Try http://www.speer-racing.de/speer_uno.htmFlood said:Does UNO have a web site?
...or check out this thread http://tlzone.net/forums/showthre...&threadid=18251chelapa said:
I am actually researching the prices of material at this moment. (Ulitmate Go-Kart) I cannot find any Cho-moly with similar strengths close to the price of AL. The best I could do was matching some Chro-moly with .065" wall thickness compared to 6061 T-6 AL with .125 wall thickness, the AL cost roughly half the Chro-moly. I know there is a strength difference, but if I knocked the wall thickness down on the Chro-moly to match the AL price it would not have the required strength. Plus AL is a lot easier to work with in my book.Rupes said:Just a bare frame in large diameter alloy tubing I'm guessing around $3000-$3500 US :O Cheaper in steel I'd imagine.
Tube rigidity,ductility and yield will determine the tube and wall thickness......4130 has a higher ridgitity compared to most carbon tubes,so the wall thickness can be reduced in some cases with an increase in OD ....... It is far easier in a Street frame to use a good grade Seamless carbon tube of around 1 1/8 in or bigger and .060 wall,easy to weld,less drama with heat affected joint's etc etc...i believe Spondon etc use an Alloy in the 7000 series,that has bonus properties regarding post heat welding stress's .. Alloy allows bigger sections but the weight saving is minimal compared to steel(by weight),you could do the same section at a much thinner wall that would match the alloy but would crack..catch 22.....that was the thinking behind the first YZR 500's and their prototype Deltabox's,same weight as steel but bigger sections for a more ridgit platform...fwiwimhoyeller_twin said:I am ............... in my book.
:confused Science has nothing to do with the real world , Diameter x Wall thickness :O .........Both Spondon and JMC use 7020 the strongest weldable aluminium available not to be confused with Tooling plate..and once again Post weld heat affected joint's..6061 has some good properties,but mainly mechanical by state ......... i broke my own rule again about staying out of these threads :lolyeller_twin said:Yeah, I know all about material sciences. ....
One more thing, 7000 series AL is not considered weldable. 2000 series AL is "Aircraft" and not really welded, more bolting and fastening.
Science has a lot to do with real world. :rant Okay I will admit that I never listen to what the books say. But this time I actually tested out my material since the machines were avaliable. Tubing shape has a large affect on rigidity too. But I don't feel like looking in my book for that crap, call me lazy. After further review, maybe 7000 series can be welded, it's just 2000 that cannot, oppps. Your a welder by trade (right?) and you have much more experience than me, so I will leave it at that. I was just a passing on what I have found and know.TLDV8 said::confused Science has nothing to do with the real world , Diameter x Wall thickness :O .........Both Spondon and JMC use 7020 the strongest weldable aluminium available not to be confused with Tooling plate..and once again Post weld heat affected joint's..6061 has some good properties,but mainly mechanical by state ......... i broke my own rule again about staying out of these threads :lol
:confusedjbirkle- Nice frame. How much time do you have in that? What material? And what's it for? Use a jig to square everything up? Questions questions questions, I know. [/B]
EXACTLY how I'm gonna get my RGV on the street. :deviousRupes said:But what if you've already done all that
Your right about the JMC too, it uses a solid half inch thick axle and aluminium sleeves. I had mine made with bottom bracing. Complete with the extra bracing, brackets, axle, bearings etc its still lighter than the TLS non braced, completely stripped of everything swingarm that it replaced.
Title the frame?? Over hear the frame needs a number stamped on the headstock and a compliance plate riveted to the frame. If I ever did it I'd just stamp the new frame with the same number and attach the compliance plate and just store the old frame :O