How to Perform a Butt Weld
Male: Well we got a runner definitely named like or gadgets on. We’re
using and run about 20 pounds if you ever take a few and the
charge were work out the bulb is on the inside and you just go for
us to talk to the taking so the metal and then go down for your
shielding gas which we use 75% Argon, 25% carbon dioxide and
then ever tell you exactly what you do and you take your wire
speed and your average. So what they’ve done is taken care of all
that. Yeah, yeah let’s show you how to do it.
[Demonstration]
That’s the rolling we’re talking about to prepare it well. So when
you go on along the beach has to work your panel and you did
somewhere and you have your metal separated. If you try to make
a continuous bead and then this gets too hot and then burns through
this thin sheet metal and you can see it in a metal body.
Due to the thin metal used on the vehicles makes it difficult to
weld without burning through or warp the metal.
To help prevent this triggering method may be used. Stitch
Welding helps control the heat.
Male: You can see, we can tell that it has penetration and we’re about to
take.
Male: And that’s good penetration and the heat is not too high.
Male: Let’s try it.
Male: We have got a couple pair of stitches with the body.
Male: Go ahead man.
Male: Yeah, because it has turned. When welding, there is a push and
pull methods. Here is a push method being demonstrated.
Male: Were about to demonstrate some stitch weld you do them about
quarter inch to half inches long at the most. And you’ll make the
weld and then you’ll bounce around the panel moving it so again
disperse the heat evenly. So you won't have such a chance of
working to the panel. You still have to be careful not too because
in the end you may caught yourself more trouble. Now we’re
working, all right. Alright, taping this through helmet didn’t work
so well. Then we thought to try using a shaded face shield. That
worked much better. For more information visit our class blog
www.BCRN.BlogSpot.com Butler Community College
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