Resin-transfer-moulding method
View Patent ↗This application describes a tool, an arrangement, and a method of manufacturing a component. The manufacturing of the component is achieved by a resin transfer from a storage chamber via a transfer line into a working chamber. Before the resin transfer, taking place, for example by a compressed air charging of the storage chamber, the storage chamber is filled with an amount of resin adjusted to the size of the component. Furthermore, a semi-finished product, consisting of cut-to-size reinforcement fibers, is inserted into the working chamber that is adjusted to the form of the component to be produced. Storage chamber, transfer line, and working chamber are configured in a one-piece mould casing of the tool. The application further describes a component manufactured by the above-mentioned tool or by the above-mentioned method respectively.
1. A resin transfer moulding method for manufacturing a fiber-reinforced composite component inside a moulding tool comprising:
inserting a semi-finished product into a working chamber located in a base element of the moulding tool, the base element being a one-piece form;
feeding a resin material in the form of granules from a feeding device positioned above the base element of the moulding tool into a storage chamber located in the base element of the moulding tool separated from the working chamber by a transfer line comprising a bridge over a flow-through channel;
closing a cap of the moulding tool, the cap extending over the working chamber, the bridge, and the storage chamber thus sealing the working chamber and the storage chamber against the environment of the moulding tool after the inserting of the semi-finished product and the feeding of the resin material into the moulding tool;
heating the resin material located in the storage chamber; and
transferring the resin material via a transfer line into the semi-finished product by at least one of charging of the storage chamber with compressed air or evacuating of the working chamber.
2. The method according to claim 1 , wherein the step of heating the resin material located in the storage chamber comprises a heating of the complete moulding tool.
3. The method according to claim 1 , further comprising:
filtering the resin material in the transfer line at the transfer from the storage chamber into the working chamber.