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Author
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Topic: MIG wire size for sheetmetal replacement
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juiceman39
Journeyman Posts: 61
From: wadsworth, Oh USA
Registered: Jul 2005
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posted 07-24-2005 09:46 PM
 
Could one-or more of you experienced welders tell me what wire size is best for 19-20 gauge sheetmetal work. Such as floor pan replacement.
were looking at a beginner here. I am practicing with .030 but it seems to blow holes easily, would .023 work better?
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67stang
Gearhead Posts: 2687
From: Panama City, FL
Registered: Jun 99
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posted 07-24-2005 10:15 PM
Turn down the heat...I have used .030 and .035 for sheetmetal. Takes practice.
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ddenton749
unregistered
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posted 07-24-2005 10:27 PM
quote:
Originally posted by 67stang:
Turn down the heat...
I've used 0.035 flux core and 0.025 gas shielded wire. Both work but it does take practice. Try moving your bead along a little faster. ------------------
'73 Convertible, 351C 2V
'91 LX Convertible 5.0
Member: Valley Forge Mustang Club
"I may not have gone where I intended to go, but I think I have ended up where I needed to be."
My Site
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63Kcode
Gearhead Posts: 281
From: Anna Tx
Registered: Dec 2004
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posted 07-24-2005 10:36 PM
Use the .023. I also found that using stright co2 works better for sheet metal than using the argon/co2 mix
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Hemikiller
Gearhead Posts: 726
From: Killingworth, CT
Registered: Feb 2002
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posted 07-24-2005 11:35 PM
.023 wire for thin sheetmetal....
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mellowyellow
Gearhead Posts: 8198
From: So. Fl.
Registered: Aug 2000
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posted 07-25-2005 06:20 AM
Same as above....023. Bad luck with heavier stuff. 023 works well for me.
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juiceman39
Journeyman Posts: 61
From: wadsworth, Oh USA
Registered: Jul 2005
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posted 07-25-2005 09:50 PM
I put the 0.23 wire in and it did seem easier NOT to burn thru. This will be a big help. Now I need to practice filling in holes I blew thru. thanks for the advice.
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HHStang
Gearhead Posts: 596
From: Coastal SC, USA
Registered: Feb 2003
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posted 07-25-2005 09:56 PM
I've done two cars with .030 MIG------------------
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1967 472 Prost D1X FBstang
1972 429 Mach/CJ Convertible
1997 Cobra vert S Trim (SOLD)
2004 F150 4x4 Crew FX4
Hobby site: www.mikemustangs.net
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juiceman39
Journeyman Posts: 61
From: wadsworth, Oh USA
Registered: Jul 2005
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posted 07-26-2005 08:38 AM
In my reading it seems I had my gas pressure to low-below 20. Miller welder site says 25 to 35. It also says the gas aids in cooling-maybe this was more my problem than wire size. I'm not sure what mix I have -the tank came filled with the used welder-the tank is brown. Anyway using the 0.23 wire and argon at 30, my welds look alot better.
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lonewolf
Gearhead Posts: 419
From: Colorado; M&M #3117
Registered: Jul 2003
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posted 07-26-2005 11:28 AM
I run C25 (argon/C02 mix) and just standard L56 (0.023") wire. The welds are clean and have great penetration. One thing I have noticed is an autodarkening helmet is almost mandatory on the thin metal since you use short bursts.I have thought about using some of the "20 Gauge" wire from JW Harris but can't seem to find a supplier either on the net or locally. Cheers, Rick
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