Looking for hell hole welding advice |
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Looking for hell hole welding advice |
AndrewBlyholder |
Aug 15 2020, 12:36 PM
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#1
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Member Group: Members Posts: 109 Joined: 20-September 04 From: Richmond, CA Member No.: 2,791 |
Launching in my hell hole rust repair. Need some advice on the usual welding technique for patching.
Many of the patch parts have flanges that match the factory stampings. I assume the factory spot welded these things together. Is that correct? Don't have a spot welder, and probably couldn't reach most of these locations if I did. What's the usual technique then? Drill holes in the flanges and fill with rosette welds? Or just weld the edges of the flanges? I'm replacing some sections of the main longitudinal tubes under the battery. That tube was a double walled on both the inside and outside faces. The replacement panel I have from AA has the double wall spot welded onto it. But how do I go about getting both panels weld together at the butt joint where the patch meets the original? Grind/cut the outer face back a little bit more than the inner panel, weld the inner first, and then weld up the outer? Battery tray replacement questions: - The lower support has three flanges on it. The front and side flange are easily accessible for welding, but the rear flange is turned inward. Do you weld that one too or leave it unwelded? What did the factory do there? - The easy way to attach the battery tray to the support would be to weld them together first. Is that recommended? But if you do that, then there would be no way to weld the inward turned rear flange of the support. Thanks for any and all suggestions. Andrew Blyholder |
Superhawk996 |
Aug 15 2020, 01:00 PM
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#2
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914 Guru Group: Members Posts: 5,836 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
Andrew - no easy answers to all of your questions.
Yes - flanges were spot welded at factory. Yes - you can rosette weld the new panels. No - don't weld just the edges of the flanges. Without the rosette welds along the flange you'll lose stiffness. Yes -- you can add some intermittent stich welds at the edges but don't rely on that exclusively. The rest of the questions basically come down to your skills, your equipment on hand, and the quality of the end result you desire. Bottom line, there is no "right" way. It sort of comes down to experience on a case by case basis. As you noted, it also comes down to the order of assembly. In my case I've done a lot of things differently since I'm trying to preserve the paint on my quarter panels rather than undertake a full exterior paint job at the end. Would strongly recommend checking out other legendary build threads here by Jeff Hail and Brent Brock. Lots of pictures, lots of step by step. Lots of sharing what tools and techniques were used. http://www.914world.com/bbs2/index.php?showtopic=307290 http://www.914world.com/bbs2/index.php?showtopic=76791 Pictures of your specific concerns will garner a better, more educated response. Many here will chime in and be happy to help. I'd suggest posting pictures of your situation as you encounter them rather than in lump sum. Sounds like you've got a project on your hands (IMG:style_emoticons/default/happy11.gif) |
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