #11
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04-19-2009, 03:10 AM #12
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ALum
I welded it with a XMT 304 at work with Helium.We didn't have a hight Feak.Which I do at my shop.I got a Syncrowave 250 DX with a watercooled rig.Miller 252,Miller 140 and 2 other machines/ 675 plasma.Fixing to get Trailblazer 302.My coworker is the one who shown me You could use helium.I tried it I really didn't like the way it welded it wasn't as clean like my new Syncrowave 250 DX LOL
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04-19-2009, 05:36 AM #13
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I hope after 7 months he figgured it out.
XMT 350 cc/cv
XMT 350 vs
TRAILBLAZER 302
MILLER DVI
PASSPORT PLUS
DYNASTY 200 DX
MAXSTAR 150 STL
HOBART CHAMP
HF-251 BOX
12-RC SUITCASES
12-VS SUITCASE
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