Method for manufacturing aluminum alloy hub

A technology of an aluminum alloy wheel hub and a manufacturing method, which is applied in the directions of wheel hub, transportation and packaging, vehicle parts, etc., can solve the problems of low material utilization rate, low production efficiency, complex process, etc. The effect of simplifying the process

Inactive Publication Date: 2014-09-03
ZHEJIANG GKO IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a manufacturing method of an aluminum alloy wheel, which can solve the problems of complex process, low material utilization rate, low production efficiency and high energy consumption in the prior art, so as to reduce energy consumption and improve production efficiency the goal of

Method used

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  • Method for manufacturing aluminum alloy hub
  • Method for manufacturing aluminum alloy hub
  • Method for manufacturing aluminum alloy hub

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Take a 22.5-inch automotive aluminum alloy wheel as an example:

[0078] Calculate the volume of the required blank according to the size of the hub, punch the 6061 aluminum alloy hot-rolled thick plate with a thickness of 30mm into a disc-shaped blank with a size of Φ800mm; draw and spin the circular sheet-shaped blank on a spinning machine Disc-shaped blank; then heat the disc-shaped blank to 380°C, and hot-extrude the central part of the disc-shaped blank on the forging press, so that the material in the central part flows to the spokes, rims and rims; after that, spinning The hollow rotating body hub blank is powerfully spun on the machine; then the hollow rotating body hub blank is heated to 520°C in a solid solution furnace, and quenched after 2.5 hours of heat preservation. After quenching, the aluminum wheel hub is put into an aging furnace and heated to 166 ℃, heat preservation for 6 hours; after heat treatment, the wheel hub is machined and followed by surface...

Embodiment 2

[0080] Take a 22.5-inch automotive aluminum alloy wheel as an example:

[0081] The 5A06 aluminum alloy hot-rolled thick plate with a thickness of 30mm is punched into a circular sheet-shaped blank with a size of Φ800mm; the circular sheet-shaped blank is drawn and spun into a disc-shaped blank on a spinning machine; At 380°C, the central part of the disc-shaped blank is hot-extruded on the forging press, so that the material in the central part flows to the spokes, rims and rims; after that, it is powerfully spun on the spinning machine to form a hollow rotating hub blank ; Then, the hollow rotating body hub blank is kept in a continuous annealing furnace at 200°C for 2 hours for stabilization treatment; finally, the hub is machined and followed by surface treatment to obtain the finished automobile aluminum alloy hub.

[0082] The aluminum alloy wheel produced by the present invention is mainly used in the field of automobiles. Of course, the wheel of the present invention i...

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Abstract

The invention discloses a method for manufacturing an aluminum alloy hub. The method comprises the following steps: first, manufacturing an aluminum alloy hot rolled plate into a round-sheet-shaped blank; second, stretching the round-sheet-shaped blank into a disc-shaped blank through a spinning machine or punch press; third, extruding the spoke central part of the disc-shaped blank; fourth, punching and trimming the extruded blank; fifth, arranging the punched and trimmed blank into the spinning machine and spinning the blank into a hollow rotating body hub blank with high strength; sixth, conducting stabilizing treatment or solid solution aging hot treatment on the hollow rotating body hub blank formed in a spinning mode; seventh, conducting machining and surface treatment. According to the method for manufacturing the aluminum alloy hub, a material and manufacturing process used by the aluminum alloy hub are improved, Al-Mg-Si aluminum alloy bars in a cast state are adopted as a raw material so that the aim of simplifying the process can be achieved, and the process of upsetting, forging and prefabricating the disc-shaped blank and the like are not needed before spinning forming.

Description

technical field [0001] The invention relates to a method for manufacturing a wheel hub, in particular to a method for manufacturing an aluminum alloy wheel hub. Background technique [0002] At present, the automobile industry is developing in the direction of light weight, high speed, safety, energy saving, comfort and low environmental pollution, so the amount of aluminum alloy parts used in automobiles is increasing day by day. As one of the important parts in the driving system of the car, the wheel hub is also a kind of security device with high requirements. It not only bears the weight of the car, but also reflects the appearance of the car. In the past ten years, the average annual growth rate of the global aluminum alloy automobile wheel production has reached 7.6%. It can be seen that with the increasing demand for lightweight automobiles, aluminum alloy wheels are gradually replacing traditional steel wheels in modern automobile manufacturing and are widely used....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B60B27/00
Inventor 李书通王新春朱其柱丁荣辉濮近发茅海波林枭雄
Owner ZHEJIANG GKO IND CO LTD
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