Closed CF Shell Manufacture

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Closed CF Shell Manufacture

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LaxFriedrichs	LaxFriedrichs posted 12 Years Ago HOT Topic Details
Group: Forum Members Posts: 58, Visits: 450	Currently I'm undertaking my first CF project, which involves manufacturing a 'closed' shell from CF. My skills, knowledge, and equipment are relatively basic so I'm making two sides of the shell via resin infusion and a Unimould system mould, then I will join them to get my 'closed shell' Not long ago I saw a Youtube video that was shared on here at the Koenigsegg factory. They seemed to be using CNC milled aluminium moulds, composed of two parts, some how laying the CF inside the parts, closing the mould, and then passing a inflatable bladder through two ends. Like this... I'm intrigued by this method, since joining the two sides of my shell will be a very tricky process resulting in an aesthetically and structurally inferior product. How is the CF placed in the two halves of the mould? Where does one source an inflatable bladder? Would this process be compatible for resin infusion? Thanks!
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Drew Diller	Drew Diller posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 35, Visits: 199	Got some results recently... after spending a LONG hiatus insulating and finishing a section of my garage, in which I could better work in the subzero winter Minnesota saw this year. The first pic is straight out of the mold, no machining or polishing done. The second pic is wet sand to 200 grit plus a simple, uneven epoxy topcoat. The third pic is comparing the first carbon lug I made on my own, that had me thinking, "There has to be a better way to do this."
	Reply Like 2
Matthieu Libeert	Matthieu Libeert posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	good job! I'll be testing something similar in the following weeks but with latex bladders! maybe a stupid question but how did you removed your bladder from the inside? Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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Closed CF Shell Manufacture

LaxFriedrichs - 12 Years Ago

Some pics or a drawing of the proposed part would make answering easier. ;) The process you...

wozza - 12 Years Ago

Thanks Wozza - your rear wing is highly impressive! :) It's difficult to describe the part and I...

LaxFriedrichs - 12 Years Ago

This thread might be right up your street: http://www.compositescentral.net/showthread.php?t=7007

carboncactus - 12 Years Ago

An excellent thread, thanks CC. I have joined that forum also!

LaxFriedrichs - 12 Years Ago

Hey there LaxFriedrichs, I am also heavily interested in bladder inflation molding. I've gotten...

Drew Diller - 12 Years Ago

Buy that man a drink! :exclamation: Drew, your reply is most appreciated. A tutorial would be...

LaxFriedrichs - 12 Years Ago

I've used normal vac bags many times as inflatable bladders, sealed with normal tacky type I've had...

Ledon Racing - 12 Years Ago

I'm getting some good results with Polytek Platsil 71-11. I'm almost done redesigning my mold which...

Drew Diller - 12 Years Ago

You can try using expanding silicone for the same effect. The heat expansion of silicone can be used...

Warren (Staff) - 12 Years Ago

[quote][b]Warren (Staff) (02/10/2013)[/b][hr]You can try using expanding silicone for the same...

matthieutje65 - 12 Years Ago

I've just experimented with standard addition cure casting silicone. Seems to work ok. There may be...

Warren (Staff) - 12 Years Ago

Got some results recently... after spending a LONG hiatus insulating and finishing a section of my...

Drew Diller - 11 Years Ago

good job! I'll be testing something similar in the following weeks but with latex bladders! maybe a...

matthieutje65 - 11 Years Ago

Matthieu - the bladder I used was silicone rubber and therefore largely epoxy-phobic. Thing almost...

Drew Diller - 11 Years Ago

thanks for the info!, I'll be using Aluminum moulds or prepreg toolingblocks :) trying to do it the...

matthieutje65 - 11 Years Ago

Drew I have been reading your posting on this method. I see that you are using Polytek Platsil 71-11. How is this working for you? I have a need to develop a similar process but not as complex a part...

RURC - 7 Years Ago

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