[TheForge] I don't get it...babble OT

[David E. Smucker]

Jerry, Is right on.  With Tig welding (Mig too unless flux core) there is no 
flux to help float things out of the weld pool, nence the problem.  When 
forge welding you have something else beside flux to help you, and that is 
the force of the forging itself.  While you can hit it too hard, hitting it 
is important to a good "forge" weld.

Dave Smucker
----- Original Message ----- 
From: "Jerry Frost" <frosty at customcpu.com>
To: <artgawk at thegrid.net>; "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Tuesday, December 19, 2006 3:10 AM
Subject: Re: [TheForge] I don't get it...babble OT


> The name explains the reason.
>
> TIG is Tungsten and Inert Gas. Burning oil, grease and paint aren't very 
> inert and do all kinds of bad things to the shielding gas, plasma column 
> and weldment.
>
> Same story for MIG.
>
> Welding electrodes like 6011 and 6013 are designed for field welding 
> (amongst other things) and are pretty insensitive to dirt and moisture.
>
> A drop of light clean oil in a forge weld scavenges oxy by creating a very 
> reducing environment between the pieces being joined.
>
> Frosty (defender of dead horses)
> -------------------------------
> If it ain't forged
> it ain't real.
> Wrought iron is.
> The FrostWorks
>
> Meadow Lakes, AK.
>
> http://www.artmetalradio.com/
>
> From: "Peter Fels And Phoebe Palmer" <artgawk at thegrid.net>
>
>
>> Uhhh, Just ignore this please
>> Just to prod a dead horse a few more times....
>> I'd assumed that the speed of heating with the TIG couldn't be That 
>> abrupt ,or high carbon and/or alloys would crack  on both sides of the 
>> weld bead.
>>  There is some considerable amount of time for most of that oily 
>> material, and even low temperature metals, to fume off and be blown away 
>> by the gas flow. It's hot, it's shielded and it's agitated.
>> How can the tiny fraction of remaining oil be enough to cause porosity?
>> I dunno...but it seems to be the case.
>> I'd imagined that the TIG .with it's searing actinic plasma and 
>> enveloping shielding gas, would be partly immune to those petty 
>> considerations. Why's TIG so fussy?
>> Or do i still have technical problems?
>> Or am i simply incompetent?
>> Why ask when i probably know already?
>> Why ask when these aren't fruitful question?
>> Useless fruit of the mating of the keyboard and cup.
>> See, not one hammer has fallen.
>> Spent the day on the old rusty-pipe scaffold patching the" temporary tar 
>> paper" on the shop exterior....pf
>>
>>
>
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