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Free forging is the use of impact force or pressure to make the metal in all directions between the anvil surface free deformation, without any restrictions to obtain the required shape and size and a certain mechanical properties of a forging processing method.
Free forging is divided into manual free forging and machine free forging.
Manual free forging has low production efficiency and high labor intensity, and is only used for repair or production of simple, small and small batches of forgings.
In modern industrial production, machine free forging has become the main method of forging production, in heavy machinery manufacturing, it has a particularly important role.
Equipment
Free forging equipment is divided into two categories: forging hammer and hydraulic press. The forging hammers used in production are air hammers and steam-air hammers. The hydraulic press deforms the blank by the static pressure generated by the liquid, which is the only way to produce large forgings.
Process
The basic processes of free forging include upsetting, drawing, punching, cutting, bending, twisting, shifting and forging.
Forging CNC Machining Casting Open Forging Closed Die Forging