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What's the mold?

  • Author:liuweiqiong
  • Source:liuweiqiong
  • Release on :2017-07-17
Mold, in industrial production, for injection molding, blow molding, extrusion, die casting or forging, forming, smelting, stamping and other methods to obtain the required products of various molds and tools. In a nutshell, a mold is a tool for forming objects. This tool is made up of various parts, and different molds are made of different parts. It mainly deals with the shape of the material by changing the physical state of the formed material. Entitled "the mother of industry".


A tool for making a blank of a specified shape or size under external force. Widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and plastic forming or injection molding of engineering plastics, rubber and ceramics. The mold has a specific contour or inner cavity shape, and the shape of the blank can be separated (cut) according to the outline shape by applying a contour shape with a cutting edge.


The shape of the inner cavity can be used to obtain corresponding three-dimensional shapes of the blanks. Mold generally includes moving die and fixed die (or punch and die) two parts, the two can be divided into fit. Take out the parts when they are separated, and then make the blank into the mold cavity when it is closed. The mold is a precision tool, complex shape, bearing blank expansion force, have higher requirements of structural strength, stiffness, surface hardness, surface roughness and machining precision, the development level of mold production is an important sign of the level of manufacturing.