Forging can be divided into hot forging, warm forging and cold forging three types-Mingtai Hardware

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Forging can be divided into hot forging, warm forging and cold forging three types

Hot forging: Forging at a higher temperature (usually above the recrystallization temperature of the metal).

Mar 04,2025

Hot forging: Forging at a higher temperature (usually above the recrystallization temperature of the metal). Because metal has better plasticity and lower deformation resistance in the hot state, hot forging is suitable for producing parts with complex shapes and larger sizes. However, it should be noted that the parts after hot forging may produce oxide scale and residual stress, which requires subsequent treatment.
Warm forging: Forging is performed at a temperature lower than hot forging but higher than room temperature. Warm forging combines the advantages of hot forging and cold forging, which can not only improve the plasticity of metal, but also reduce the generation of oxidation and residual stress. However, warm forging requires high temperature control to avoid overheating or overcooling of the metal.
Cold forging: Forging was performed at room temperature. Because the metal has higher strength and hardness in the cold state, the parts obtained by cold forging have higher dimensional accuracy and better surface quality. However, cold forging requires high pressure on the equipment and is suitable for parts with simple shape and small size.

Process principle of machining

None!