RESEARCH CONCERNING RESIN TRANSFER MOLDING PROCESS UNDER ELECTROMAGNETIC FIELD

Abstract

Resin Transfer Molding (RTM) is a widely-used process in which a charge of resin is placed in a transfer pot and is injected into a closed mould. The method allows the resin to be finally prepared and then transferred fast and accurately into the mould, in which the required reinforcement has already been placed, in suitable form. Heat can be applied to the mould before the finished part is removed in order to shorten the cure-time and high quality of finished products. The surface of the mould is rapidly heated using electromagnetic induction and allows two different temperatures, one for the resin injection and another for the curing phase. Electromagnetic induction is referring at the phenomenon by which electric current is generated in a closed circuit by the fluctuation of current in another circuit placed next to it. Induction heating has made it easier to set the heating parameters without the need of an additional external power source. This paper aims towards to a study of heating adaptation for the Resin Transfer Molding of composite industry defined "Resin Transfer Molding under Electromagnetic field" (RTM-EF).