Welding question: Argon for MIG?, Yes, I'm asking a welding question |
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Welding question: Argon for MIG?, Yes, I'm asking a welding question |
Series9 |
May 28 2005, 07:50 PM
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Lesbians taste like chicken. Group: Members Posts: 5,444 Joined: 22-August 04 From: DeLand, FL Member No.: 2,602 Region Association: South East States |
I just got a MIG welder to keep my TIG company in the garage.
Can I use 100% argon with the MIG? I've been through a few welding books and can't find a good answer. Most of the opinions suggest that CO2 mix is used to save money over pure argon, but don't really say wheather or not 100% argon is appropriate for MIG welding. If I can have one bottle, it would be easier. |
ChrisFoley |
May 30 2005, 08:40 PM
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I am Tangerine Racing Group: Members Posts: 7,935 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None |
That's only one function of the gas. The gas also carries the arc so the choice of gas influences how much energy is transferred from the gun to the work surface and affects the arc stability.
Actually I think you will find that all MIg tri-mixes are a blend of Argon/CO2/ Oxygen. The trace of oxygen helps with cleaning, since it oxidizes certain impurities. BTW, the choice of wire also has a big effect on certain weld properties such as fluidity, and how much rust and other impurities can be tolerated without getting porosity. |
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