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Post by spaz12 on Jun 23, 2016 6:08:59 GMT -5
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Post by arkie on Jun 23, 2016 6:21:53 GMT -5
So they came up with a way to do it faster and slap the name "forged" on it. Ok. The CF rods are cool though.
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Post by FrankenMech on Jun 25, 2016 1:57:29 GMT -5
They are way behind. I used to make compression molded (not forged) composite parts clear back in the early 80's from very advanced materials. They took less than a hour to cure also, some as little as 15 minutes. CNC filament winding is another layup technique. Metal bonding is another way to make high strength components.
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Post by aeroxbud on Jun 25, 2016 4:28:59 GMT -5
Can you imagine how high an engine would rev with carbon fiber rods. Just the thing for a GY6  |
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Post by jkeney on Jul 3, 2016 15:13:14 GMT -5
This was fascinating to me.
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Post by Deleted on Jul 3, 2016 15:50:34 GMT -5
Yes, back in the mid 1980's we machined ceramic composite connecting rods for Porsche's racing program. They were experimenting with the right combination of ceramic/ aluminum. We also made ceramic piston rings and pistons for GM's adiabatic engine program. Imagine an engine running with no need for a cooling system? No water channels in the block, no water pump or radiator, hoses, thermostats, and, the hotter an ice can run, the more efficient it is.
The ceramic material is lighter, and stronger, and harder and can take more heat, than any metal known.
Bill
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Post by FrankenMech on Jul 3, 2016 17:20:18 GMT -5
Ceramics are getting better all the time. They even have transparent aluminum now.  |
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Post by spaz12 on Jul 3, 2016 18:28:28 GMT -5
Ceramics are getting better all the time. They even have transparent aluminum now. But don't ceramics shatter real easy? |
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Post by Deleted on Jul 3, 2016 18:35:49 GMT -5
Ceramics are getting better all the time. They even have transparent aluminum now. But don't ceramics shatter real easy? Depends on the materials involved. Transformation toughened zirconium oxide spheres can be bounced off of concrete all day long without any damage. We used to demonstrate this at trade shows...it would bounce almost like a super ball. We also made compression and tension springs out of it. Bill |
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Post by jeff84 on Jul 3, 2016 18:55:33 GMT -5
Can you imagine how high an engine would rev with carbon fiber rods. Just the thing for a GY6 aren't the springs the limiting factor of how high you can rev a 4 stroke? |
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Post by spaz12 on Jul 3, 2016 18:56:12 GMT -5
Interesting.
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Post by Deleted on Jul 3, 2016 19:06:56 GMT -5
Can you imagine how high an engine would rev with carbon fiber rods. Just the thing for a GY6 aren't the springs the limiting factor of how high you can rev a 4 stroke? Well, once you have made the rest of the engine capable of surviving high rpm, I would think that valve float would be the limiting factor. In other words, I agree. Bill |
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Post by acvw74 on Jul 3, 2016 19:43:22 GMT -5
aren't the springs the limiting factor of how high you can rev a 4 stroke? Well, once you have made the rest of the engine capable of surviving high rpm, I would think that valve float would be the limiting factor. In other words, I agree. Bill Didn't Ducati fix that when they made the (for lack of a better description) connecting rod valves? The valves are connected to the cam like pistons on a crank. |
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Post by Deleted on Jul 3, 2016 19:50:37 GMT -5
I don't know but if they were able to do that, and it works, then it is a brilliant idea.
Bill
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Post by acvw74 on Jul 3, 2016 20:06:16 GMT -5
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