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A method for enhancing the connection strength of heterogeneous metal composite panels

A technology of joining strength and dissimilar metals, applied in the direction of metal rolling, etc., can solve the problems of large difference in physical and chemical properties, difficult metallurgical reaction, low joining strength, etc., to achieve the effect of improving strength, excellent quality and improving joining strength

Active Publication Date: 2021-02-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problem of low connection strength of heterogeneous metal clad plates, such as Ti alloy / Mg alloy, Ti alloy / Al alloy, steel / Mg alloy, etc., which have large differences in physical and chemical properties and difficult metallurgical reactions. easy cracking problem, and provide a method to enhance the connection strength of heterogeneous metal composite panels

Method used

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  • A method for enhancing the connection strength of heterogeneous metal composite panels
  • A method for enhancing the connection strength of heterogeneous metal composite panels
  • A method for enhancing the connection strength of heterogeneous metal composite panels

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specific Embodiment approach 1

[0015] Specific implementation mode 1: A method of enhancing the connection strength of heterogeneous metal composite panels according to this implementation mode is carried out in the following steps:

[0016] 1. Preparation of prefabricated holes: prepare two kinds of alloy plates, which are respectively recorded as alloy plate Ⅰ and alloy plate Ⅱ, and the hardness of alloy plate Ⅰ is greater than that of alloy plate Ⅱ; several holes are uniformly processed on one side of alloy plate Ⅰ Prefabricated holes;

[0017] 2. Surface cleaning: use mechanical polishing to uniformly polish the side of the alloy plate I with several prefabricated holes, and clean it with alcohol and acetone in turn;

[0018] 3. Hot rolling forming: Align and fix the alloy plate Ⅰ and alloy plate Ⅱ, and then put them in the holding furnace at a temperature above the recrystallization temperature of the alloy plate Ⅱ for 10 to 30 minutes. After the plate temperature is uniform, put it on the hot rolling ...

specific Embodiment approach 2

[0022] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the alloy plate I is titanium alloy plate, aluminum alloy plate, magnesium alloy plate or steel plate, and the alloy plate II is titanium alloy plate, aluminum alloy plate Plate, magnesium alloy plate or steel plate. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0023] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the alloy plate I in step 1 is an aluminum alloy plate, and the alloy plate II is a magnesium alloy plate. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

A method for enhancing the joint strength of heterogeneous metal composite panels. The invention relates to a method for enhancing the connection strength of heterogeneous metal composite plates. The present invention aims to solve the problem of low connection strength of heterogeneous metal clad plates, such as Ti alloy / Mg alloy, Ti alloy / Al alloy, steel / Mg alloy, etc., which have large differences in physical and chemical properties and difficult metallurgical reactions. Easy cracking problem. Methods: 1. Processing prefabricated holes from riveting on relatively hard metal plates; 2. Cleaning the surface of heterogeneous plates; 3. Rolling plates; 4. Subsequent heat treatment to remove residual stress. By preparing a certain number of self-riveting prefabricated holes on a metal plate with relatively high strength and hardness, not only metallurgical bonding is produced in the rolling production process of the composite plate, but also a part of soft metal is used to fill the self-riveting configuration to form a mechanical riveting Combined, the connection strength of heterogeneous metal composite panels is greatly improved, and the quality of composite panels is improved.

Description

technical field [0001] The invention relates to a method for enhancing the connection strength of heterogeneous metal composite plates. Background technique [0002] Composite panels are one of the important ways to reduce the weight of structural materials and achieve multiple performances. In particular, heterogeneous metal composite panels have different physical, chemical and mechanical properties while taking into account light weight. They have a wide range of applications and urgent needs in aerospace, advanced equipment, and high-end products. For example, titanium alloy has the advantages of high specific strength, high specific stiffness and corrosion resistance, magnesium alloy has the advantages of light weight, shock absorption, and low price, and Ti / Mg composite board can take advantage of the advantages of the two alloys at the same time to meet the needs of skeletons in the aerospace field. High-strength and light-weight components, or corrosion-resistant, l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/38
CPCB21B1/38B21B2001/386
Inventor 邵斌宗影影唐伟徐振海单德彬郭斌
Owner HARBIN INST OF TECH