[TheForge] disintegrating welding rod

[Bruce Freeman]

Contribution from a non-weldor:

Is it possible that a weld bead could be red-short?  Electric welding
is a melting operation, so it's not clear to me that red-short wire or
rod would be a disadvantage there.  Clearly, such a material would fall
apart when forged, however.

Bruce
NJ

>>> sunironworks at yahoo.com 12/23/2004 10:07:16 AM >>>
Yeah, I thought so too. Could be I got some gunk in there or like you
say the different harndesses made a difference. And Ralph's suggestion
that the mechanical distortion caused by heating (especially on a
weldment that's of a different hardness or grain stucture than the
base) is a pausible addition. I'll play with different welds and rods
and see if i can learn something. I have to fix this problem on this
particular bar this morning, so I'll tig it up again--carefully, with
good penetration and cleanliness--normalize and see what happens. 

Thanks and happy holidays all,

JRF
--- Peter Fels And Phoebe Palmer <artgawk at thegrid.net> wrote:

> In theory, TIG welds should be the least susceptable to that
problem.
> 
> I've found that running the weldment through a normalizing cycle 
> first 
> helps...PF
> 
> TodEstesRN at aol.com wrote:
> 
> >In a message dated 12/21/2004 6:29:52 PM Central Standard Time, 
> >xlch58 at swbell.net writes:
> >Justin Fellenz wrote:
> >
> >  
> >
> >>All,
> >>
> >>I've been finding that electric welds, especially tig,
disintegrate
> in
> >>the forge. Last session I cheated and tigged a couple of pieces of
> bar
> >>together rather than forge-weldng them. I used a general purpose
> mild
> >>steel gas welding rod (probably RG-45, copper coated) and 2 1/2"
> round
> >>bars of 1018 or 1020, or, my supplier said, maybe a38. I cleaned
> the
> >>rods up with a flap wheel, beveled the edges, and burnt em
> together.
> >>Looked like good penetration,a little sparking from junk on the
> metal
> >>but not too bad. But when I heated it up and beat on it with a
> hammer,
> >>the filler just sort of diappeared leaving gaps between the bar
> ends. 
> >>
> >>Maybe I didnt get it all the way clean and carbon or scale
deposits
> or
> >>whatever heated up and blew the filler or the HAZ metal out. My
> best
> >>guess. Anyone else experience this? I find that mig welds hold up
> ok as
> >>long as the penetration's really good, but where it's not it looks
> like
> >>the HAZ again just kind of powders and the bead pulls away from
the
> >>bar.
> >>
> >>Thoughts?
> >>
> >>Cheers,
> >>
> >>JRF 
> >>    
> >>
> >Don't know why that happened but have had good luck Oxy/Acy gas
> welding then 
> >forging. 
> >
> >
> >Time enough for sleep in the grave.
> >Tod Estes
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