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Metal thin plate joining method and metal thin plate joint structure

A technology of thin metal plates and joining methods, which is applied in metal processing equipment, welding/welding/cutting items, welding equipment, etc., can solve the problems of many restrictions on plate thickness and dimensional accuracy, difficulties in high-precision position alignment of joint surfaces, etc., and achieve easy Quality, good bonding results

Active Publication Date: 2019-09-06
KURIMOTO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in the above-mentioned Patent Document 1, problems such as many restrictions on the dimensional accuracy of the plate thickness before joining and difficulties in high-precision alignment of the joining surfaces cannot be sufficiently solved.

Method used

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  • Metal thin plate joining method and metal thin plate joint structure
  • Metal thin plate joining method and metal thin plate joint structure
  • Metal thin plate joining method and metal thin plate joint structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] like Figure 7A and Figure 7B As shown, aluminum alloys (aluminum die casting ADC12) having a thickness of 2.0 mm were joined to each other. The rotational speed of the rotary tool 4 was 1000 rpm, the joining speed was 500 mm / min, and the insertion depth of the rotary tool 4 was 1.85 mm.

[0064] Even when the first thin metal plate 1 and the second thin metal plate 2 are joined with aluminum alloy, which is the same light metal alloy, and have the same thickness, good results can be obtained without thickness reduction at the joint portion. exist Figure 7B In , the interface 7 between the first metal sheet 1 and the second metal sheet 2 also appears in the cross-section.

Embodiment 2

[0066] like Figure 8 As shown, magnesium alloys (AM-based alloys) having a thickness of 2.0 mm were joined to each other. The rotational speed of the rotary tool 4 was 2000 rpm, the joining speed was 100 mm / min, and the insertion depth of the rotary tool 4 was 1.85 mm.

[0067] Even when the first thin metal plate 1 and the second thin metal plate 2 are joined together, which are the same light metal alloy, that is, a magnesium alloy, and have the same thickness, good results can be obtained without thickness reduction at the joint portion. Although not shown, in this case also the interface 7 between the first thin metal plate 1 and the second thin metal plate 2 appears in the cross section.

Embodiment 3

[0069] like Figure 9A and Figure 9B As shown, a magnesium alloy (AM-based alloy; first metal sheet 1 ) having a thickness of 2.0 mm and an aluminum alloy (ADC12; second metal sheet 2 ) having a thickness of 2.0 mm were joined together. The rotational speed of the rotary tool 4 was 2000 rpm, the joining speed was 100 mm / min, and the insertion depth of the rotary tool 4 was 1.85 mm.

[0070] Even when the first thin metal plate 1 and the second thin metal plate 2 are joined with different light metal alloys and have the same thickness, good results can be obtained without reducing the plate thickness at the joint portion. In this case, as Figure 9B As shown, the interface 7 between the first metal sheet 1 and the second metal sheet 2 also appears in cross-section.

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Abstract

One end of a second metal thin plate (2) is arranged overlapping one end of a first metal thin plate (1) placed on top of a backing metal (6) such that in a side view the distance between the ends isa prescribed length, and a rotating rotary tool (4) is pressed against the overlapped second metal thin plate (2) from above, thereby using pressure and frictional heat generated between the rotatingtool and a material to be joined to join the one end of the second metal thin plate (2) and the one end of the first metal thin plate (1).

Description

technical field [0001] The present invention relates to forming a joint such as a butt joint by overlapping a thin metal plate with a thickness of 2.0 mm or less and at least a part of a thin metal plate with a thickness of 2.0 mm or less, and heating and pressing the overlapping portion. A method of joining thin metal plates and a joining structure of thin metal plates. Background technique [0002] In recent years, thin metal plates with a plate thickness of 2.0 mm or less have been used in various fields. In the joining of such metal thin plates, if the metal thin plates are butted by the conventional fusion joining method, there are many problems such as occurrence of melting and deformation, and many restrictions on dimensional accuracy before joining. In order to solve these problems, a simple butt joining technique of thin metal plates is indispensable. [0003] On the other hand, friction stir welding (Friction stir welding: FSW) is known as a typical solid phase w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12
CPCB23K20/1265B23K2103/10B23K2103/15B23K2103/18
Inventor 高业飞閤师昭彦廖金孙
Owner KURIMOTO LTD