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  MIG wire size for sheetmetal replacement

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Author Topic:   MIG wire size for sheetmetal replacement
juiceman39
Journeyman

Posts: 61
From: wadsworth, Oh USA
Registered: Jul 2005

posted 07-24-2005 09:46 PM     Click Here to See the Profile for juiceman39        Reply w/Quote
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?

67stang
Gearhead

Posts: 2687
From: Panama City, FL
Registered: Jun 99

posted 07-24-2005 10:15 PM     Click Here to See the Profile for 67stang        Reply w/Quote
Turn down the heat...

I have used .030 and .035 for sheetmetal. Takes practice.

ddenton749
unregistered
posted 07-24-2005 10:27 PM              Reply w/Quote
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.

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63Kcode
Gearhead

Posts: 281
From: Anna Tx
Registered: Dec 2004

posted 07-24-2005 10:36 PM     Click Here to See the Profile for 63Kcode        Reply w/Quote
Use the .023. I also found that using stright co2 works better for sheet metal than using the argon/co2 mix

Hemikiller
Gearhead

Posts: 726
From: Killingworth, CT
Registered: Feb 2002

posted 07-24-2005 11:35 PM     Click Here to See the Profile for Hemikiller        Reply w/Quote
.023 wire for thin sheetmetal....

mellowyellow
Gearhead

Posts: 8198
From: So. Fl.
Registered: Aug 2000

posted 07-25-2005 06:20 AM     Click Here to See the Profile for mellowyellow        Reply w/Quote
Same as above....023. Bad luck with heavier stuff. 023 works well for me.

juiceman39
Journeyman

Posts: 61
From: wadsworth, Oh USA
Registered: Jul 2005

posted 07-25-2005 09:50 PM     Click Here to See the Profile for juiceman39        Reply w/Quote
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.

HHStang
Gearhead

Posts: 596
From: Coastal SC, USA
Registered: Feb 2003

posted 07-25-2005 09:56 PM     Click Here to See the Profile for HHStang        Reply w/Quote
I've done two cars with .030 MIG

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juiceman39
Journeyman

Posts: 61
From: wadsworth, Oh USA
Registered: Jul 2005

posted 07-26-2005 08:38 AM     Click Here to See the Profile for juiceman39        Reply w/Quote
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.

lonewolf
Gearhead

Posts: 419
From: Colorado; M&M #3117
Registered: Jul 2003

posted 07-26-2005 11:28 AM     Click Here to See the Profile for lonewolf        Reply w/Quote
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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