Manufacturing method for aluminum alloy automobile hub

A technology for automobile wheels and manufacturing methods, which is applied in the direction of wheels, manufacturing tools, vehicle parts, etc., can solve the problems of long manufacturing time, high manufacturing cost, and low production efficiency of wheel hubs, and achieve shortened processing time, improved elongation performance, and production The effect of improving efficiency

Inactive Publication Date: 2013-04-03
TIANJIN DAIKA WHEEL HUB MFG
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AI Technical Summary

Problems solved by technology

[0003] At present, in the casting process of the wheel hub, the steps that the casting wheel needs to go through from the aluminum water to the finished product are: aluminum alloy solution low pressure casting (blank), heat treatment (solution, quenching, aging), machining, surface coa

Method used

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  • Manufacturing method for aluminum alloy automobile hub
  • Manufacturing method for aluminum alloy automobile hub
  • Manufacturing method for aluminum alloy automobile hub

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Embodiment Construction

[0031] The present invention will be further described in detail below with reference to the accompanying drawings through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0032] A manufacturing method of an aluminum alloy automobile wheel hub adopts the following process steps:

[0033] (1) Acceptance of aluminum water: to ensure that the quality of aluminum alloy solution is qualified, and the ratio index of aluminum liquid is as follows: A356.2 alloy ingot: aluminum scrap: geometric waste = 6:3:1, so that the percentage of Si in the important chemical composition of aluminum liquid is The content reaches 6.5%~7.5%, the percentage of Mg is 0.28%~0.32%, and the percentage of Fe is less than or equal to 0.15%.

[0034] (2) Low-pressure casting: inject the qualified aluminum alloy solution into the low-pressure casting mold, and cast it into a wheel hub blank.

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Abstract

The invention relates to a manufacturing method for an aluminum alloy automobile hub, which comprises the following steps: (1) checking and accepting molten aluminum; (2) casting at low pressure; (3) detecting; (4) performing thermal treatment; (5) machining; (6) performing coating pretreatment; (7) spraying body powder; (8) performing thermal treating for spraying the body powder; (9) painting; and (10) performing thermal treating for painting. According to the manufacturing method provided by the invention, a feeding chain speed is reduced from 27 min/rack to 20 min/rack; the processing time is shortened; the production efficiency of a hub product is greatly increased; the capacity of thermal treating process is increased by near 1/4; equal property values of the product all meet a standard; and the ductility property of the product is promoted.

Description

technical field [0001] The invention belongs to the field of automobile parts processing, and relates to a processing method of an automobile wheel hub, in particular to a manufacturing method of an aluminum alloy automobile wheel hub. Background technique [0002] The wheel hub is an important part of the car. Its main function is to bear the load and rotate the wheel forward. It bears both the axial load and the radial load. The performance of the wheel hub has a great influence on the overall performance of the vehicle. The alloy wheel hub has the advantages of light weight, low inertial resistance, The advantages of high manufacturing precision and good heat dissipation performance are conducive to improving the straight-line driving performance of the car and reducing the rolling resistance of the tire. At present, the automobile wheel hubs on the market are mainly made of aluminum alloys. [0003] At present, in the process of wheel hub casting, the casting wheels need...

Claims

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Application Information

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IPC IPC(8): B05D3/02B05D3/10B05D7/14C21D1/18C21D9/34C22F1/04B60B27/00
Inventor 邱立宝刘杰
Owner TIANJIN DAIKA WHEEL HUB MFG
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