With the development of automobile industry, the increase of automobile output and occupation has led to the development of economy and brought convenience to people. Wheel hub is an indispensable part of automobile, and its performance is directly related to the stability and safety of vehicle operation. However, the impact resistance of some automobile wheel hubs is not strong.

　　This paper presents a manufacturing method of automobile wheel hub, which overcomes the shortcomings of the existing technology. The structure design is simple, the strength is high, the toughness is good, the wheel hub quality is good, the processing precision is high, the deformation is not strong, and the impact resistance is strong, which is conducive to the product promotion.

　　The mass fraction of its main parts and components are: aluminum: 5% - 85%, titanium antimony: 0.15%, silicon: 6.5% - 17.5%, magnesium: 0.2% - 0.4%. According to the mass of each component, a total of 15kg of raw materials are taken, and the above raw materials are heated to complete dissolution and evenly mixed. The aluminum alloy solution is poured into the mold by gravity casting method, and the blank is made by cooling to normal temperature, and then processed and grinded by lathe.

　　The beneficial effects of the manufacturing method of automobile wheel hub are as follows: the structure design is simple, the strength is high, the toughness is good, the wheel hub quality is good, the machining precision is high, it is not easy to deform, and the impact resistance is strong, which is conducive to the promotion of products.