Cosworth carbon, what do YOU want!
29-11-2011, 05:58 PM
#322
Pre-Preg
This place just quoted my work around £35 per M² for 40% resin 200gsm 2x2 twill (120 deg cure) with a 10 M² minimum order where other places want 25M² minimum.
http://www.prfcomposites.com/
All I have managed so far is to make a flat sheet on glass, 3 layers works out 0.7mm. All vac bagged in a oven made from cooker parts, masterboard and aluminum extrusions.
http://www.promat.co.uk/products/fir...sterboard.aspx
http://www.prfcomposites.com/
All I have managed so far is to make a flat sheet on glass, 3 layers works out 0.7mm. All vac bagged in a oven made from cooker parts, masterboard and aluminum extrusions.
http://www.promat.co.uk/products/fir...sterboard.aspx
29-11-2011, 08:30 PM
#327
This place just quoted my work around £35 per M² for 40% resin 200gsm 2x2 twill (120 deg cure) with a 10 M² minimum order where other places want 25M² minimum.
http://www.prfcomposites.com/
All I have managed so far is to make a flat sheet on glass, 3 layers works out 0.7mm. All vac bagged in a oven made from cooker parts, masterboard and aluminum extrusions.
http://www.promat.co.uk/products/fir...sterboard.aspx
http://www.prfcomposites.com/
All I have managed so far is to make a flat sheet on glass, 3 layers works out 0.7mm. All vac bagged in a oven made from cooker parts, masterboard and aluminum extrusions.
http://www.promat.co.uk/products/fir...sterboard.aspx
Raj's work is bloody awesome and alot of blood n tears along the way no doubt!!!
__________________________________________________ _____________
Looking forward to seeing your new parts Raj, get that heat sheild made like the original one
Put your names down if interested...
1 -
29-11-2011, 09:58 PM
#328
BANNED
BANNED
How are these intended to be fitted to the underside? If its simply binded then if someone is will to send us some templates we would be happy to offer a xmas/new year group buy on them
Cheers lads for the kind words
30-11-2011, 08:04 AM
#329
well first you need to learn how to make the molds ! which i might add you never stop learning that , then how to lay each mold up as there all different in respect of how the material goes in ! im coming to realise that even infusion even tho very good isnt the best way to do carbon I.E weave straightness and strengh so going to start to do stuff in prepreg in the new year
07-01-2012, 07:05 PM
#333
BANNED
BANNED
Hello,
heat shield is all done, I have a few other bits for Jimbo which have only now been finished and will be sent out Monday so he will be able to give me some feedback on the fitment/quality of the shields etc. I have had to make this pretty much blond as he needed to take the bumper away when he popped up to us last year.
Once he has offered up to his saph and confirmed fitment then it will be available to the public or it may need modding further, we will see.
Will get a pic up tomorrow to show how the final one has ended up
heat shield is all done, I have a few other bits for Jimbo which have only now been finished and will be sent out Monday so he will be able to give me some feedback on the fitment/quality of the shields etc. I have had to make this pretty much blond as he needed to take the bumper away when he popped up to us last year.
Once he has offered up to his saph and confirmed fitment then it will be available to the public or it may need modding further, we will see.
Will get a pic up tomorrow to show how the final one has ended up
07-01-2012, 07:41 PM
#339
BANNED
BANNED
Was let down last year when someone was going to provide some blanks to mould so never bothered to follow up
I know Dan @ Rapid ford sells them
Hope this helps mate
I know Dan @ Rapid ford sells them
Hope this helps mate
07-01-2012, 10:07 PM
#347
no jim thats the cost but if you think once you have built one and its passed then to retail it it would be around 4k so sell 20 you would have all costs back lol
all this main stream carbon takes long enough to produce and in realistic terms its weak and no where near aero space tech . Its like all the people buying carbon roofs and think there safe doing so because a m3 has one well i wonder how many companies have these tested like bmw have ? i bet they havnt as all the design in meterial strengh and testing would be many times the production cost
all this main stream carbon takes long enough to produce and in realistic terms its weak and no where near aero space tech . Its like all the people buying carbon roofs and think there safe doing so because a m3 has one well i wonder how many companies have these tested like bmw have ? i bet they havnt as all the design in meterial strengh and testing would be many times the production cost
07-01-2012, 10:15 PM
#349
all this main stream carbon takes long enough to produce and in realistic terms its weak and no where near aero space tech . Its like all the people buying carbon roofs and think there safe doing so because a m3 has one well i wonder how many companies have these tested like bmw have ? i bet they havnt as all the design in meterial strengh and testing would be many times the production cost
Even stuff like resin infusion and pre-preg wont be much better unless you exactly copy expensive tested stuff and even then its hit and miss to know how it was exactly processed.
You ideally need some proper engineers to design your part lay up if you want real optimum strength.
However most people just want a part thats lightweight and looks "good" so for most people crash testing is irrelevant.
07-01-2012, 10:24 PM
#350
exactly. all this wetlay stuff is only a bit better than GRP in strength terms in an impact.
Even stuff like resin infusion and pre-preg wont be much better unless you exactly copy expensive tested stuff and even then its hit and miss to know how it was exactly processed.
You ideally need some proper engineers to design your part lay up if you want real optimum strength.
However most people just want a part thats lightweight and looks "good" so for most people crash testing is irrelevant.
Even stuff like resin infusion and pre-preg wont be much better unless you exactly copy expensive tested stuff and even then its hit and miss to know how it was exactly processed.
You ideally need some proper engineers to design your part lay up if you want real optimum strength.
However most people just want a part thats lightweight and looks "good" so for most people crash testing is irrelevant.
07-01-2012, 10:37 PM
#353
exactly. all this wetlay stuff is only a bit better than GRP in strength terms in an impact.
Even stuff like resin infusion and pre-preg wont be much better unless you exactly copy expensive tested stuff and even then its hit and miss to know how it was exactly processed.
You ideally need some proper engineers to design your part lay up if you want real optimum strength.
However most people just want a part thats lightweight and looks "good" so for most people crash testing is irrelevant.
Even stuff like resin infusion and pre-preg wont be much better unless you exactly copy expensive tested stuff and even then its hit and miss to know how it was exactly processed.
You ideally need some proper engineers to design your part lay up if you want real optimum strength.
However most people just want a part thats lightweight and looks "good" so for most people crash testing is irrelevant.
so in effect if you infused a item with 4 layers approx 1.5 mm thicknessit wouldnt be much stronger than 2 layers of carbon and 2 layers of glass cloth
08-01-2012, 11:55 AM
#357
Irregular Poster
That carbon cage is awesome!!
I worked on the Airbus A380 and in the cargo there is carbon struts holding the main deck floor and one smaller one (about 2 ft long) was damaged and it was €3,500 to replace!!!! Definately not cheap
I worked on the Airbus A380 and in the cargo there is carbon struts holding the main deck floor and one smaller one (about 2 ft long) was damaged and it was €3,500 to replace!!!! Definately not cheap
08-01-2012, 12:01 PM
#358
true maxwell, but its designed primarily to take a load along the length of the tube, not across it. the problem in a big car crash is yes, most cages are strong because the load is spread down the length of the tubes hence the frame shapes, but also there will be side loadings the tube must resist too. carbon tubes made by affordable means (eg roll wrapped) arent that strong across the tube and will eventually fail totally.
plus airbus has a multi-billion research budget to get the specs in limits, most motorsport teams and certainly almost all petrol heads do not
that is why steel in its various forms is used. Its a good compromise solution in that it is tough even if impacted on a side impact failing in a more predictable way by deforming first. You can design all that into the cage quite easily through a combination of CAD/simulation and crash testing. Plus steel is cheap.
plus airbus has a multi-billion research budget to get the specs in limits, most motorsport teams and certainly almost all petrol heads do not
that is why steel in its various forms is used. Its a good compromise solution in that it is tough even if impacted on a side impact failing in a more predictable way by deforming first. You can design all that into the cage quite easily through a combination of CAD/simulation and crash testing. Plus steel is cheap.
Last edited by Psycho Warren; 08-01-2012 at 12:05 PM.
08-01-2012, 12:05 PM
#359
Irregular Poster
True!!! Suppose any blows to carbon fibre components can cause "back side blow out". Looks fine to the untrained eye, but behind the wefts snd weaves have split and there is a superficial weakness!
And people genuinely think that aerospace tech is unimaginable....majority of it is actually straight forward and simple
And people genuinely think that aerospace tech is unimaginable....majority of it is actually straight forward and simple
