Method for manufacturing an aluminium alloy automobile hub

Abstract

Provided is a method for manufacturing an aluminium alloy automobile hub, the method comprising the following steps: putting a workpiece in the shape of a shallow hat on a first spinning base, wherein an opening of the workpiece faces upward, and a first upper pressure head extends into the workpiece from above and then fixes the workpiece; and pressing out a rim for spokes on an outer side of a lower portion of the workpiece by means of spinning rollers. In the method, series and improved aluminium alloy sheets are taken as raw materials and are integrally formed by multi-pass powerful spinning machining, such that same are deformed step by step in the whole process according to the properties of aluminium alloy, thereby forming a blank of the hub, and then the hub is formed by finishing.

Dependencies are inferred from the claim text.