METHOD FOR PRODUCING A FIBRE COMPOSITE BODY AND FIBRE COMPOSITE BODY
The invention relates to a method for producing a fibre composite body ( 2 ), in particular at least a part of a wheel, comprising the following steps: providing a mould ( 4 ) having at least one female mould part ( 6 ) and one male mould part, introducing a fibrous raw material ( 8 ) and a binder ( 10 ) into the female mould part ( 6 ), activating the binder ( 10 ) by an energy input (p, T) into the mould ( 4 ) to form a mould element ( 12 ) which is open to diffusion, joining together the mould element ( 12 ) which is open to diffusion and a preform structure ( 14 ), supplying a resin, so that the resin infiltrates at least partially into the mould element ( 12 ) which is open to diffusion and into the preform structure ( 14 ), and curing the resin, so that in this way the fibre composite body ( 2 ) is formed without a boundary layer.
1 . A method for producing a fibre composite body ( 2 ), in particular at least a part of a wheel, comprising the following steps:
providing a first mould ( 4 ) having at least one female mould part ( 6 ) and one male mould part;
introducing a fibrous raw material ( 8 ) and a binder ( 10 ) into the female mould part ( 6 );
activating the binder ( 10 ) by an energy input (p, T) into the mould ( 4 ) to form a mould element ( 12 ) which is open to diffusion;
joining together the mould element ( 12 ) and a preform structure ( 14 );
supplying a resin, so that the resin infiltrates at least partially into the mould element ( 12 ) which is open to diffusion and into the preform structure ( 14 ); and
curing the resin, so that, as a result, the fibre composite body ( 2 ) is formed without a boundary layer.
2 . The method according to claim 1 , wherein
the binder is added to the fibrous raw material ( 8 ).
3 . The method according to claim 2 , wherein
the binder is thermoplastic, thermoseting or a mixture of both.
4 . The method according to claim 1 , wherein
a polyimide material is added to the fibrous raw material ( 8 ).
5 . The method according to claim 1 , wherein
one or more textile layers are integrated into the mould element ( 12 ) which is open to diffusion.
6 . The method according to claim 1 , wherein
one or more textile layers are integrated when joining together the mould element ( 12 ) which is open to diffusion and the preform structure ( 14 ).
7 . The method according to claim 1 , wherein
one or more functional elements are arranged, in particular integrated, in(to) the mould element ( 12 ) which is open to diffusion and/or in(to) the preform structure ( 14 ).
8 . The method according to claim 1 , wherein
the mould element ( 12 ) has one or more formations for the integration of coupling load elements.
9 . The method according to claim 1 , wherein
the energy input (p, T) takes place in multiple stages.
10 . The method according to claim 1 , wherein
the energy input (p, T) comprises vacuum pressing or over-pressure pressing or a closing force of the at least one mould ( 4 ).
11 . The method according to claim 1 , wherein
the at least one female mould part ( 6 ) is made of a duroplastic material or of a thermoplastic material or of a mixture of duroplastic and thermoplastic material.
12 . The method according to claim 1 , wherein
the mould element ( 12 ) which is open to diffusion is connected to a structural segment ( 24 ), in particular in a form-fitting manner.
13 . A fibre composite body ( 2 ), in particular a wheel, made of a fibre composite material having
a mould element ( 12 ) which is open to diffusion and
a preform structure ( 14 ), wherein the mould element ( 12 ) which is open to diffusion and the preform structure ( 14 ) are connected to one another at least partially without a boundary layer.
14 . A fibre composite body ( 2 ) according to claim 13 , wherein
the mould element ( 12 ) which is open to diffusion and the preform structure ( 14 ) are connected to one another in a form-fitting manner.
15 . A fibre composite body ( 2 ) according to claim 13 , wherein
the mould element ( 12 ) which is open to diffusion is formed as an insert part.
16 . The fibre composite body ( 2 ) according to claim 13 , wherein
the mould element ( 12 ) which is open to diffusion has at least one connection to a structural segment ( 24 ), which connection is formed in particular in a form-fitting manner.
17 . The fibre composite body ( 2 ) according to claim 13 , wherein
the mould element ( 12 ) which is open to diffusion is completely integrated into the preform structure ( 14 ), in particular is completely connected to the preform structure ( 14 ) without a boundary layer.
18 . The fibre composite body ( 2 ) according to claim 13 , which has a plurality of mould elements ( 12 ) which are open to diffusion.
19 . The method according to claim 3 , wherein:
a polyimide material is added to the fibrous raw material ( 8 ); and
one or more textile layers are integrated into the mould element ( 12 ) which is open to diffusion.
20 . The method according to claim 19 , wherein:
the energy input (p, T) takes place in multiple stages; and
the energy input (p, T) comprises vacuum pressing or over-pressure pressing or a closing force of the at least one mould ( 4 ).