mig questions, sample pics added |
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mig questions, sample pics added |
jimkelly |
Aug 21 2013, 10:29 AM
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#1
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
my original argon valve was bent up and leaked, so I ordered a new one. it had again, different sized threads, jeez.
so I went to ace ( r towel advice) and went with barbed fitting at both ends since the new argon valve came with a 1/4 barb already. question - when you are done welding and want to purge the lines of argon, after shutting the valve on the tank, do you have to waste wire or is there a way to purge without wasting wire? also, I expected the bead to stay at 15 psi when i turned the brass valve open, but it only rises to 15 psi or what ever I set it at, when I pull the red trigger on the mig - is this normal? also - I prepped some of my old real estate signs for practice : ) jim Attached image(s) |
Andyrew |
Aug 22 2013, 11:59 PM
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#2
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
Jim,
I prefer .30 wire personally for most bodywork. You should be using as little gas as required to keep the weld from bubbling/sputtering. I use about 15, take it down to 10 in a super controlled environment and up to 30 in windy weather. You need to practice running lines before you start bridging gaps like the 3/32nds gap you were working on. I bridge a gap like that with either a lot of wire speed and VERY quickly(This takes a lot of talent... and practice) or with tacks. Run lines till they are solid beads that have great heat penetration. Do 10 lines 4" long, number them and post up a pic. We will help you analyze and modify your technique. |
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