Female and male mould

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Female and male mould

Female and male mould

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kosak95	k kosak95 posted 4 Years Ago HOT Topic Details
k Group: Forum Members Posts: 14, Visits: 518	Hi, Is it a good idea to make female and male mould for resin infusion of carbon fibers? I'm making helmet and was interested if it is a good idea? Thanks
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Lester Populaire	L Lester Populaire posted 4 Years Ago HOT Post Details
L Group: Forum Members Posts: 311, Visits: 13K	+x kosak95 - 8/14/2020 11:12:38 AM Hi, Is it a good idea to make female and male mould for resin infusion of carbon fibers? I'm making helmet and was interested if it is a good idea? Thanks are you refering to a mould and countermould so you have a moulded surface on moth sides of your laminate? In this case this will not work well with resin infusion. One solution would be to create a semi rigid countermould from a cast silicone that can still conform somewhat to the shape. however i do not see the benefit of this process for a helmet.
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kosak95	k kosak95 posted 4 Years Ago HOT Post Details
k Group: Forum Members Posts: 14, Visits: 518	Yes I was thinking of mould and counter mould made of rigid material. I already did some helmets with mould and film on the other side and it was okay, not perfect because of pinholes and some bridging. What do you recommend? silicone or something else to get as good surface as it could be on both sides? And additional question, what would be best way to make serial production of helmets made of carbon, with which process? Edited 4 Years Ago by kosak95
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Lester Populaire	L Lester Populaire posted 4 Years Ago HOT Post Details
L Group: Forum Members Posts: 311, Visits: 13K	+x kosak95 - 8/14/2020 12:17:50 PM Yes I was thinking of mould and counter mould made of rigid material. I already did some helmets with mould and film on the other side and it was okay, not perfect because of pinholes and some bridging. What do you recommend? silicone or something else to get as good surface as it could be on both sides? And additional question, what would be best way to make serial production of helmets made of carbon, with which process? bridging and porosity are not going to be solved with a counter mould. this probably just comes down to skills and techniques of the laminator and will come with time... What process for serial production depends a lot of how many parts you intend to make, the shape, the resin system used, ... The perfect process can be Infusion, autoclaved prepreg, RTM, BIM, compression moulding, ... I'm not 100% sure but i would guess my downhill bike helmet is made by hand laminating in a negative mould and then compacted with a pneumatic bladder. This means high up front investment in the tooling, but short-ish cycle times.
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