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

A manufacturing method and technology of automobile wheels, applied in the direction of manufacturing tools and other manufacturing equipment/tools, etc., can solve problems such as high cost, low market competitiveness, and complex forming control, and achieve low cost, strong market competitiveness, and improved fatigue Effects on performance and structural strength

Inactive Publication Date: 2009-11-18
马鸣图 +6
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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 021567

Method used

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

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Embodiment 1

[0014] The present invention will be further described below in conjunction with embodiment. The alloy composition mass percentage (%) of the 6061 aluminum alloy sheet material adopted in the embodiment is:

[0015]

[0016] After melting the 6061 aluminum alloy in a power frequency electric furnace, add SiB with a mass fraction of 0.5% relative to the aluminum alloy 2 As a refiner to refine the grains, and after refining, cool in a static furnace to the liquidus temperature of the alloy within the range of -670°C, keep it warm for 30 minutes, and cast it on a semi-continuous casting machine after primary cooling and secondary cooling. Diameter aluminum alloy cylindrical billet, the casting speed is 125mm / min, the cooling water flow rate is 0.05-0.75m 3 / min. will subsequently The diameter of the aluminum alloy cylindrical billet is heated at a frequency of 618°C for 20 minutes, and its solid phase ratio reaches 65-70%, and then the designed shape is extruded on a 2,50...

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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 wheel felloe 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...

Claims

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Application Information

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IPC IPC(8): B23P23/04
Inventor 马鸣图路洪洲游江海路贵民杨传增毕祥玉李志刚
Owner 马鸣图
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