By carbonfibreworks - 11/9/2015 8:20:09 PM
We like to push the boundaries at Carbon fibre works LTD and have for some time been working on a technique to reproduce the forged carbon as used by a very well known Italian sports manufacturer,we now have own process and will shortly be adding dates so we can teach you the technique . To register interest and to book this course or any of our other composite training courses PM me or email carbonfibreworks@aol.com. https://www.facebook.com/Carbonfibreworks-ltd-69783772689…/… |
By Dravis - 11/13/2015 12:40:06 PM
"forged Carbon" is a marketing "gimmick" IMHO ...
I think the term comes from the "Drop forging" methods used for forging very strong steel components like crane hooks and chain buckles--
In this process a forge temperature lump of steel is put into a form and a very large drop hammer is used to hammer the top part of the form down to "forge" the steel into the correct shape in one single blow .. it is very impressive when the parts are really large .. 
The term was originally used by one of the hyper-expensive watchmakers .. "Audemars Piquet" to describe the process they used to make high pressure moulded watch-cases out of "shredded" pre-preg, I think they had the term from some french aerospace firm, that had some patents on it from way back in the 80'es
They have a heated stainless steel "drop forge" type mould, that they fill (literally stuff it in with a stick) with a precise amount of "shredded" prepreg and then they close the multi-part mould and put it in a hydraulic press, and heat it up (controlled ramp up, just like normal Prepreg)
The hydraulic press and the precisely controlled amount of prepreg material ensures a very high fibre to resin ratio, and a very homogenous "block" of CF that can then be machined to a precise fit. I do not know what type of prepreg resin they use, but the CF case watches do not seem to ever be very highly polished.
A new Audemars Piquet Royal Oak Offshore Carbon Diver will set you back around 22.000 Euro -- 
I have duplicated the process using both aluminium and stainless steel moulds ..
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