China Closed Die Drop Forging Factory

Closed Die Forging (Die Drop Forging) is a process that places heated metal billets into a die with a fixed shape and then applies high pressure or forging to shape them. It can accurately produce metal parts with complex shapes and high precision. Die Forging parts are widely used in the automotive, aerospace, energy and other industries to produce important parts such as gears, shafts, flanges, gears, etc.

Select the appropriate metal blank (such as carbon steel, alloy steel, stainless steel, aluminum alloy, titanium alloy, etc.) according to the use requirements of the parts, and cut the blank to the appropriate size according to the design of the parts.

Heat the metal blank to the appropriate forging temperature through a high-temperature furnace.

The heated metal blank is sent into the closed die equipment (hydraulic forging machine or mechanical forging hammer),

The forging press applies strong pressure or impact force to the die to press the metal blank into the desired shape.

When pressure is applied, the metal will flow into every corner of the die and be plastically deformed to the shape of the die. The whole process may require multiple pressures or forgings until the metal completely fills the die and has the desired shape and size.

After forging, the forging is removed from the die and begins to cool.

During the cooling process, the grain structure of the metal gradually solidifies, and finally forms the desired mechanical properties.

Depending on the material and part requirements, forgings may need to be heat treated (Annealing, Quenching, Tempering...) to improve their mechanical properties and eliminate internal stress.

After the forgings are cooled, they may need to be machined, deburred, polished and other processes to further improve the accuracy and surface quality of the forgings.

Comprehensive measurement is carried out through surface quality inspection, dimension inspection, mechanical property test and other quality inspection methods to ensure that the die forgings meet the requirements of the design drawings.