On Tue, 19 May 1998 18:10:40 -0300, you wrote:
>
>One more response on shielding gases can't hurt.
>
>CO2 gives the least penetration. You are less likely to burn through on
>thin material. The argon-CO2 is cleaner with less spatter and surface =
oxide
>but it is a hotter arc and a little more penetrating. Argon-CO2 is =
still
>good for thin panels.
All the data i've seen (from BOC) indicates that the more CO2 you have
in a mix the greater the penetration. My welds definately improved on
thin bodywork (less heat and fewer burn through) when I changed from
straight CO2 to a CO2/argon mix.
I'm using 75/23/2 Argon/ CO2/O2 on steel up to 5mm
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