Process characteristics of forged wheels

(1) The cylindrical design is adopted. The larger the diameter of the wheel hub is to use thicker aluminum to forge, which is completely different from the manufacturing method of using "raw materials" for cast aluminum ring hubs.

(2) Cut aluminum according to the required J number of aluminum hub width.

(3) First heat the aluminum ingot to 400°C or so, and then it is ready for forging.

(4) Hot forging and pressing. The higher the tonnage of the forging press requires the lower the working temperature of the aluminum ingot, the smaller the grains of the forged product, and the higher the toughness.

(5) The temperature of the rough embryo formed by high temperature and high pressure is very high, and the surface is covered with black carbide, which must be handled by a fork motor. The rough embryo after pickling surface treatment already has the embryonic shape of a wheel hub.

(6) After long-term reprocessing and heat treatment of the T4 and T6 heat treatment machines, the grains of the rough embryo will be firmer and the toughness of the product will be improved.

(7) Forged aluminum hubs must rely on mechanical processing to process the rough embryo to the hub forming. Therefore, the work includes the steps of bead forming, screw hole drilling, disk turning and detail processing.

(8) Before painting, the wheel hub surface must be checked again for defects.