Composite material forming method

The forming methods of composite materials vary according to the matrix materials. There are many molding methods for resin-based composites, including hand lay-up molding, spray molding, filament winding molding, molding, pultrusion molding, RTM molding, autoclave molding, diaphragm molding, migration molding, reaction injection molding, soft film expansion molding, stamping molding, etc. The forming methods of metal matrix composites are divided into solid phase forming method and liquid phase forming method. The former is formed by applying pressure at a temperature lower than the melting point of the substrate, including diffusion welding, powder metallurgy, hot rolling, hot drawing, hot isostatic pressing and explosive welding. The latter is to melt the matrix and fill it into reinforcement materials, including traditional casting, vacuum suction casting, vacuum reverse pressure casting, squeeze casting and spray casting, etc. The forming methods of ceramic matrix composites mainly include solid phase sintering, chemical vapor infiltration molding, chemical vapor deposition molding, etc.