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Magnesium alloy automobile hub casting spinning compound molding method

A technology for composite forming of automobile wheels, which is applied in the field of casting and spinning composite forming of magnesium alloy automobile wheels, can solve the problems of poor strength and toughness of the wheels, and achieve the effects of low production cost, high material utilization rate and high production efficiency

Active Publication Date: 2013-04-24
NONFERROUS METALLIC OF HEBEI NEW LIZHONG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-efficiency, low-cost casting and spinning composite forming method for magnesium alloy automobile hubs to meet the requirements in the field of magnesium alloy automobile hub manufacturing, which can not only solve the problems of poor strength and toughness of magnesium alloy automobile hubs, And can obviously reduce the production cost of magnesium alloy automobile wheel hub

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  • Magnesium alloy automobile hub casting spinning compound molding method
  • Magnesium alloy automobile hub casting spinning compound molding method
  • Magnesium alloy automobile hub casting spinning compound molding method

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Effect test

Embodiment 1

[0036] In this embodiment, the magnesium alloy used is Mg-Zn-Al-Mn series magnesium alloy, and its alloy composition and weight content are as follows: Zn: 6.2; Al: 1.2; Mn: 0.3; Mg balance.

[0037] The average mechanical properties of the as-cast alloy of the Mg-Zn-Al-Mn series magnesium alloy are as follows:

[0038] Tensile strength σ b 300MPa, yield strength σ 0.2 180MPa, elongation δ11%, the performance of spokes and rims can fully meet the application requirements of automobile wheels.

[0039] The magnesium alloy automobile wheel hub casting spinning composite forming method that the present invention adopts, concrete steps are as follows:

[0040] 1) Put a certain amount of magnesium alloy ingots for automobile wheels into the preheating furnace for preheating, the temperature of the preheating furnace is 370°C, and the preheating time is 1.5h, and then put the preheated magnesium alloy ingots into the crucible of the melting furnace , heating and melting, refining a...

Embodiment 2

[0048] In this embodiment, the magnesium alloy used is Mg-Zn-Al-Mn series magnesium alloy, and its alloy composition and weight content are as follows: Zn: 6.0; Al: 1.5; Mn: 0.2; Mg balance.

[0049] The average mechanical properties of the as-cast alloy of the Mg-Zn-Al-Mn series magnesium alloy are as follows:

[0050] Tensile strength σ b 290MPa, yield strength σ 0.2 190MPa, elongation δ8%, the performance of spokes and rims can fully meet the application requirements of automobile wheels.

[0051] The magnesium alloy automobile wheel hub casting spinning composite forming method that the present invention adopts, concrete steps are as follows:

[0052] 1) Put a certain amount of magnesium alloy ingots for automobile wheels into the preheating furnace for preheating. The temperature of the preheating furnace is 350°C and the preheating time is 2 hours. Then put the preheated magnesium alloy ingots into the crucible of the melting furnace. Heating and melting, refining and...

Embodiment 3

[0060] In this embodiment, the magnesium alloy used is Mg-Zn-Al-Mn series magnesium alloy, and its alloy composition and weight content are as follows: Zn: 6.5; Al: 1.0; Mn: 0.4; Mg balance.

[0061] The average mechanical properties of the as-cast alloy of the Mg-Zn-Al-Mn series magnesium alloy are as follows:

[0062] Tensile strength σ b 280MPa, yield strength σ 0.2 175MPa, elongation δ10%, the performance of spokes and rims can fully meet the application requirements of automobile wheels.

[0063] The magnesium alloy automobile wheel hub casting spinning composite forming method that the present invention adopts, concrete steps are as follows:

[0064] 1) Put a certain amount of magnesium alloy ingots for automobile wheels into the preheating furnace for preheating. The temperature of the preheating furnace is 400°C and the preheating time is 1h. Then put the preheated magnesium alloy ingots into the crucible of the melting furnace. Heating and melting, refining and deg...

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Abstract

The invention belongs to the field of magnesium alloy automobile hub manufacture and particularly relates to a magnesium alloy automobile hub casting spinning compound molding method. A magnesium alloy automobile hub spinning wheel blank is manufactured through gravity casting or low-pressure casting process, after a casting spinning blank undergoes surface machining and homogenization processing, an automobile hub blank is manufactured through hot spinning process, and the magnesium alloy automobile hub is manufactured through heat treatment, precise machining and surface coating. The magnesium alloy automobile hub casting spinning compound molding method is used for manufacturing the magnesium alloy automobile hub, the automobile hub with high mechanical performance and good surface quality is obtained, and requirements of the automobile field for automobile hub performance indexes can be fully met. By means of the magnesium alloy automobile hub casting spinning compound molding method, a problem that the strength and toughness of the magnesium alloy automobile hub are poor can be solved, and production cost of the magnesium alloy automobile hub can be obviously reduced.

Description

technical field [0001] The invention belongs to the field of magnesium alloy automobile wheel hub manufacturing, in particular to a magnesium alloy automobile wheel hub casting and spinning composite forming method. Background technique [0002] Magnesium has the lowest density among all structural metals and alloy materials. Compared with other metal structural materials, magnesium and magnesium alloys have higher specific strength and specific stiffness, good vibration reduction and damping performance, easy cutting, easy recycling, etc. A series of advantages, the application in the car can significantly reduce the weight of the car, save fuel, reduce harmful gas emissions, and improve the comfort of the car, so it is more and more favored by domestic and foreign car manufacturers. [0003] As one of the heaviest auto parts, the automobile wheel hub is also the most obvious component of automobile lightweight. At present, the magnesium alloy automobile hub mainly adopts c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21D22/14
Inventor 杨院生马春江罗天骄计国富葛素静史宝良
Owner NONFERROUS METALLIC OF HEBEI NEW LIZHONG GRP CO LTD
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