At 07:58 AM 11/12/1998 -0600, nogera@juno.com wrote:
>
>When welding mild steel with a MIG set up, is there any advantage to
>using Argon or a Argon Co2 mix as apposed to CO2 ? Also my supplier
>says if I switch to argon I will have to change my regulator to a Argon
>regulator. Can use my current regulator and change out the regulator
>input fitting ?
>
>And finally, my Mig has four amp settings , well true to my life the 22 g
>metal of my current project seems to fall right smack between 1 and 2.
>Any suggestions as to techniques to reduce the heat to prevent burn
>through.
>
>Bob Nogueira
>
Normal mix for MIG welding is 75% Argon 25% CO2. If you are indeed
using straight CO2 you should get much better looking welds with the
Argon mixture. I believe that the only reason you would go to straight
CO2 is for Aluminum or a hotter more volitile arc on steel ?
Regards, Nils
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