Automobile wheel hub machining method

A processing method and technology of automobile wheels, which are applied in the field of automobile parts processing, can solve the problems of low production efficiency, long manufacturing time of aluminum alloy automobile wheels, and high manufacturing costs, and achieve the effect of improving tensile strength

Inactive Publication Date: 2013-10-09
江苏东方龙机车集团有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In the manufacturing process of the wheel hub in the prior art, the process steps that the casting wheel hub needs to go through from the aluminum water to the finished product roughly include the following: aluminum alloy solution low-pressure casting forming, forming a blank; heat treatment, solution quenching and agin

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  • Automobile wheel hub machining method
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Embodiment Construction

[0011] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0012] Such as figure 1 As shown, according to a preferred embodiment of the present invention, a method for processing an automobile wheel includes the following steps: melting process, low pressure casting, heat treatment, precision machining and surface coating. The "content" in this example is the mass percentage.

[0013] In the aforementioned smelting process, metal silicon is added when the temperature of the aluminum liquid rises to 760°C, and electromagnetically stirred for 25 to 30 minutes, wherein the content of metal silicon is between 6.5% and 7.5%, in order to improve the fluidity of the aluminum liquid, and the casting is heat treated magnesium silicide Mg 2 Si, in order to improve the strength index of the product.

[0014] When the molten aluminum comes out of the furnace, add A...

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Abstract

The invention provides an automobile wheel hub machining method. The automobile wheel hub machining method comprises the following steps of a smelting process, low-pressure casting, heat treatment, precision machining and surface coating. In the smelting process, silicon metal is added to aluminum liquid when the temperature of the aluminum liquid rises to 760DEG C, the silicon metal and the aluminum liquid are stirred for 25-30 minutes in an electromagnetic mode, wherein the content of the silicon metal is between 6.5% and 7.5%. When the aluminum liquid flows out of a furnace, AlSr alloy, AlTi5B alloy and magnesium are added to a flowing groove, wherein the content of Sr is between 0.008% and 0.012%, the content of Ti is between 0.1% and 0.2%, and the content of the magnesium is between 0.24% and 0.34%. In the low-pressure casting process, the aluminum liquid starts to flow out of the furnace under the temperature between 740DEG C to 750DEG C, refining and degassing are conducted on the aluminum liquid through high-purity nitrogen by 12 minutes, and then the aluminum liquid is conveyed to a low-pressure casting machine heat preserving furnace and is cast. In the heat treatment process, solid solution treatment, aging treatment and hardening treatment are conducted on a semifinished wheel hub formed after casting so as to obtain mechanical properties required by a wheel hub. The automobile wheel hub machining method can improve strength, hardness and forming of the wheel hub and meet requirements for safety performance of a wheel.

Description

technical field [0001] The invention relates to the field of auto parts processing, in particular to a processing method of an aluminum alloy auto wheel hub. Background technique [0002] The wheel hub is one of the important parts of the car, which directly affects the safety performance of the car, especially the aluminum alloy wheel hub, which has high requirements for strength, hardness and plasticity, so as to meet the safety performance requirements of the wheel. The processing accuracy of the wheel hub is high and the processing technology is complicated. Therefore, how to ensure the strength, hardness and plasticity of the wheel hub in the processing technology is a major problem that needs to be solved in wheel hub processing. [0003] In the manufacturing process of the wheel hub in the prior art, the process steps that the casting wheel hub needs to go through from the aluminum water to the finished product roughly include the following: aluminum alloy solution lo...

Claims

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Application Information

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IPC IPC(8): B23P15/14C22C1/03C22C21/02C22F1/043B22D18/04
Inventor 施晶施明波
Owner 江苏东方龙机车集团有限公司
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