Compression molding forming is to put a certain amount of molding compound into a pair of metal molds (ie, metal-to-die), and under a certain temperature and pressure, the molding compound is heated and plasticized in the mold cavity, and it flows under pressure and fills the cavity. forming. The compression molding process requires heat and pressure during the molding process, so that the plasticizing of the molding compound produces a flow that fills the cavity and causes the resin to undergo a curing reaction. When the composite molding compound flows and fills the cavity, not only the resin flows, but also the reinforcing material, so that the resin and fibers fill all parts of the cavity at the same time. Therefore, the molding pressure required by the compression molding process is higher than that of other process methods, and it belongs to high pressure molding. The mold that requires compression molding has high strength, high precision, and high temperature resistance. The molding method has high production efficiency, accurate product size and smooth surface, suitable for mass production. SMC, BMC and Phenolic are suitable for Compression molding forming.