There are many ways to classify molds, which used to be classified according to the mold structure, such as single-process molds and compound dies. According to the object of use, such as automobile panel mold and motor mold; Classification according to the properties of processing materials, such as molds for metal products and molds for nonmetal products; According to the classification of mold manufacturing materials, such as cemented carbide molds; According to the process properties, such as drawing die, powder metallurgy die, forging die, etc. Some of these classification methods can't fully reflect the structure of various molds, the characteristics of forming process and their use functions. Therefore, a comprehensive classification method based on the technological properties and users of molds is adopted, and molds are divided into ten categories, as shown in Table 1, and can be divided into several subcategories or varieties according to mold structure, materials, use functions and mold making methods. No. Mould Type Mould Variety Forming Process Nature and Application Object 1 Stamping die (punching die) Punching die (blanking with little or no waste, trimming, smooth blanking, deep hole punching fine die, etc.), bending die, drawing die, single-process die (blanking, bending, drawing, forming, etc.), composite die and progressive die; Automobile panel stamping die, combined stamping die, motor silicon steel sheet stamping forming 2 plastic forming die compression mold, extrusion mold, injection mold (vertical, vertical and angular injection mold); Thermosetting plastic injection mold, extrusion molding mold (pipe, flat film head, etc.), foam molding mold, low-tool tool bubble injection molding mold, blow molding mold and other plastic products forming plus Huangyan process (thermosetting and thermoplastic molding compound) 3 die-casting mold for hot chamber die casting machine, die-casting mold for vertical cold chamber die casting machine, die-casting mold for official cold chamber die casting machine, die-casting mold for full-vertical die casting machine, and non-ferrous metals (zinc, aluminum, copper, aluminum, aluminum, aluminum, aluminum, aluminum, aluminum, aluminum, aluminum, Die casting die for ferrous metals Pressure casting process for nonferrous metals and ferrous metals 4. Forging die for forging and forging die for large press, forging die for screw press, forging die for flat forging machine, rolling forging die, etc. Metal parts such as cold heading dies, extrusion dies, wire drawing dies and liquid forging dies for various fasteners are formed, and metal models used in casting various metal parts are forged and extruded. Metal casting forming process 6 Powder metallurgy die forming die: manual die: solid unidirectional pressing and solid bidirectional pressing manual die; Mobile dies for solid floating dies: large-section solid floating dies, pole palm unidirectional dies, sleeve unidirectional dies and sleeve-type floating die shaping dies: manual dies: radial shaping dies, sleeve-type full shaping dies with outer steps, spherical parts shaping dies and other mobile dies: automatic shaping dies for solid parts without steps, semi-automatic shaping buns with sleeve pull rod, automatic shaping dies for sleeve through, automatic shaping dies for sleeve with outer steps and sleeve with outer spheres, and so on. The main die electro-machining equipment is used for copper-based and iron-based powder products; Mechanical parts, tool materials and easily-heated parts of products, etc. 7. Glass product mold blow-blow molding bottle and jar mold, press-blow molding bottle and jar mold, glassware mold and other glass product molding processes 8. Rubber molding mold, rubber extrusion mold and injection mold for rubber products. Rubber tire mold, rubber mold for O-shaped sealing ring, etc. Rubber pressing forming process 9 Ceramic mold for various ceramic utensils and other products Ceramic product forming process 1 Economic mold (simple mold) Low melting point alloy forming mold, sheet die, laminated die, silicone rubber mold, epoxy resin mold, ceramic precision mold, laminated cavity plastic mold, rapid electroforming forming mold, etc., which are suitable for many kinds of small batch industrial products and have high economic value.