1. Milling and forging uses impact force or pressure to deform the metal between the upper and lower buttresses (anvil blocks) to obtain the required blocky billets. After heat treatment, the cake is formed by milling through a processing center. However, due to the large thickness of the cake and poor hardenability during heat treatment, the material properties of the final product may not meet the quality level of the forging process. In addition, the forging flow line may be cut during machining and forming, As a result, the final formed wheel product cannot truly achieve lightweight.
2. Die forging and die forging can also be divided into open die forging and closed die forging. The metal blank is compressed and deformed in a forging die chamber with a certain shape to obtain a forging. Because the forging produced under this process belongs to one-time forming within the mold shape, the product has uniform wall thickness, and the performance after heat treatment reaches, so the quality and weight of the wheel formed by die forging is the lightest. Of course, the die forging process requires a series of dedicated molding molds, so its products are expensive. From the above understanding, we know that forging wheel hubs is the current method of manufacturing aluminum wheel rims. Its most prominent advantages are high strength, higher safety, strong plasticity, light weight, good heat dissipation, and fuel saving; The disadvantage is that the price is slightly higher and the production cycle is longer. What are the advantages of forging wheel hubs compared to original factory casting wheel hubs?