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Re: Mig welding Q&A
[Re: RobX4406]
#814062
09/27/10 11:37 PM
09/27/10 11:37 PM
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Joined: Jan 2003
Posts: 3,122
Auburn WA
Dave_J
master
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master
Joined: Jan 2003
Posts: 3,122
Auburn WA
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About 15. At 20 it may steady the arc a bit in a windy garage but youll use a bit more gas. Above 20 and your wasting money. All you want is a small pocket of inert gas that will not react with the arc. Argon will have a smooth finish. Co2 will alow a lot of heat and flatten the bead. A 75/25 mix is good for most.
That guy that sold you that tank is also the guy that will exchange the empty one, RIGHT? Hummmmm.
Last edited by Dave_J; 09/27/10 11:41 PM.
Retired, US ARMY 1973-1994
ASE mechanic, Electrical 1994-1997
Retired GTE/VERIZON/FRONTIER 1997-2015
Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.
03 Suzuki Burgman 650(Burger King) Scooter
65 Formula S Cuda
78 Little Red Express Truck
98 Buick Regal (wifes car)
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Re: Mig welding Q&A
[Re: 74-440Charger]
#814066
09/28/10 09:00 AM
09/28/10 09:00 AM
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Joined: Jan 2003
Posts: 75,326
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,326
A gulag near you.
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Quote:
One more question for the experts here  what pressure do you run the gas at on your mig? Thanks
The proper gas regulator is a flow meter not a pressure gauge , I'm not sure what the correlation is between CFM and psi , I usually set it at 20cfm.
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Re: Mig welding Q&A
[Re: Commando1]
#814068
09/28/10 06:48 PM
09/28/10 06:48 PM
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Joined: Jan 2003
Posts: 6,591
Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Quote:
Quote:
Nothing wrong with that helmet for the home user/hobbyist. The higher end units look nicer and have a higher quality shell and (where it really counts) a much better headband/hinge mechanism. But the lenses are likely no better.
Interesting. I am going HF today anyway so that looks like a done deal, too. 
Harbor Freight: The company you LOVE to Hate. 
Ive got one of the HF $ 49.00 adjustible lens helmet and it just doesnt get dark enough at its highest setting 12. After a few seconds of welding the bright light blinds me like in your dark welding pic.
Im back with a old broken strap helmit now, it works much better. The work looks like your lighter welding pic.
Maybe I got a bad one, but I got another buddy who has a adjustible and he has the same complaint. I dont know if he got his from Harbor freight or not, But right now neither one of us will use those adjustible helmets.
IMO, you have to get the expensive ones for them to work right but I could be wrong. Like I said, maybe I got a bad one, or maybe the Chinese have fixed the problems with those helmets. mike
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Re: Mig welding Q&A
[Re: Sport440]
#814070
09/29/10 11:41 AM
09/29/10 11:41 AM
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Joined: Jan 2003
Posts: 75,326
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,326
A gulag near you.
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Quote:
Quote:
Quote:
Nothing wrong with that helmet for the home user/hobbyist. The higher end units look nicer and have a higher quality shell and (where it really counts) a much better headband/hinge mechanism. But the lenses are likely no better.
Interesting. I am going HF today anyway so that looks like a done deal, too.
Harbor Freight: The company you LOVE to Hate.
Ive got one of the HF $ 49.00 adjustible lens helmet and it just doesnt get dark enough at its highest setting 12. After a few seconds of welding the bright light blinds me like in your dark welding pic.
Im back with a old broken strap helmit now, it works much better. The work looks like your lighter welding pic.
Maybe I got a bad one, but I got another buddy who has a adjustible and he has the same complaint. I dont know if he got his from Harbor freight or not, But right now neither one of us will use those adjustible helmets.
IMO, you have to get the expensive ones for them to work right but I could be wrong. Like I said, maybe I got a bad one, or maybe the Chinese have fixed the problems with those helmets. mike
You get what you pay for, I would think your vision is worth more than 49 bucks.
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Re: Mig welding Q&A
[Re: BSharp]
#814071
09/29/10 03:38 PM
09/29/10 03:38 PM
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Joined: Jan 2003
Posts: 3,122
Auburn WA
Dave_J
master
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master
Joined: Jan 2003
Posts: 3,122
Auburn WA
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Just my opinion. You should always have the ground clamp as close to your weld area as possable. But on any vechile you need to disco the battery. Thats about all you can do. I have heard of people removing the ECM/Computers. If your going to weld anywhere within 4 feet of the ECM, I'd remove it for sure.
Retired, US ARMY 1973-1994
ASE mechanic, Electrical 1994-1997
Retired GTE/VERIZON/FRONTIER 1997-2015
Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.
03 Suzuki Burgman 650(Burger King) Scooter
65 Formula S Cuda
78 Little Red Express Truck
98 Buick Regal (wifes car)
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