Typically the elastic modulus of the carbon compositec is Anywhere between aluminium and steel depending on fibre orientation and percentage that is fiber and percentage epoxy. It varies a lotcjperformance wrote: ↑Thu Nov 01, 2018 10:02 pm Pushrods, rockers, blower rotors , pistons, aswell as carbon ceramic flywheel.
How stiff can a carbon fiber item be made? Thinking pushrods and rockers for big SR cam etc.?
Carbon Fiber connecting rods from AWA Composites/SEMA?
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
Id guess that different epoxies would give a different result? I really know very little about CF.digger wrote: ↑Thu Nov 01, 2018 11:00 pmTypically the elastic modulus of the carbon compositec is Anywhere between aluminium and steel depending on fibre orientation and percentage that is fiber and percentage epoxy. It varies a lotcjperformance wrote: ↑Thu Nov 01, 2018 10:02 pm Pushrods, rockers, blower rotors , pistons, aswell as carbon ceramic flywheel.
How stiff can a carbon fiber item be made? Thinking pushrods and rockers for big SR cam etc.?
Craig.
Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
Yes particularly as a function of temp, also there are different fibers as well.cjperformance wrote: ↑Thu Nov 01, 2018 11:18 pmId guess that different epoxies would give a different result? I really know very little about CF.digger wrote: ↑Thu Nov 01, 2018 11:00 pmTypically the elastic modulus of the carbon compositec is Anywhere between aluminium and steel depending on fibre orientation and percentage that is fiber and percentage epoxy. It varies a lotcjperformance wrote: ↑Thu Nov 01, 2018 10:02 pm Pushrods, rockers, blower rotors , pistons, aswell as carbon ceramic flywheel.
How stiff can a carbon fiber item be made? Thinking pushrods and rockers for big SR cam etc.?
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
Ok cool, as said i really know squat about CF, its strong and light thats it really, none of the techy stuff.digger wrote: ↑Thu Nov 01, 2018 11:24 pmYes particularly as a function of temp, also there are different fibers as well.cjperformance wrote: ↑Thu Nov 01, 2018 11:18 pmId guess that different epoxies would give a different result? I really know very little about CF.
So its definitely feasible to use as a piston?
Could we see full CF rotating kits one day, possibly blocks, heads etc?
Craig.
Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
I think what everyone here is looking at is another Silverback carb.
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
No this just spurred me to think more about CF possible uses and seek some info.
Craig.
Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
Its mature technology. If it was feasible F1 would have made those components long ago and their use would be trickling down. Meanwhile incremental improvements in traditional materials continues.cjperformance wrote: ↑Thu Nov 01, 2018 11:53 pmOk cool, as said i really know squat about CF, its strong and light thats it really, none of the techy stuff.digger wrote: ↑Thu Nov 01, 2018 11:24 pmYes particularly as a function of temp, also there are different fibers as well.cjperformance wrote: ↑Thu Nov 01, 2018 11:18 pm
Id guess that different epoxies would give a different result? I really know very little about CF.
So its definitely feasible to use as a piston?
Could we see full CF rotating kits one day, possibly blocks, heads etc?
Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
I suspect if rules allowed it they would haveMomus wrote: ↑Fri Nov 02, 2018 12:44 amIts mature technology. If it was feasible F1 would have made those components long ago and their use would be trickling down. Meanwhile incremental improvements in traditional materials continues.cjperformance wrote: ↑Thu Nov 01, 2018 11:53 pmOk cool, as said i really know squat about CF, its strong and light thats it really, none of the techy stuff.
So its definitely feasible to use as a piston?
Could we see full CF rotating kits one day, possibly blocks, heads etc?
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
I see merit in both of those answers!digger wrote: ↑Fri Nov 02, 2018 12:49 amI suspect if rules allowed it they would haveMomus wrote: ↑Fri Nov 02, 2018 12:44 amIts mature technology. If it was feasible F1 would have made those components long ago and their use would be trickling down. Meanwhile incremental improvements in traditional materials continues.cjperformance wrote: ↑Thu Nov 01, 2018 11:53 pm
Ok cool, as said i really know squat about CF, its strong and light thats it really, none of the techy stuff.
So its definitely feasible to use as a piston?
Could we see full CF rotating kits one day, possibly blocks, heads etc?
Craig.
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
At 18K a set, I suspect someone might try and justify the price point.
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
That's just an employee. Arthur Warfield is the founder, I thought. Athur Warfield is also the AW in AWA Composites. At least that's how I understood it.Nefario wrote: ↑Thu Nov 01, 2018 4:58 pm Awful lot of square corners there for a composite part.... A bit of background research reads like the founder has been a successful entrepreneur in dental technology and as they raise funding they plan to hire or contract the appropriate talent to actually develop specific parts.
https://www.crowdfunder.com/user/193368
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bigjoe1 wrote:By the way, I had a long talk with Harold(Brookshire) last year at the PRI show. We met at the airport and he told me everything he knew about everything.It was a nice visit. JOE SHERMAN RACING
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
And what about all of those other parts? Silverback carbs, too? The pistons are called a carbon composite. Possibly 3d printed using an additive process? Advancement in 3d printed parts seems to be coming along quite nicely. I came across a company doing carbon something 3d printing a while back.
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bigjoe1 wrote:By the way, I had a long talk with Harold(Brookshire) last year at the PRI show. We met at the airport and he told me everything he knew about everything.It was a nice visit. JOE SHERMAN RACING
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
According to their website, some of their projects include things on the Lockheed Martin F35 Lightning II. If they've got the talents to gain the respect of their peer group in aviation, wouldn't that give them at least 1 leg to stand on and not just automatically assume whatever they produce is no good?
Reading about Lamborghini's upcoming carbon fiber rods, it doesn't seem that far fetched that this place could be using a similar technique to produce a forged composite rod. It(forged composites) does seem to be one of the things they do.
Reading about Lamborghini's upcoming carbon fiber rods, it doesn't seem that far fetched that this place could be using a similar technique to produce a forged composite rod. It(forged composites) does seem to be one of the things they do.
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bigjoe1 wrote:By the way, I had a long talk with Harold(Brookshire) last year at the PRI show. We met at the airport and he told me everything he knew about everything.It was a nice visit. JOE SHERMAN RACING
Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
Carbon composites like brake rotors start out as carbon fiber, but they get baked at ultrahigh temperatures to alter the materials property further. You end up with a kind of solid brick of carbon that still has a "grain structure" in it. (Very loose description of the process - I'd only read about it a couple times)midnightbluS10 wrote: ↑Fri Nov 02, 2018 5:35 amAnd what about all of those other parts? Silverback carbs, too? The pistons are called a carbon composite. Possibly 3d printed using an additive process? Advancement in 3d printed parts seems to be coming along quite nicely. I came across a company doing carbon something 3d printing a while back.
Re: Carbon Fiber connecting rods from AWA Composites/SEMA?
There is a printer company called carbon 3d, but they don't actually print with carbon material....its a light cure technology but it's much faster because they claim its continuous vs layered. The truth is the build platform does move continuously but the the cure is a series of projected images like standard DLP (digital light processing). A HUGE problem with most printers is the the material properties in the x-y plane (on the build platform) are much better than in the z(build motion direction) but the carbon machine gets you almost as good in the z....about 80-90% as good.midnightbluS10 wrote: ↑Fri Nov 02, 2018 5:35 am
Advancement in 3d printed parts seems to be coming along quite nicely. I came across a company doing carbon something 3d printing a while back.
Warping is also a problem with all printers, shrinkage happens during polymerization and can be accounted for but the internal stress are much harder to handle and cause dimensional issues.
The other problem with these liquid bath or inkjet type printers is they are very limited on particle size within the liquid....so CF fibers in the part are out of the question, at least with current technology.
Short version is don't hold your breathe waiting for printed CF connecting rods
Mark
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