Abstract: Composite LCM process after years of development, formed RTM, RIM, continuous fiber reinforced thermoplastic prepreg vacuum bag molding method and so on a variety of molding processes. Due to the different characteristics of these processes, the development of the technical content is different, RTM molding process is developing towards the direction of the high-speed , RIM toward larger and more complex structural components molding as a whole, rapid filling flow and automatic laying is the main direction of technology, continuous fiber reinforced thermoplastic prepreg vacuum bagging process need to develop more varieties materials to expand the application fields.

Key words: composite, process, LCM