@FrankGrimes: It is the starting point for expensive technology to be integrated into cheaper cars. Like how airbags were once expensive options and now the cheapest econobox has at least two. #lexuslfa
Basically, Toyota has created a automated process that can wrap an aluminum sub-frame in carbon-fiber. Hitherto, sheets of CF where laid out layer-by-layer by hand and permeated with resin before its cured in an autoclave. Toyota has developed an obviously expensive bespoke machine that can weave dry fiber around a three-dimensional object.
The first obvious benefit is that its one contiguous sheet of carbon-fiber and not separate layers. There is an important QA/QC element to any carbon fiber product, this is especially important for load bearing components, and having CF layered one upon the other by hand makes it susceptible to defects like micro-cracking and other errors that can make itself apparent later in the products lifetime.
Secondly, the binding of carbon-fiber to aluminum (or any metal) has always been challenge. The conventional method is using simple threaded inserts that bind the CF to the aluminum. Toyota have found a unique method where it has a flanged collar where the dry fiber is weaved around the aluminum using this machine.
For larger volume production cars, this method is beneficial because it allows for carbon-fiber usage only on components where it is necessary and still allowing the usage of conventional metals like aluminum/steel. Atop that, this method is automated and not done by hand. For future Toyota products, some key-components can use this CF process sparingly to strengthen specific metal components without the raising costs dramatically. #lexuslfa
@Scaramanga: Wow thank you. I thought this was just some stupid machine that simply weaved the fibers to make a carbon fiber pillar for bragging rights.
Thanks to your post I now see the many benefits and respect what a breakthrough it is. #lexuslfa
@Scaramanga: Excellent reply, which once again goes to show that much like the space program, the real point of the LF-A is the inevitable spin-off technology that trickles down to the average Joe. #lexuslfa
@LuciferV8: This will take decades to trickle down. Impressive, but the fact that there are only 2 in the world points to the fact that this is a very complicated process. It is one thing to make 500 for an overprices pseudo supercar, it is a whole other thing to do it on a mass scale. #lexuslfa
@rigidjunkie: There are more than two carbon-weaving rotary looms in the world. See above. There are only two of Toyota's version. You're right, though. It's difficult to conclude - at least from the video - that this technology is scalable to mass-production.
I think the whole "trickle-down" argument for the LFA's existence is a ruse. Toyota uses it to justify to its shareholders, potential customers, and a gullible automotive press the pouring of thousands of man-hours and hundreds of millions of dollars in research and development into things like this loom - which seems to serve no purpose other than constructing a couple of bits for a very limited-production car. This, in turn, is used to justify the $100K-$200K premium over its competition. That premium, in reality, has nothing to do with the superiority of the result, but everything to do with Toyota's attempt to recoup the losses from an excessive, meandering, decade-long exercise in over-engineering. #lexuslfa
@atlasfugged: Good points, I just laugh every time I see another article about this thing, I have even started to use its correct name LAF (pronounced laugh) #lexuslfa
@Racin_G73 - dirt track legend (some day ... maybe): Ah, the memories. My NES and I went through a lot together, from playing RC Pro-Am in grade school to hundreds of hours of RBI II with my roommates in college. When I reclaim the home office, it's going to have a turntable, and I think I'm going to dust off the NES too. #lexuslfa
I don't know why I keep seeing that this is the "1 of only 2 circular looms." maybe of this particular size. i used to work at a company that had 6 of these machines that did this for catheter tubes to give it strength.
@Alfisted: Is there anything special about the dual-tube feature on this rotary loom? Or is that relatively common as well? (not being a smart-ass - I just don't know much about looms). #lexuslfa
Wha? Oh, sorry, I dozed off. I got to thinking of Toyota using this to build Camrys... "Dreamweaver" started playing in my head, and I must've fallen asleep. #lexuslfa
11/02/09
10/30/09
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10/30/09
Basically, Toyota has created a automated process that can wrap an aluminum sub-frame in carbon-fiber. Hitherto, sheets of CF where laid out layer-by-layer by hand and permeated with resin before its cured in an autoclave. Toyota has developed an obviously expensive bespoke machine that can weave dry fiber around a three-dimensional object.
The first obvious benefit is that its one contiguous sheet of carbon-fiber and not separate layers. There is an important QA/QC element to any carbon fiber product, this is especially important for load bearing components, and having CF layered one upon the other by hand makes it susceptible to defects like micro-cracking and other errors that can make itself apparent later in the products lifetime.
Secondly, the binding of carbon-fiber to aluminum (or any metal) has always been challenge. The conventional method is using simple threaded inserts that bind the CF to the aluminum. Toyota have found a unique method where it has a flanged collar where the dry fiber is weaved around the aluminum using this machine.
For larger volume production cars, this method is beneficial because it allows for carbon-fiber usage only on components where it is necessary and still allowing the usage of conventional metals like aluminum/steel. Atop that, this method is automated and not done by hand. For future Toyota products, some key-components can use this CF process sparingly to strengthen specific metal components without the raising costs dramatically. #lexuslfa
10/30/09
10/30/09
Thanks to your post I now see the many benefits and respect what a breakthrough it is. #lexuslfa
10/30/09
Very informative, thank you!
*props* #lexuslfa
10/31/09
10/31/09
11/02/09
11/02/09
11/02/09
I think the whole "trickle-down" argument for the LFA's existence is a ruse. Toyota uses it to justify to its shareholders, potential customers, and a gullible automotive press the pouring of thousands of man-hours and hundreds of millions of dollars in research and development into things like this loom - which seems to serve no purpose other than constructing a couple of bits for a very limited-production car. This, in turn, is used to justify the $100K-$200K premium over its competition. That premium, in reality, has nothing to do with the superiority of the result, but everything to do with Toyota's attempt to recoup the losses from an excessive, meandering, decade-long exercise in over-engineering. #lexuslfa
11/03/09
11/06/09
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10/30/09
10/31/09
10/30/09
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10/30/09
Also, I watched the video and it appears the loom is being run by a second generation ipod. #lexuslfa
10/30/09
@tempesjo: I setup my loom to run off my old NES... I wasn't using it anymore, except to play RC Pro-Am. #lexuslfa
10/30/09
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..
zzz...
Wha? Oh, sorry, I dozed off. I got to thinking of Toyota using this to build Camrys... "Dreamweaver" started playing in my head, and I must've fallen asleep. #lexuslfa
10/30/09
10/30/09
It is just my natural hair. I have been growing it since birth.
(hack)
That'll be 400 thousand dollars. #lexuslfa
10/30/09