The one thing to take into consideration is you can't weld with gas if there
is ANY breeze!!! This means outside or in the garage with the doors open.
any little air current will blow away the gas and make a very poor weld.
This is one place were gassless is better. I recomend to my customers that
they have both. You can use flux core wire on a gas mechine with or without
the gas.
GEORGE!!
----- Original Message -----
From: "Mark" <Gilpin.MCKnospam@lycos.com>
To: <dakota-truck-moderator@bent.twistedbits.net>
Sent: Tuesday, April 16, 2002 1:47 PM
Subject: Re: DML: Re: Welding exhaust WAS Cat question?
>
> MIG welding is actually very easy, anyone can do it with just a little
> practice and the instruction book that comes with most welders. I don't
> recommend the gasless welders because the flux from the wire is actually
> just another thing that can contaminate the weld, even though it there to
> protect it. If your gonna buy one, spend the extra few bucks and get the
gas
> shielded, you will thank yourself later. The exhaust on most all modern
> vehicles is made from stainless. If your gonna weld it, its best to use
> stainless wire, which requires Argon shielding gas. If you use mild steel
> wire (gas shielded or flux core) the weld will be very weak and crack
> easily. If your gonna weld mild steel, you should use A/G %75 gas. ( %75
> Argon, %25 CO2) As for welding pipe on a vehicle, welding overhead with a
> MIG ain't easy, so the bottom will look like crap. Welding vertical with a
> MIG is quite easy, so the sides will look nice. Welding the top is
basically
> welding blind, trying to see what your doing while sticking your head up
> with a helmet on looking through a 1 1/2" X 3" (most helmets) window, most
> of the time you cant see crap. These TV shows where you see them hold the
> pipe up and start welding, all their doing is tacking it. They don't show
> you that they take it down and weld it real pretty then put it back up,
> point at it and say "look, piece of cake". I've had my MIG for 6 years
now,
> and its right up there with my guns. If you want it, your gonna have to
pry
> it from my cold, dead fingers.
>
> Mark
>
>
>
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