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Automobile hub and preparation method thereof

A technology of automobile hubs and hubs, applied in the directions of hubs, vehicle parts, transportation and packaging, etc., can solve the problems of scratching and damage to the edge of the hub, being easily scratched, and bending the hub rim, and achieve the effect of improving the impact resistance.

Inactive Publication Date: 2015-12-02
WUXI LEHUA AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, whether it is a steel wheel or an aluminum wheel, it will be damaged due to impact. After the wheel is damaged, the general 4S shop recommends that the owner replace the new wheel to ensure driving safety. After all, there are traffic accidents due to tire problems. mostly serious
2. It takes at least 100 yuan to replace a wheel hub, which is relatively expensive
The prior art also has repairs to the wheel hubs, and the scope of maintenance mainly includes first, scratches and damages on the edges of the wheel hubs, which is the most common damage to the wheel hubs, mainly because when the car hubs rotate against the edge of the road, they are easily scratched
The second is that the edge of the hub is damaged by impact. When the hub is accidentally hit by a hard object, it is easy to cause the edge to break
The fourth is that the wheel hub is broken, and the wheel hub is twisted and deformed. When the car is hit by a strong collision or hits a hard object, it is easy to cause the wheel hub rim to bend, deform, etc.
But this kind of repair also needs to spend a lot of time and money, and the safety performance cannot be guaranteed
[0004] And now there is no way to make the wheel hub not easily deformed after being hit, or measures that can be easily repaired after deformation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An automobile wheel hub, the wheel hub includes a hub body and an outer cladding layer of the hub body, the material of the hub body is hard aluminum alloy; the material of the outer cladding layer of the body is one-way shape memory alloy.

[0020] The preparation method of the wheel hub includes the following steps: forming the hard aluminum alloy into the hub body by semi-solid metal forming technology, and adding hard aluminum alloy powder with a particle size of 1um during the semi-solid melting process to promote the hard aluminum alloy in melting A semi-solid substance is formed during the process to make its performance better; in order to protect the hard aluminum alloy from being corroded when outsourcing the one-way shape memory alloy, a layer of 0.001mm thick epoxy anti-corrosion coating is applied on the hub body; finally, the In the way of melting and casting, the body prepared by hard aluminum alloy is used as the core film of the casting mold, and the one...

Embodiment 2

[0023] An automobile wheel hub, the wheel hub includes a hub body and an outer cladding layer of the hub body, the material of the hub body is superhard aluminum alloy; the material of the outer cladding layer of the body is a full-range shape memory alloy.

[0024] The preparation method of the hub includes the following steps: forming the hub body with super-hard aluminum alloy using semi-solid metal forming technology, and coating the outer layer of the hub body with a one-way shape memory alloy by laser melting after the hub body is formed to form an 8mm thick The outer cladding of the hub body, in which the whole shape memory alloy powder is laid with a thickness of 20mm per layer, is melted by a laser pulse with a scanning current of 140A, a laser frequency of 12Hz, a scanning distance of 0.25mm, and a pulse width of 5.0ms.

[0025] Implementation effect: the yield strength of the hub reaches 165MPa.

Embodiment 3

[0027] An automobile wheel hub, the wheel hub includes a hub body and an outer cladding layer of the hub body, the material of the hub body is superhard aluminum alloy; the material of the outer cladding layer of the body is a one-way shape memory alloy.

[0028] The preparation method of the wheel hub comprises the following steps: forming the hub body with a superhard aluminum alloy using semi-solid metal forming technology; A layer of 0.005mm thick silicone high-temperature-resistant coating; the one-way shape memory alloy is coated on the outer layer of the hub body by laser melting to form a 6mm thick outer cladding of the hub body; the one-way shape memory alloy powder is made of each layer The layer is laid with a thickness of 10mm and melted by a laser pulse with a scanning current of 150A, a laser frequency of 13Hz, a scanning distance of 0.118mm, and a pulse width of 4.0ms to form the outer cladding of the hub.

[0029] Implementation effect: the yield strength of th...

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Abstract

The invention specifically provides an automobile hub and a preparation method thereof, which belongs to the field of automobile hubs. The hub comprises a hub main body and a hub main body outer cladding, wherein the hub main body is made of a hard aluminium alloy or a super-hard aluminium alloy; and the hub main body outer cladding is made of a shape memory alloy. Through a method of using a composite layer, the anti-impact performance of the hub is improved, the hub can automatically return to the original shape after being impacted, and the service life of the hub is prolonged.

Description

technical field [0001] The invention belongs to the field of vehicle wheels, in particular to an automobile wheel and a method for preparing the wheel. technical background [0002] As the most intimate part of the road surface, the wheel hub is undoubtedly a vulnerable part on the car body, and the wheel hub is the most valuable part of the wheel. However, it will also deform when encountering a strong external impact. Usually, the damage to the wheel hub of a car is caused by external forces, such as wear, fracture, notch, corrosion, dent, distortion, deformation, etc. Such problems will seriously affect the driving safety of the vehicle. Existing wheels are mainly made of steel or aluminum products. When you pass through some potholes and road teeth, the steel wheels will produce slight deformation after the wheel is impacted. After a long time, there will be obvious deformation here. , causing the car to sway from side to side while driving; the aluminum wheel hub is d...

Claims

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Application Information

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IPC IPC(8): B60B27/00B22D19/08B22D19/16
Inventor 钱国东
Owner WUXI LEHUA AUTOMATION TECH
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