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  1. #31
    Baja

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    Thanks for the input Portager, can really tell you know what your talking about.

    The end goal will be that these skids plates can holding the entire weight of the vehicle, I'm hoping a half inch worth of Aluminum will get the job done. I not sure with the grade of Aluminum yet because I haven't heard from my laser guy. I also understand your concern about over heating and it will be something I watch out for and may influence the design.

    However if aluminum fails I will be going to 3/8 steel because I'm really trying to avoid the lattice design, but who know that maybe the only effective design when all thing are considered.


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  2. #32
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    My personal opinion is that it should be made of steel, because of the softness of aluminum. Crashing down on rocks it won't take long to gouge aluminum up. I know that the DOI company was able to make their design with 3/16 steel and it seems pretty sufficient as I know one person that I wheel with has it.

  3. #33
    Baja

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    Guys hold you horses on the whole aluminum debate, it will be literally nothing for me to switch over to steel or any other material.

    Actually... come to think of it... when I finish the design I could easily let you guys choose the material it's made out of.


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  4. #34
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    Of course a plain sheet of steel will be stronger the plain sheet of aluminum. But clever structurally designed aluminum part can be strong enough... Can't wait to see what you will come up with

  5. #35
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    I personally would like to see your design made out of 3/16" steel (not stainless). Preferably 1/4" thick with 1" wide laser cut slots from front to back like those welded on plates for the stock UCP. THAT is what I would spend my money on. The extra 1/16" should only add about 20 lbs to the weight of the skids, around 110 lbs total?

    weight= thickness x L x W x .284

  6. #36
    Baja

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    Quote Originally Posted by rsc View Post
    around 110 lbs total? weight= thickness x L x W x .284
    Nope... exactly why I want aluminum, with my design it would be 288 pounds if made of steel


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  7. #37
    Baja

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    Quote Originally Posted by rsc View Post
    around 110 lbs total? weight= thickness x L x W x .284
    DOH feet to inch, I mean steel would be around 80 pounds vs aluminum at half inch thick only being 55 pounds

    Also aluminum doesn't need paint.


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  8. #38
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    I don't think painting and rust prevention is going to be a problem, however I do worry about the bend/yield strength of aluminum and multiple hit deformations over time, even at 1/2" thick. Aluminum is roughly 4/5ths the strength of steel and 3 times lighter but I don't think its ductile properties are the best for this application. After all, carbon fiber composite is 5 or 6 times stronger than steel and feather light in comparison, but it would not be a good material for a bash plate.

    What do you calculate the force of a hit to the skid plate to be? Lets say a 6,000lb vehicle dropped from 18" on a 3 square inch contact surface? Will aluminum hold up to repeated hits without cracking? How much will the aluminum bend before it doesn't spring back any more and dents versus steel? Just throwing it out for thought.

  9. #39
    Street Tire
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    I'm just curious has anybody ever used UHMW for skid plate material on jeeps or trucks? I know its used pretty often in the UTV world
    leveled, bfg km2, dual batteries, gobi rack, piaa 580, ipod connectivity



  10. #40
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    I know some Jeep guys running that on their skid plates for a smoother slide over rocks, but they still have steel under it for strength.

  11. #41
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    not looking for an argument. but there is a reason why H1 owners swap out their factory Aluminum rockers for factory and or aftermarket Steel rockers.

  12. #42
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    Quote Originally Posted by Expendable View Post
    not looking for an argument. but there is a reason why H1 owners swap out their factory Aluminum rockers for factory and or aftermarket Steel rockers.
    Fine, Fine, I'll be moving the design to quarter inch steel in light of all this opposition.


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  13. #43
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    In for the final product

  14. #44
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    How long? I am itching to buy some UCP after Christmas but I can wait until March. I was going to get the GM OEM but I am intrigued at a beefier solution. I would suggest laser cutting in some slots for drainage
    2007 Hummer H3. Adventure Package. LT285/75R16 Kelly TSR

  15. #45
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    Quote Originally Posted by Schwarttzy View Post
    Fine, Fine, I'll be moving the design to quarter inch steel in light of all this opposition.
    I was in no way trying to change your mind. I'm just bringing up years of experience that H1 owners have had.

    I do not have a H3. most experience I have with them is driving two 06s when my mom and brother each had one years back. and you can't directly compare a H1 and a H3. but I figure you can learn from their experiences.


 

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