[TheForge] NEW

[Larry Brown]

You can weld heavier sections with the smaller migs but you need to pre 
heat the area and use multiple passes. I would pre heat the area to about 
250 - 300, do a root pass and then build stringer passes in from the sides. 
Several even passes and if possible keep it out of the wind or what ever 
way you have that is handy or can do to slow cooling won't hurt at all
L Brown

At 11:38 AM 1/22/2008 -0800, you wrote:
>Sure gonna warp like crazy if the bead is of much length...pf
>
>Washington, Aubrey O. wrote:
>>Well, I suppose my Millermatic 140 could weld 1/2" in one verrry slow 
>>pass...sort of.
>>Aubrey
>>________________________________________
>>From: theforge-bounces at mailman.qth.net [theforge-bounces at mailman.qth.net] 
>>On Behalf Of Mark A. Pesetsky [pesetsky at Princeton.EDU]
>>Sent: Monday, January 21, 2008 11:53 AM
>>To: Sponsored by ABANA
>>Subject: RE: [TheForge] NEW
>>LICOLN WELDPAK 155
>>
>>>Plain ol the Co2 works for mild steel. 1/2"? What kind of mig welder
>>>do you have? Ron C
>>>
>>Well, my Millermatic 251 is rated to be able to weld 1/2" in a single
>>pass.  Nice machine.  I'm currently using C25 (25% CO2 / 75% Argon) gas
>>on steel.