Method of laser joining of aluminum alloy member and resin member

A technology of aluminum alloy parts and joining methods, which is applied in the direction of surface pretreatment bonding methods, laser welding equipment, welding equipment, etc., can solve problems such as inadequacy, and achieve high adhesion strength, air tightness, and excellent adhesion strength Effective effect with airtightness and anchoring effect

Inactive Publication Date: 2012-10-03
NIPPON LIGHT METAL CO LTD
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  • Abstract
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Problems solved by technology

[0004] From the viewpoint of obtaining a composite material in which metal materials and resin parts are integrally joined, the above-mentioned joining method is a useful technology, but if such a composite material is to be applied to a mechanical structure that requires strong adhesive force (adhesive force) and rigidity things, it is not enough

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  • Method of laser joining of aluminum alloy member and resin member
  • Method of laser joining of aluminum alloy member and resin member
  • Method of laser joining of aluminum alloy member and resin member

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Embodiment Construction

[0037] The inventors conducted intensive studies on the reasons and countermeasures for the failure of the aluminum-resin composite manufacturing method using the laser bonding methods proposed in the above-mentioned Patent Documents 1 and 3 to obtain sufficient bonding strength.

[0038] Assuming that the softened resin part does not mesh well with the unevenness of the aluminum surface during this process, in order to improve the bondability with the composite resin part in the manufacture of aluminum-resin composites, the improvement of the surface shape of the aluminum alloy part is studied Strategy.

[0039] In order to improve the bondability with the resin part, it is effective to form a concavo-convex portion having a high anchoring effect on the surface of the aluminum alloy part. However, it is difficult to exhibit the anchoring effect by general etching treatment for Al alloys for casting, which have a wide range of metal compositions and complex metal structures. ...

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Abstract

By laser joining using a member with a complicated surface shape as the aluminum alloy member, a composite is obtained having increased bonding strength with the resin member. After forming asperities by etching treatment on the surface of the aluminum alloy member to be joined, one surface of said aluminum alloy member is placed on the resin member, and then a laser is irradiated onto the other surface of said aluminum alloy member, softening the resin member contacting the aluminum alloy member and filling the aforementioned asperities with said resin. Blasting may be optionally performed before etching.

Description

technical field [0001] The present invention relates to a laser bonding method for exhibiting high bonding strength between an aluminum alloy part and a resin part. Background technique [0002] Aluminum-resin composite materials, which integrate aluminum alloy parts of different materials and synthetic resin, are widely used in a wide range of fields such as automobiles, home appliances, and industrial equipment. Conventionally, such an aluminum-resin composite material is an aluminum-resin composite material obtained by crimping an aluminum alloy part and a resin part in the presence of an adhesive. [0003] However, recently, a method of integrating a high-strength engineering resin without a binder has been proposed. For example, in Patent Document 1, by using a laser light source in the bonding method of the metal material and the resin material, the bonding portion is heated to a temperature at which air bubbles are generated in the resin material of the bonding porti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/16B23K26/20B23K26/32C23F1/20B23K26/21
CPCC09J2400/166B23K26/324C23F1/20B29C66/30325C09J5/02B29C65/44B29C66/30326C09J2205/31B29C66/30322B29C2791/009B29C66/30321B23K26/421B29C66/1122B29C66/3032C09J2400/163C09J2400/226B29C66/7422B29C65/16B29C65/1629B29C65/8215B29C66/02B29C66/02245B29C66/026B29C66/71B29C66/73161B23K26/60C09J2301/416B29K2067/006B23K26/32B23K26/21
Inventor 远藤正宪堀田元司堀久司
Owner NIPPON LIGHT METAL CO LTD
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