Mold according to the machining of metals processing classification, commonly used are:
Stamping die, stamping die, bending die, drawing die, flanging die, necking die, the ups and downs of mold, bulging mold, plastic mold;
Forging die, including forging the forging die, upset forging die; and the extrusion die and die-casting mold.
For processing non-metallic and powder metallurgy mold according to the processing object naming and classification of plastic mold, rubber mold and powder metallurgy mold.
2 forging die for the thermal state metal forging mold. Forging, the billet is often After several rounds of deformation can be made from forgings, which requires several cavity carved in a single module. The metal in turn sent to each cavity, and plastic flow in the cavity, and finally filled the cavity made from forgings. In the forging, the billet is difficult to finish forging cavity volume equal to the blank selection is slightly larger in order to avoid waste. To this end, the final forging die around the cavity of the lower die interface has a flash tank to the storage of excess metal, forming the cut edge will fly. Should minimize sharp corners, deep grooves in the cavity, in order to facilitate metal plastic flow and filling, reduce mold wear and cracking, improve die life.
4 die-casting mold is installed in the die casting machine, the liquid metal under high pressure into the cavity, holding pressure to the metal solidification and forming mold. It is mainly used for aluminum, zinc, copper, steel can also be used. Die-casting mold structure is similar to plastic injection mold. It consists of dynamic model with the fixed mold cavity, the formation of the casting core hole cavity. The metal in the cavity cooling, the solidified out of the core separated from the mold, casting introduced by the ejector. Die castings general thin-walled hollow, there are many sets of ribs, the shape of the complex structure, and size requirements are more accurate than the smooth surface, metal forming in the high temperature of melting. Die-casting mold using a high-temperature materials.