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Cage failures

jeepmauler said:
I'd rather throw time and energy at someting a little different than take the easy route and be sheeple like you:flipoff: Although nowadays
xj's are all over......9-10 years ago not so much
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I can't believe I risked my life riding in that turd:flipoff:, It is one of the reasons i have one in my back yard though, hmmm.
 
TrashJeeper said:
I can't believe I risked my life riding in that turd:flipoff:, It is one of the reasons i have one in my back yard though, hmmm.
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Sup Ryan......woot woot!!

YOU LOVED IT:redneck: Once people go for a ride...they see it's not THAT bad:D

I'm careful-n-stuff:D
 
Just found this weld in add on cage for Jk's, what are your thaughts......

weldincagekit.jpg
 
I would say it sure beats the heck outta what you currently have Kat! One question....where's the front mount??? Is it going to the dash??:yikes:
 
Damnyankee said:
so your saying a cage made with hrew is ok if designed properly, even though it has half the tensile strength of SOME DOM? (1026 CRDOM is about 87Ksi, and HREW is about 45)

therefore you'll need twice the material, and with the added weight your safety factor goes down making it a mute point.

I want to see REAL information here, not speculation and hearsay.

Im not a cage designer, but i know steel. it doesn't matter how good your cage is designed if you use the wrong material. and "DOM" is not necesarily the right material.
:stirpot:
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Bwahh Ha hA hA hA hA!!! you just got the real information dude!!!

Jason C just so happens to know his ****.
 
Damnyankee said:
Okay, I'm going to bestow a little knowledge for those that think DOM is the beats all. (it CAN be the best material)

Dom has a seam, its drawn out while its being Drawn Over a Mandral.
There are different types of DOM.

Structural DOM is NO good for a cage. so just because its DOM does not mean its worth a crap.
Stuctural DOM has as little as 1/3rd flash weld (ya, not full penetration) do you think thats good? DOM can be Hot rolled or cold rolled.

If you want good DOM, it needs to be COLD ROLLED and must be MECHANICAL DOM. (and should be atleast 1020(80ksi) or 1026 (87ksi).

nobody here has touched on 1026 CREW (cold rolled electric weld) people think that because you can see the seam, its no good. well thats BS.
1026 Crew is about 65KSI. (1020 / 1018 is about 60ksi)

people are alos saying that HREW in the right design is OK, but in all honesty its crap for what we use, bends easy. (and only 45ksi)

My EXO cage is :rb: but ts functional. its make of 1026 CREW. (1.5 x .120)
It has survived a roll and it was drug on its roof for about 20 feet. Wll it survive a roll such as the toyota at naches.. No way. I would lke to see a cage (other than a nascar Cromoly cage) hold up to that fall. I highly doubt any cage would.

But i get crap for it because its not DOM, Yet it is stronger than "stuctural DOM"

and Pipe, A500 pipe is stronger than HREW, or sturctural DOM.
The main difference from pipe to tube is pipe is measured fromt the ID and is not as TRUE (because of fabrication tolerances) while Tube is measured from teh OD and is much more "true". The reason we use tubing in mechanical applications is because pipe, but on a lathe or machine tents to wip around because of (for lack of a better word) trueness tolerances.

So the next time somebody says I'm building your Cage from DOM, ask them

what kind of DOM?

(FYI CREW is half the price of mechanical DOM and 75% as strong. While HREW is Very cheap but only 56% as strong as mechanical DOM)

:beer:
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by looking at it how can you tell if the numbers jive?? or if your getting the right stuff when asking for specifics? also on the DOM if it's cold rolled or hot rolled will the seem still remain on the inside? curious mind wants to know..
 
ClarkW said:
Kat, with your wheeling style you need a real cage.:D Good choice if you go with crash.:D
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I have seen his stuff in action and love his totally profesional work.
I thaught my wheelin style was just to go where ever the Jeep pointed and step on the gas pedaland choose a gear if needed.
 
exo cages are built with the design limitations of being wrapped around the body of the vehicle. this minimizes the ability to build it AS STRONG as an internal. a tube structure in the crude shape of the cab of a vehicle cannot be built as strong as an internal cage. sure, it certainly can be built strong enough to take roll overs and some severe abuse, and this is why exo's are preferred by many. you can roll it back over and keep wheeling, and even drive it home. the reason why this is the case, is the long spans some of the tube must make to stretch over the body. this creates weak points. internal cages are smaller, which minimizes this problem.

the sweet thing about an internal cage is that you can literally build a cage around oneself. this means above, beneath, and to your sides, with the seats and harnesses all tied in. this is in case of a catastrophic roll in which the vehicle is completely destroyed around you. safety is maximized because you'll be harnessed into your little safe cage. this is how many racing vehicles are built.

i know much of this info has been stated already, but i felt like just throwing my two cents out there. i've rolled a cageless vehicle down a hill before, and I never want to do it again. I was thinking I was a goner while we were going over. an exo would be nice if i knew i wouldnt roll severely, just a tip here or there and some trail beating... but you can never predict catastrophic failure to not drive over the edge:eeek::haha:

internal to save you and your passenger's well being!:awesomework:
 
So i know an x brace in the b pillar would have stopped the side to side but what stops the cage from pushing forward like it did?The a pillar is used to be straight up and down.
 

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It's like the age old **** you read on pirate. Triangulation...If you were to put a diagonal in where the back window would be that could be a option.
 
Fattz said:
by looking at it how can you tell if the numbers jive?? or if your getting the right stuff when asking for specifics? also on the DOM if it's cold rolled or hot rolled will the seem still remain on the inside? curious mind wants to know..
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If your not an expert, you won't be able to tell. the steel should have the material type printed on it. sometimes i can't tell and i know them well.

DOM weather it be HR or CR will not have a visible seam. thats the hole, drawn over mandrel process.
 

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