Manufacturing process of aluminum alloy rim of large vehicle

Abstract

The invention discloses a manufacturing process of an aluminum alloy rim of a large vehicle, which relates to the manufacturing process of the rim. The manufacturing process of the aluminum alloy rim of the large vehicle comprises the steps of: A) blanking; B) prefabricating blank by swinging and grinding on a swing grinding machine; C) punching on a press; D) pre-forging by backward extrusion on the press through a backward extrusion mold; E) final forging on the press again; F) flaring and cutting edges; G) spinning on a spinning machine through a spinning wheel; H) performing thermal treatment; I) machining; and J) performing surface treatment. With adoption of a technique that combines swinging and grinding, backward extrusion and spinning, the manufacturing process not only improves the product quality, but also reduces the investment on the swing grinding device. The process has the advantages of being long in service life of mold, low in product cost, low in energy consumption during production process, and good in labor environment, and is suitable for mechanical automation and popularization.

Description

technical field [0001] The invention relates to a manufacturing process of a wheel rim, in particular to a manufacturing process of an aluminum alloy wheel rim of a large vehicle. Background technique [0002] Traditional tubeless plate wheel rims are generally seam welded steel rims, which are formed by rolling, but the rolling forming method cannot meet the strength requirements of the rim, and the raw material shape of the rim is generally It is first rolled by the steel mill, and then processed by the wheel manufacturer through rolling, welding, expanding and other processes. This process has low efficiency and low precision, and cannot adapt to mass production, especially the production of large-scale vehicle rims. Require. [0003] With the demand for light weight and high performance of the whole vehicle and the maturity of the forging process, the production process of the seam welded steel rim is facing the challenge of a new process. In recent years, some foreign ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a manufacturing process for large-scale vehicle aluminum alloy rims, while improving product quality, it can solve the disadvantages of the above-mentioned expensive equipment and high product cost in the prior art

Images