Malleability
Forgeability refers to the performance of forging metal materials to change shape without cracking during press processing. Including forging, rolling, stretching, extrusion and other processing in hot or cold state. Forgeability is actually a manifestation of the plasticity of the forging metal material, which is mainly related to the chemical composition of the forging metal material.

 

Weldability
Weldability refers to the performance of forging metal to obtain the expected quality of welded joints under specific structure and process conditions through conventional welding methods. Generally speaking, the thermal conductivity is too high or too low, the thermal expansion is large, the plasticity is low or it is easy to oxidize during welding Inhaled metal has poor weldability. Low carbon steel forgings have good weldability, medium carbon steel forgings have medium weldability, and high carbon steel, high alloy steel, cast iron and aluminum alloy have poor weldability.

Forging processing forgings

Machinability
Machinability refers to the degree of difficulty for forging metal materials to be cut to meet requirements. Machinability is often measured by the surface roughness of the workpiece after machining, the allowable cutting speed and the degree of tool wear. It is related to many factors such as the chemical composition, mechanical properties, thermal conductivity and work hardening degree of metal materials. Forgings usually use hardness and toughness as rough indicators of machinability. Generally speaking, the higher the hardness of the metal material, the more difficult it is to cut. Although the hardness is not high, it has a high degree of toughness and cutting is more difficult. Non-ferrous metals have better machinability than ferrous metals, cast iron has better machinability than steel, and medium-carbon steel has better machinability than low-carbon steel.

 

Heat treatment process
Heat treatment refers to a process operation in which forgings or alloys are in the solid range through certain heating, heat preservation and cooling methods to change the internal structure of the metal or alloy to obtain the required performance. Heat treatment process refers to the metal after heat treatment, its The ability to change structure and properties, including hardenability, hardenability, temper brittleness, oxidation and decarburization tendency, etc.More about:p20 steel

 

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