Method for combining different types of aluminum materials and combined part of different types of aluminum materials

A technology for bonding parts and aluminum-based composite materials, which is applied to the bonding method of dissimilar aluminum materials and the field of bonding parts of dissimilar aluminum materials, can solve the problems of complex groove processing, accelerated corrosion, stress cracking, etc., so as to avoid component segregation, Combination method is simple, the effect of wide adaptability

Inactive Publication Date: 2015-10-28
GUANGDONG JANUS SMART GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, in some literatures, the process of combining extrusion parts and die-casting parts is used to process aluminum alloy extrusion parts with a groove structure with a narrow outside and wide inside, and connect them with die-casting parts by riveting, but this processing technology will lead to groove processing. Complicated, large amount of processing, high cost
Another part of the literature uses the method of galvanizing the surface of s

Method used

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  • Method for combining different types of aluminum materials and combined part of different types of aluminum materials

Examples

Experimental program
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Effect test

example 1

[0026] Example 1 (combination of 6063 aluminum alloy and ADC12 aluminum alloy):

[0027] This example can be applied to the middle frame of the mobile phone. The 6063 aluminum alloy used in the middle frame of the mobile phone is an anodic material, which can provide a variety of colors of metal texture appearance, but its die-casting performance is poor. At present, the process is carried out after die-casting. CNC finishing has a large amount of processing and high cost; while the ADC12 aluminum alloy with good die-casting performance cannot be anodized due to silicon content. This example uses 6063 aluminum alloy as the outer frame. After treatment, it is directly die-casted to form the inner frame of ADC12 aluminum alloy, which greatly reduces the amount of processing and can be anodized for appearance. It is expected to be popular in the industry.

[0028] The combination method of the heterogeneous aluminum material of the present example comprises the following steps: ...

example 2

[0037] Example 2 (combination of 7475 aluminum alloy and ADC12 aluminum alloy):

[0038] This example can be applied to complex structures that require high surface mechanical properties. 7475 aluminum alloy has good mechanical properties (strength, hardness), corrosion resistance, and is easy to process, but its die-casting performance is poor, so it is used as a surface structure; ADC12 aluminum alloy is used for internal , which can meet the requirements of the die-casting process, connected by the method of the invention, and can be applied to structural parts with higher requirements on mechanical properties.

[0039] The combination method of the heterogeneous aluminum material of the present example comprises the following steps:

[0040] (1) The 7475 aluminum alloy components are pretreated, and the steps of grinding, degreasing, water washing, alkali washing, water washing, neutralization, and water washing are sequentially carried out according to the general process...

example 3

[0048] Example three (combination of 7075 aluminum alloy and ADC6 aluminum alloy):

[0049] In this example, 7075 aluminum alloy has high strength, is easy to process, and is widely used in the aviation industry. At the same time, it can be anodized, but it cannot be welded, and its corrosion resistance is poor; ADC6 aluminum alloy has good corrosion resistance and can protect 7075 aluminum alloy Free from corrosion and connected by the method of the invention, it can be applied to aircraft structural parts that require high mechanical properties and corrosion resistance of aluminum alloys.

[0050] The combination method of the heterogeneous aluminum material of the present example comprises the following steps:

[0051] (1) The 7075 aluminum alloy components are pretreated, and the steps of grinding, degreasing, water washing, alkali washing, water washing, neutralization, and water washing are sequentially carried out according to the general process of anodic oxidation pre...

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Abstract

The invention discloses a method for combining different types of aluminum materials and a combined part of the different types of aluminum materials. The method includes the following steps: S1, carrying out anodic oxidation, micro-arc oxidation, chemical corrosion or laser drilling on a first type of aluminum material subjected to pretreatment, so as to form a mipor oxide film layer on the surface of the first type of aluminum material; S2, carrying out chambering treatment on the first type of aluminum material; S3, placing the first type of aluminum material in a die-casting mold; S4, smelting a second type of aluminum material; S5, pouring the second type of aluminum material into the die-casting mold for die-cast formation, so as to form the combined part of the two types of aluminum materials. The combined part of different types of aluminum materials, provided by the invention, is formed through combining the first type of aluminum material and the second type of aluminum material through the combining method. The method for combining different types of aluminum materials and the combined part of the different types of aluminum materials, provided by the invention, are stable in combination, high in strength, low in cost and wide in adaptability.

Description

technical field [0001] The invention relates to a bonding method of dissimilar metals, in particular to a bonding method of dissimilar aluminum materials and a bonding piece of dissimilar aluminum materials. Background technique [0002] Aluminum materials are widely used in electronics, aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industries, but with the rapid development of industry, it is more and more difficult for a single aluminum material to meet the requirements for the comprehensive performance of materials. The combination of materials can combine the advantages of each component, so that it has good comprehensive performance, and has a wide range of applications, and has received more and more attention. [0003] Due to the unique physical and chemical characteristics of aluminum materials, a series of problems such as oxidation slag inclusions, gas absorption, thermal cracking, and composition segregation often occur when c...

Claims

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Application Information

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IPC IPC(8): B22D19/16B22D17/00
Inventor 吕凝磊范曦谢守德王长明
Owner GUANGDONG JANUS SMART GRP CO LTD
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