Manufacturing method for aluminium alloy automobile hub with high performance and big size

Abstract

A manufacturing method for an aluminium alloy automobile hub with high performance and big size relates to the mechanical manufacturing method. The semi-solid state thixocasting is used for extruding an alloy automobile spoke with the designed shape and diameter, high mechanical property and fatigue performance on a large scale extruder; aluminium alloy plank stuff is rolled and spun to be a wheelfelloe with the definite shape and diameter; after precision work and amendment, the spoke and the wheel felloe are welded together by inert-gas arc welding or laser-inert-gas arc welding to form a whole body and superficially processed. The aluminium alloy automobile hub has the advantages of light weight, high mechanical property and fatigue performance and the like, can replace a steeliness welding cartwheel used by a commercial vehicle for the moment and a low-pressure casting aluminium alloy cartwheel used by a passenger car, simultaneously increases the fuel economical efficiency and structural strength, is suitable for the cartwheel manufacture of all automobiles and motorcycles and especially suitable for large scale light car wheels and custom car wheels.

Description

technical field [0001] The invention relates to a mechanical manufacturing method, in particular to a convenient and economical manufacturing method for a 20-inch or larger commercial vehicle aluminum alloy wheel hub with high structural strength and high fatigue performance and can be used as a tubeless wheel. Background technique [0002] With the development of the automobile industry, the production and ownership of automobiles have increased. While driving economic development and bringing convenience to people's travel, three major issues have arisen: emissions, fuel energy consumption, and safety, especially automobile exhaust emissions. The increase of greenhouse gases has brought great difficulties to my country's commitment to the Kyoto Protocol. Governments all over the world attach great importance to energy saving, emission reduction and safety issues of automobiles, and have formulated relevant regulations to reduce automobile fuel consumption and emissions, and...

AI Technical Summary

Problems solved by technology

Making automobile wheels with semi-solid aluminum alloy is a more effective way to improve performance, but the overall semi-solid aluminum alloy die-forged automobile wheels or semi-solid cast aluminum alloy wheels require large-sized semi-solid slurry casting billets, and the forming control is complicated and requires Large-scale production equipment, so the cost is still relatively high

[0005] patent application number 02156716.6, published on June 23, 2004, the publication number is CN1506177a, which discloses "a seamless aluminum wheel forming method", and the patent application No. 200610050140.5, published on September 6, 2006, the publication number is CN1827289a, which discloses "a kind of forging and spinning process for forging aluminum alloy wheels", but the cost of both is relatively high, and its market competitiveness is relatively small

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