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Self-locking rivet for connecting dissimilar materials and method for connecting dissimilar materials using same

A dissimilar material and rivet technology, applied in the field of self-locking rivets, can solve problems such as thermal expansion and deformation in the connection area, product safety and reliability hazards, and failure

Inactive Publication Date: 2020-07-03
QOROS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Usually, after the self-locking riveting is completed, the nail legs are in close contact with the material. When connecting dissimilar materials such as steel and aluminum, due to the different thermal expansion coefficients of different materials, when the external temperature changes, especially when there is a significant difference between high and low temperature, the connection area There are risks of thermal expansion, deformation and failure, which bring great hidden dangers to product safety and reliability

Method used

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  • Self-locking rivet for connecting dissimilar materials and method for connecting dissimilar materials using same
  • Self-locking rivet for connecting dissimilar materials and method for connecting dissimilar materials using same
  • Self-locking rivet for connecting dissimilar materials and method for connecting dissimilar materials using same

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Embodiment Construction

[0041] The preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. The following descriptions are exemplary and not limiting to the present invention. Any other similar situations also fall within the protection scope of the present invention.

[0042] In the following detailed description, directional terms, such as "left", "right", "upper", "lower", "front", "rear", etc., are used with reference to directions described in the drawings. Components of embodiments of the present invention may be positioned in a variety of different orientations, and directional terms are used for purposes of illustration and not limitation.

[0043] Figure 1a A self-locking rivet 1 for connecting dissimilar materials in the prior art is shown, and the self-locking rivet 1 includes a rivet head 1.1 and a cylindrical nail leg 1.2 protruding far from one side surface of the rivet head. From Figure 1a It can be seen f...

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Abstract

The present invention relates to a self-locking rivet (1) for connecting dissimilar materials and a method for connecting dissimilar materials using the same. The self-locking rivet comprises a rivethead (1.1) and a cylindrical rivet leg (1.2) which extends out from one side surface of the rivet head to the far side. The self-locking rivet is characterized in that the rivet leg (1.2) is configured such that the outer side surface of the rivet leg (1.2) is inclined outward at least in one section in an extension from the root of the rivet leg to the free end of the rivet leg (1.2) such that there is a certain gap e between the root of the rivet leg and a upper layer connecting material (2).

Description

technical field [0001] The invention relates to a self-locking rivet for connecting dissimilar materials. The self-locking rivet comprises a rivet head and a cylindrical nail leg protruding from one side surface of the rivet head to the far side. [0002] The invention also relates to a method for connecting dissimilar materials using the self-locking rivet. Background technique [0003] In the automotive industry, the self-locking riveting process is often used for joining dissimilar materials such as aluminum-aluminum and steel-aluminum. [0004] Usually, after the self-locking riveting is completed, the nail legs are in close contact with the material. When connecting dissimilar materials such as steel and aluminum, due to the different thermal expansion coefficients of different materials, when the external temperature changes, especially when there is a significant difference between high and low temperature, the connection area There are risks of thermal expansion, de...

Claims

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Application Information

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IPC IPC(8): F16B19/08F16B5/04
CPCF16B5/04F16B19/083
Inventor 张兴龙
Owner QOROS
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