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Friction Stir Welding Method

A friction stir, joining method technology, used in welding equipment, metal processing equipment, manufacturing tools, etc.

Active Publication Date: 2021-06-15
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, only the rotation angle α of the friction stir tool FT around the central axis O increases, the advance angle θ (the angle of the central axis CA to the normal line N of each point on the outer peripheral surface S2), and the friction stir tool FT on the central axis CA Other parameters such as the position in the extended configuration direction have not changed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0039] Hereinafter, regarding the friction stir welding method using the first embodiment of the present invention, figure 1 The shown first member 10 and the second member 20 are joined to produce a box-like (shell-like) product open in one direction (butting process and joining process) will be described. The first member 10 and the second member 20 are made of aluminum alloy. The first member 10 has a side wall portion 11 and a peripheral wall portion 12 . The side wall portion 11 is a substantially rectangular plate-shaped portion. That is, the side wall portion 11 has long side portions 111 , 113 and short side portions 112 , 114 facing each other. The intersecting portion (corner portion C1 a ) of the long side portion 111 and the short side portion 112 of the side wall portion 11 is curved in an arc shape. Moreover, the intersection part (corner part C1b) of the long side part 113 and the short side part 112 of the side wall part 11 is curved in circular arc shape. ...

no. 2 approach

[0058] Next, the procedure of manufacturing the same product as that of the first embodiment using the friction stir welding method according to the second embodiment of the present invention will be described.

[0059] (docking process)

[0060] Also in this embodiment, the 1st member 10 and the 2nd member 20 are butted together similarly to 1st Embodiment. Since the specific procedure of this docking process is the same as that of the first embodiment, description thereof will be omitted.

[0061] (joining process)

[0062] Similar to the first embodiment, the first friction stir welding target site WP1 to the fifth friction stir welding target site WP5 are sequentially welded. A series of steps from joining of the first friction stir welding target site WP1 to joining of the third friction stir welding target site WP3 and from joining of the third friction stir welding target site WP3 to joining of the fifth friction stir welding target site WP5 A series of processes are...

no. 3 approach

[0071] Next, the procedure of manufacturing the same product as that of the first embodiment using the friction stir welding method according to the third embodiment of the present invention will be described.

[0072] (docking process)

[0073] Also in this embodiment, like the first embodiment, the first member 10 and the second member 20 are butted together. Since the specific procedure of this docking process is the same as that of the first embodiment, description thereof will be omitted.

[0074] (joining process)

[0075]Similar to the first embodiment, the first friction stir welding target site WP1 to the fifth friction stir welding target site WP5 are sequentially welded. A series of steps from joining of the first friction stir welding target site WP1 to joining of the third friction stir welding target site WP3 and from joining of the third friction stir welding target site WP3 to joining of the fifth friction stir welding target site WP5 A series of processes a...

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PUM

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Abstract

To provide a friction stir welding method capable of suppressing the occurrence of welding defects. Along the first friction stir welding target site having a planar outer peripheral surface extending in a predetermined direction, and along the The second friction stir welding target site on the curved outer peripheral surface extending in a predetermined direction scans the friction stir tool FT to sequentially and continuously join the first friction stir welding target site and the second friction stir welding target site. The relative position or posture of the friction stir tool and the part to be joined is controlled so that the rear half of the shoulder of the friction stir tool in the scanning direction enters deeper into the friction stir welding target part than the front half, and the The penetration depth of the shoulder portion into the first friction stir welding target site is the same as the penetration depth of the shoulder portion into the second friction stir welding target site.

Description

technical field [0001] The present invention relates to a friction stir welding method. Background technique [0002] For example, as described in the following patent document 1, the friction stir welding method of two metal members is known. In the first step (butting step) of this friction stir welding method, first, the end faces of two metal members (first member and second member) that are members to be joined are brought into contact. In addition, the first member and the second member are arranged so that no step is formed at the interface between the first member and the second member. In the second step (welding step), the tip portion (probe portion) of the friction stir tool is pressed into the friction stir welding target site, and is scanned along the friction stir welding target site. Thereby, the friction stir welding object part (that is, the part located on both sides of the said butted end surface) is stirred and plastically flows. This joins the first p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/00B23K20/26
CPCB23K20/00B23K20/26
Inventor 山口修平德田善范糟谷成孝寺泽槙惠本田守
Owner AISIN SEIKI KK