Manufacturing process for matching of hub and cap

The invention relates to a manufacturing process for matching a hub with a cap. Firstly, an initial cap groove is formed in the middle of the hub through casting forming, and the initial cap groove comprises an initial molded surface and a cap groove follow-up molded surface. In the step of forming the cap groove through one-time machining, milling is not needed, the manufacturing complexity is effectively reduced, then the final structure of the cap groove is formed through one-time machining forming, the final structure comprises a falling groove, a clamping corner guide-in opening, a cap spigot and an inner spigot, the cap cover can enter the inner spigot through the clamping corner guide-in opening due to the reasonable design of the parts, and it is ensured that the cap cover is firmly fixed in the cap groove. The method is particularly suitable for a hub cap in a non-circular design, the common problems of manufacturing difficulty and high cost under the random design condition are solved, new milling e