Mold manufacturing
Moulds (muju), industrial production used for injection molding, blow molding, extrusion, die casting or forging press forming, smelting, stamping and other methods to obtain the desired products of various molds and tools. In short, the mold is a tool used to make molded items, this tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. Known as the "mother of industry" title.
A tool used by external forces to make the blank into a piece of work of a particular shape and size. Widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and engineering plastics, rubber, ceramics and other products of pressure molding or injection molding processing. The mold has a specific profile or cavity shape, and the application of the profile shape with a cutting edge can separate the blank according to the profile shape (blanking). The corresponding three-dimensional shape of the blank can be obtained by using the cavity shape. The mold generally includes two parts: dynamic die and fixed die (or punch die and concave die), which can be separated and combined. The parts are taken out when separated, and the blanks are injected into the mold cavity when closed. Die is a precision tool, the shape is complex, bear the billet expansion force, the structural strength, stiffness, surface hardness, surface roughness and processing accuracy have high requirements, the development level of die production is one of the important symbols of the level of mechanical manufacturing.
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