Brief discussion on the characteristics of forging processing

Forging products of forging plant are processed through forging plastic deformation, forging is the use of external force to make forging raw materials produce plastic deformation, obtain the size, shape and performance of the blanks or parts of the processing method, through forging can remove the metal in the process of smelting defects such as loose casting, optimize the microstructure, at the same time because of the preservation of a complete metal forging streamline, It greatly increases the performance of forgings in use.

1, improve the internal organization of forgings, increase mechanical properties, the forging blank after forging, its organization and performance have been improved and increased, forging can remove the metal ingot inside the pores, shrinkage and dendrite defects, and due to the plastic deformation and recrystallization of metal, can make the coarse grain refinement, get dense metal structure, thereby increasing the mechanical properties of forgings, The impact resistance of the component can be increased if the force direction and fiber structure direction of the component are correctly selected during the component design.



2, the utilization rate of materials is high, metal plastic forming mainly depends on the relative position of the metal shape and tissue rearrangement, without the need to remove the metal.



3, high productivity, forging processing is generally the use of press and forging hammer for forming processing.



4, blank or forging precision is higher, the application of good technology and equipment, can achieve less cutting or no cutting processing.



5. The metal materials used in forging should have good plasticity, so that under the action of external force, plastic deformation can be produced without rupture. Among the commonly used metal materials, cast iron is a brittle material with poor plasticity and can not be used for forging. Copper, aluminum and its alloys in steel and non-iron metals can be processed under cold or hot pressure.



6, not suitable for forming the shape of more complex forgings, forging processing is formed in solid state, compared with casting, the flow of metal is limited, generally need to take heating and other technological measures to achieve, the manufacture of complex shape, with complex cavity parts or blanks more difficult.