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Re: Tig welding panel
Posted:
Tue Feb 28, 2012 8:29 pm
by XR7
Re: Tig welding panel
Posted:
Thu Mar 01, 2012 6:06 pm
by timbo
Stud welder.
Re: Tig welding panel
Posted:
Thu Mar 01, 2012 9:02 pm
by chevman
XR7 wrote: and more importantly, how to avoid it in the future..
Don't make relief cuts!
The distortion problems from welding are just that,
problems from welding.
When you start trying to work on the distortion, you are working on the symptoms, instead of the problems and it actually makes the problems worse.
Also, when you do your weld spots with the mig welder, let it cool naturally. Water or air for cooling the weld quicker will make more shrinking and more distortion. Just do one small spot and jump around to other spots, so no area gets too hot. And hammer on dolly to stretch the weld area back out.
Sometimes it helps a lot to decide where to make the weld before you make the first cut.
Re: Tig welding panel
Posted:
Mon Mar 05, 2012 4:47 pm
by XR7
I was hoping someone had some insight. really, any help would be greatly appriciated.
That's weird, when I posted this post im editing now there were no replies! I guess the browser wasnt refreshing, sorry guys.
Re: Tig welding panel
Posted:
Mon Mar 05, 2012 4:54 pm
by chevman
It looks like the sunroof is only spot welded in.
Re: Tig welding panel
Posted:
Tue Mar 06, 2012 7:08 pm
by XR7
It's plug welded, and I'm struggleing with the warp around the roof clearance light. it's driving me nuts, it's a result of trying to remedy another warp, witch was sucessfull to a point beside the more acute one in the picture. I need a clue to iron this out.
Re: Tig welding panel
Posted:
Tue Mar 06, 2012 7:13 pm
by XR7
so a stud welder and light slide hammer? Sounds like a pretty straightforward idea. Im gonna run with that.
Thanks Timbo and rock!
Re: Tig welding panel
Posted:
Wed Mar 07, 2012 4:24 pm
by chevman
I'm kind of at a loss here to help you.
If you think of a piece of paper, and cut a hole in the middle of it. Then cut from the bottom of the paper to the hole, then make another cut right next to it--just taking a sliver out of the paper. Now move the two lower pieces together and notice the bulge at the top of the paper.
Thats what you did, but the bulge is down instead of up. If it was me repairing that, I would cut out that area where you made your last weld, and get the metal all straight and weld in a new piece. But if you try that, its obvious from your previous welds that it will cause even more problems, so as I said, I'm at a loss here to help you.
Re: Tig welding panel
Posted:
Wed Mar 07, 2012 8:36 pm
by XR7
well, after some hammer and dolly work tonight on some of the oil-canning spots, I've had great success in restoring shapes in some areas with very minor distortion. It's occurred to me that it might be possible to stretch the weld, and the area that cause the warp. but thinking furthur, I know oxy welds tend to be much more malleable and easier to stretch... so I know you said not to do relief cuts.... but in this situation would it be best to cut the mig weld and gas weld it, with periodic hammer and dolly work between small stitches? My thinking is easier weld to stretch, and allows cooling between stiches. am I thinking straight here or just further in the hole?
Re: Tig welding panel
Posted:
Wed Mar 07, 2012 8:57 pm
by chevman
Its hard to say now, because you have been hammering on the symptoms again.
But your plan could work if you have the ability to weld with gas.