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Welding thread!!!!

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Old 12-01-2017, 08:27 AM   #2356
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I think either way you're looking at a welded corner joint. I can't picture square tubing being bent farther than round tubing, and it sounds like you're needing a perfect 90* angle - which, from what I can imagine, can't be accomplished without a cut n' weld.

But, that being said I like your idea with replacing the factory skel with the square tubing. I think that would work fine as an interior cage - not so much as an exo though (for the points that your "opposer" mentioned)
These points are why I moved this over here. And every point he made is legitimate fact and well addressed. He is right that for an exoskeleton round would indeed be better, but somewhere along the way I changed concepts and wanted to explain more over here. And yes it would require cut and weld on at least three sides to make true square corners and stay true to shape on these round or square the same. And he is absolutely right about welds weakening the metal it is attached to, but... Ronin and I have discussed this I think in the past a couple times.

There is a current trend of grabbing higher tensile welding rod to weld soft material. This is one of the main problems with weld breakage and fatigue problems. The key is to use welding medium that is closer in malleability to the stock you are welding so that they can flex and work together at a similar tensile strength rather than work against each other hard verses soft.

As for weight? I would be removing quite a bit from the factory structure before adding back with the cage. But honestly? It wouldn't hurt these at all to have a little more weight to them and make them ride a little better overall.
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Old 12-05-2017, 01:07 AM   #2357
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And that brings up another example of what I am pointing to. Why is it that when your fishing license expires you no longer have any credibility or knowledge in the art of fishing until you renew it again? Same with a driver's license... when it expires all of a sudden society has some idea all knowledge of how to drive is now gone until you renew your license and get all those years of driving knowledge back again.
Or, as an opposite yet similarly supporting view - what or who's to say that just because you renew your license before it expires that you have said credibility and knowledge in the skills and rules of driving? We've all seen plenty of idiots on the road that are licensed drivers (presumably) that can't drive for ****!

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These points are why I moved this over here. And every point he made is legitimate fact and well addressed. He is right that for an exoskeleton round would indeed be better, but somewhere along the way I changed concepts and wanted to explain more over here. And yes it would require cut and weld on at least three sides to make true square corners and stay true to shape on these round or square the same. And he is absolutely right about welds weakening the metal it is attached to, but... Ronin and I have discussed this I think in the past a couple times.

There is a current trend of grabbing higher tensile welding rod to weld soft material. This is one of the main problems with weld breakage and fatigue problems. The key is to use welding medium that is closer in malleability to the stock you are welding so that they can flex and work together at a similar tensile strength rather than work against each other hard verses soft.

As for weight? I would be removing quite a bit from the factory structure before adding back with the cage. But honestly? It wouldn't hurt these at all to have a little more weight to them and make them ride a little better overall.
Excellent points, man. Can't wait to see what you come up with.
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Old 12-05-2017, 06:42 AM   #2358
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Or, as an opposite yet similarly supporting view - what or who's to say that just because you renew your license before it expires that you have said credibility and knowledge in the skills and rules of driving? We've all seen plenty of idiots on the road that are licensed drivers (presumably) that can't drive for ****!

Lol...very true!
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Old 12-05-2017, 06:12 PM   #2359
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Does Anyone know if stiffners can be done with tig or stick reasonably? Those are the only 220 v machines that I could possibly use. I have a flux core harbor freight 110 mig but it definitely won’t cut it.
Harbor freight welder will cut it for the unibody I used one for my frame stiffeners, it'll still burn through if your not careful. I built my girlfriends entire yj on 1 tons and 40s with a little harbor freight welder cause that's all I could use in her driveway. It's been very abused and in an accident too, nothing broke but a bent leaf. Not that I recommend harbor freight flux welders over anything else but it'll work if that's all you have.
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Old 12-05-2017, 07:55 PM   #2360
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Harbor freight welder will cut it for the unibody I used one for my frame stiffeners, it'll still burn through if your not careful. I built my girlfriends entire yj on 1 tons and 40s with a little harbor freight welder cause that's all I could use in her driveway. It's been very abused and in an accident too, nothing broke but a bent leaf. Not that I recommend harbor freight flux welders over anything else but it'll work if that's all you have.
I’m not worried about the frame, more the 3/16” plate that I’m trying to attach to it. I tried welding on my lca skids with it and I couldn’t get them to burn in.
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Old 12-05-2017, 08:00 PM   #2361
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I m not worried about the frame, more the 3/16 plate that I m trying to attach to it. I tried welding on my lca skids with it and I couldn t get them to burn in.
I used it on max and wire speed 4 with 035 Lincoln inner shield wire, travel kinda slow and focus more on the thicker material. My frame plates burned in just fine
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Old 12-05-2017, 10:04 PM   #2362
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I used it on max and wire speed 4 with 035 Lincoln inner shield wire, travel kinda slow and focus more on the thicker material. My frame plates burned in just fine
That Lincoln wire is a big improvement on that little HF flux core machine. Not saying that the HF welder is awesome, by any means, but it converts it from a pile of useless crap to a functional machine, for sure.
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Old 12-05-2017, 11:25 PM   #2363
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That Lincoln wire is a big improvement on that little HF flux core machine. Not saying that the HF welder is awesome, by any means, but it converts it from a pile of useless crap to a functional machine, for sure.
Yea they're ok when you figure them out I built this whole jeep with one, spring hangers, bumper, traction bar hell even the driveshaft and everything works great. I have a Lincoln stick welder for thicker stuff but didn't touch it for this
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Old 12-06-2017, 12:09 AM   #2364
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That's a badass YJ. Pretty on par with the MJ you posted up in the picture thread.
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Old 12-06-2017, 12:47 PM   #2365
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That's a badass YJ. Pretty on par with the MJ you posted up in the picture thread.
Thanks and I don't have an mj that's my xj that I cut up and welded the rear doors shut. I gotta get the pic off my computer to start a build thread on here.
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Old 12-06-2017, 09:52 PM   #2366
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Thanks and I don't have an mj that's my xj that I cut up and welded the rear doors shut. I gotta get the pic off my computer to start a build thread on here.
Ugh... yeah I knew that, but my brain made me type MJ anyway
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