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WOW! Bending 2" X .125 wall DOM manually is not fun.

No matter what bender or tubing you are using, make some practice bends first. I also suggest buying the Bend-Tech software. Dude works out of his house but designs an easy to use program. I used it for every bend in my truck. Did not waist one bend. You do not have to be a math guru to use it.
 
No matter what bender or tubing you are using, make some practice bends first. I also suggest buying the Bend-Tech software. Dude works out of his house but designs an easy to use program. I used it for every bend in my truck. Did not waist one bend. You do not have to be a math guru to use it.


I have Bend-Tech Software but just have never used it. Here is a thread of the tube bunper I made without using the software, just math and common sence. didn't waste a single piece of tube.

http://coloradok5.com/forums/showthread.php?t=181891

http://coloradok5.com/forums/showthread.php?t=216403

And a couple of updated pics. This is just 2" HREW

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Rob,

What bender are you using, a JD2 type? Also, are you running a 180 degree die or 90, or maybe you have both?



I have a M-Tech NE5 bender, dies I have are 1 1/4", 1 3/4", and 2" all dies will bend more then 180 deg. Its not the greatest bender but it does the job. Its basically just like the pro tools 105 bender, just not painted up. I had it powder coated.
 
Probably a dumb question but you have it mounted to the frame somehwere and not just the body...

Frame is double walled and welded from inside also. I also sleeved the tubing with a insert in the top that goes through both plates and into the lower tubing so the bolts did not have to work as sheer points.

Front mount to frame and shock tower.
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Center mount to frame.
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Rear mount to frame.
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Yes, that is Moab mud. Someday I may wash it out.
 
Yes, that is Moab mud. Someday I may wash it out.[/QUOTE]

I have Moab mud on my truck from BB06 :doah:
Beautiful fab work as usual :bow:
 
Sorry guys, but heat it and work fast, like a Blacksmith.

Heating DOM will kill its heat treatment.

DOM is stronger than HREW because its cold rolled (work hardened). Heating it will make it considerably weaker in the HAZ.

Of course bending it messes with it too, but I wouldn't (and haven't needed to) heat any tubing I was bending.
 
Im not going to heat it, Im just going to bust my ass till I get hydro.
 
Yeah like welding the joints is making a snowman.

And of course welding also kills the heat treatment.

Just making sure people are aware that heat destroys the heat treatment on DOM tubing. The more of the tubing that retains the best properties the better IMO.
 
if you shot-peened the weld joints, would it regain some of it's strength? put some compressive stresses on the surface?
 
if you shot-peened the weld joints, would it regain some of it's strength? put some compressive stresses on the surface?

I don't know enough about welding to answer that but the bottom line is that the heat will destroy the heat treatment on the (DOM) tubing.

The heat affected zone (HAZ) is generally the weakest part of a welded part and if it fails it will fail near the weld (the weld itself should be stronger than everything else).

IMO the HAZ from welding isn't generally anything to be worried about. Tubing (or cages) doesn't generally shear near a weld joint. Bending, crushing and denting are really what you're concerned about, hence my comment about trying to keep the unsupported lengths of tube (bends, for example) as strong as possible.
 
if you shot-peened the weld joints, would it regain some of it's strength? put some compressive stresses on the surface?

I'm no expert, but I would think so to some degree. Shot peening is basically a type of cold working, but it is usually used to prevent fatigue issues (compressive residual stress helps prevent fatigue failures) - but fatigue is not a problem with cages.
 
I'm no expert, but I would think so to some degree. Shot peening is basically a type of cold working, but it is usually used to prevent fatigue issues (compressive residual stress helps prevent fatigue failures) - but fatigue is not a problem with cages.
:thumb: great points.
 
I bent up a hoop today thanks to the help of my 6 yr old. He was a big help supporting one end while I got the bender setup. dont have a pic but I will take some tomorrow, plan on bending more tube tomorrow.
 
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