China Ring Forging Factory

Ring forging can process metal materials into ring parts with inner holes and outer circles. It is used in aerospace, energy, chemical, petroleum, metallurgy and other industries, especially in the production of high-strength, large-size ring parts (such as aircraft engine parts, pressure vessels, pipeline flanges, etc.).

Select metal alloys with good mechanical properties as raw materials. For some special materials, pretreatment such as deoxidation and impurity removal is required.

The billet is heated by equipment such as induction heating furnace to improve the plasticity of the metal and facilitate the subsequent forging process.

Free forging or die forging is performed on the heated billet to gradually transition the billet shape from the initial shape (ingot) to a ring.

Ring formation: To form the final ring parts, professional ring forging dies are required. There are usually two main methods:

Closed die ring forging: The blank is gradually formed from the outer ring or inner hole through the forging die. This method can better control the dimensional accuracy of the ring parts.

Open die ring forging: The blank is made into a ring by applying uniform compression or shearing force. This method is mainly suitable for simpler ring parts.

Cooling is performed by natural air cooling or controlled cooling speed. For special alloys, the cooling speed needs to be controlled to avoid cracks or deformation caused by too fast or too slow cooling.

Through subsequent heat treatments such as normalizing, annealing, quenching or aging, the mechanical properties of forgings are improved, internal stress is eliminated, and hardness, toughness and other properties are improved.

Forged rings have burrs, which need to be removed by mechanical cutting, grinding, sandblasting and other methods.

Through surface treatments such as electroplating, polishing, shot peening, and spraying, the surface quality of forgings is improved, and the corrosion resistance, wear resistance, and oxidation resistance are enhanced.