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Monday saw Aston Martin Red Bull release the first pictures of its brand new RB14, just before the car was sent out on a wet Silverstone track for a shakedown and filming opportunity.
5 axis mill? Probably starts out as a rough cast though.tok-tokkie wrote: ↑24 May 2018, 18:43How are the bell cranks manufactured?
https://uploads.tapatalk-cdn.com/201805 ... 0ec078.jpg
The two pieces with the centre spring between them. I assume they are lost was castings.
My money is on CNC of billet material. A casting, by any method (investment, pressure, die) will always have the risk of porosity & inclusions. For parts this small and highly loaded you need to start with material that has impecable qualities, hence billet. Regarding 'no visible machining marks' it is common on highly loaded parts to do handwork to polish the surface and then do a shot-peened finish. I have a Pankl con-rod that has the same production path as I am suggesting they used here...tok-tokkie wrote: ↑24 May 2018, 18:43How are the bell cranks manufactured?
https://uploads.tapatalk-cdn.com/201805 ... 0ec078.jpg
The two pieces with the centre spring between them. I assume they are lost was castings.
Can you brighten the bottom image so that the bargeboards can be seen? For science.zioture wrote: ↑24 May 2018, 23:00https://scontent-mxp1-1.xx.fbcdn.net/v/ ... e=5B8545BA
https://scontent-mxp1-1.xx.fbcdn.net/v/ ... e=5B88C33A
All photos here http://www.newsf1.it/foto-gallery-baku-gp/
Must cost a fortune, just the raw materials are expensive, but the machining costs. Well at least to mere mortals like myself, goes to show the craftsmanship and dedication every component is built with. It's really a shame that so many technical details are hidden behind bodywork, and stationary photos.AngelicPrincess wrote: ↑25 May 2018, 19:12Bell cranks are normally made of Ti, rough machined and stress relieved, then further machined to a Ra 0,8 surface finish. And as said above shot peened. Hence the lack of machining marks. Surface finish on a highly stressed component is extremely important to prolong life.
While I am at it, it is not unsual to see hudraulic conponents such as the power assisted steering rack have a golden look. That is TiN (Titanium Nitrate) coating for corrosion resistance.
Yes very very expensive, but this is f1. I wouldn't call it craftsmanship. Nowadays the designer produces the CAD drawings to extreme detail, another one does the tool path programming and a machinist sets it up and presses go. they try to eliminate the human factor when manufacturing as much as possible, we humans just introduce inaccuracies, and in a world where everything runs to very tight tolerances thats unacceptable.godlameroso wrote: ↑25 May 2018, 21:53Must cost a fortune, just the raw materials are expensive, but the machining costs. Well at least to mere mortals like myself, goes to show the craftsmanship and dedication every component is built with. It's really a shame that so many technical details are hidden behind bodywork, and stationary photos.AngelicPrincess wrote: ↑25 May 2018, 19:12Bell cranks are normally made of Ti, rough machined and stress relieved, then further machined to a Ra 0,8 surface finish. And as said above shot peened. Hence the lack of machining marks. Surface finish on a highly stressed component is extremely important to prolong life.
While I am at it, it is not unsual to see hudraulic conponents such as the power assisted steering rack have a golden look. That is TiN (Titanium Nitrate) coating for corrosion resistance.
