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Bonding method

A joining method and one-way technology, applied in welding equipment, welding/welding/cutting items, non-electric welding equipment, etc., can solve the problems of increased tool cost and increased damage of rotating tools.

Pending Publication Date: 2021-10-15
NIPPON LIGHT METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If friction stir welding is performed on metal members with high hardness, there is a problem that the damage of the rotating tool will increase and the cost of the tool will increase.

Method used

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Experimental program
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Effect test

no. 1 approach

[0067] A first embodiment of the present invention will be described with appropriate reference to the drawings. In the bonding method of the first embodiment, a preparation step, a butting step, and a bonding step are performed. Such as figure 1 As shown, in this embodiment, friction stir welding is performed on the first metal member 1 and the second metal member 2 . "Front side" in the following description means the side opposite to "back side".

[0068] Such as figure 1 As shown, the preparation step is a step of preparing the first metal member 1 , the second metal member 2 and the auxiliary member 10 . The first metal member 1 and the second metal member 2 are plate-shaped metal members. The first metal member 1 and the second metal member 2 are not particularly limited as long as they are metals capable of friction stirring. For example, aluminum or an aluminum alloy is used. In this embodiment, aluminum alloy casting materials, such as JISH5302 ADC12 (Al-Si-Cu sy...

no. 2 approach

[0082] Next, a joining method according to a second embodiment of the present invention will be described. Figure 4 It is a sectional view showing the butt joint process of the joint method according to the second embodiment of the present invention. In the bonding method of the second embodiment, a preparation step, a butting step, and a bonding step are performed. In the second embodiment, the shape of the auxiliary member 10A is mainly different from that of the first embodiment. In this embodiment, the description will focus on parts different from those in the first embodiment.

[0083] Such as Figure 4 As shown, the first metal member 1 and the second metal member 2 are the same as those of the first embodiment. The auxiliary member 10A includes: a main body 11 having a trapezoidal cross section; and a protrusion 12 protruding downward from a back surface (bottom) 10 d of the main body 11 . The cross section of the protrusion part 12 is a rectangle whose width is w...

no. 3 approach

[0090] Next, a joining method according to a third embodiment of the present invention will be described. Figure 5 It is a cross-sectional view showing a butt joint step of the joining method according to the third embodiment of the present invention. In the bonding method of the third embodiment, a preparation step, a butting step, and a bonding step are performed. In the third embodiment, mainly the shape of the auxiliary member 10B is different from that of the first embodiment. In this embodiment, the description will focus on parts different from those in the first embodiment.

[0091] In the preparation process, the first metal member 1B, the second metal member 2 and the auxiliary member 10B are prepared. The end surface 1a of the first metal member 1B is perpendicular to the front surface 1b and the rear surface 1c. The second metal member 2 is the same as the first embodiment. The auxiliary member 10B is an auxiliary member 10B having a trapezoidal cross section,...

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PUM

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Abstract

The present invention is characterized by including a bonding step in which: a rotating rotary tool (F) is inserted from only a surface (10a) side of an auxiliary member (10); and in a state where only a stirring pin (F2) is brought into contact with the auxiliary member (10), the base end side of the stirring pin (F2) is left exposed, and the outer peripheral surface of the stirring pin (F2) is brought into slight contact with a first metal member (1) and a second metal member (2), the rotary tool (F) is moved relatively along butted parts (J1, J2) to bond the first metal member (1) and the second metal member (2) together via the auxiliary member (10). The present invention is also characterized in that: the auxiliary member (10) comprises, on at least one side surface thereof, an inclined surface that tapers going away from the surface (10a); and the first metal member (1) and / or the second metal member (2) comprises an inclined surface (end surface 1a, 2a) which inclines from the front surface to the rear surface in accordance with the inclined surface of the auxiliary member (10).

Description

technical field [0001] The present invention relates to a bonding method. Background technique [0002] For example, Patent Document 1 discloses an invention in which friction stir welding is performed on a pair of plate-shaped metal members using a rotary tool. In the above invention, an auxiliary member softer than a metal member is interposed between a pair of metal members, and a rotary tool is inserted into the auxiliary member to perform friction stirring. If friction stir welding is performed on metal members with high hardness, damage to the rotary tool will increase and the cost of the tool will increase. However, according to the present invention, since the rotary tool is inserted into the soft auxiliary member, metal members having high hardness can be joined appropriately. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2007-83242 Contents of the invention [0006] The technical problem to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12
CPCB23K20/122B23K20/1265B23K20/128B23K20/125B23K2101/18B23K2103/10B23K20/1255
Inventor 濑尾伸城及川惠太吉田谅
Owner NIPPON LIGHT METAL CO LTD