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Method for friction stir welding, jig therefor, member with friction stir-welded portion, and tool for friction stir welding

A technology of friction stir welding and fixtures, applied in the direction of manufacturing tools, welding equipment, non-electric welding equipment, etc., can solve the problems of increased material cost, increased cost of friction stir welding, expensive equipment investment, etc., to improve processing efficiency and shorten processing time , the effect of improving efficiency

Inactive Publication Date: 2006-09-27
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The disadvantage of the technique disclosed in Patent Document 2 is that the structure of the friction stir welding apparatus is complicated and the equipment investment is expensive because two friction stir welding tools need to be installed in opposite directions
[0010] The technique disclosed in Patent Document 3 leads to an increase in material cost due to the need for an additional lump and thus an increase in the cost of friction stir welding
In addition, since a mechanism for supplying additional lumps is required, the structure of the friction stir welding apparatus is also complicated and equipment investment is expensive

Method used

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  • Method for friction stir welding, jig therefor, member with friction stir-welded portion, and tool for friction stir welding
  • Method for friction stir welding, jig therefor, member with friction stir-welded portion, and tool for friction stir welding
  • Method for friction stir welding, jig therefor, member with friction stir-welded portion, and tool for friction stir welding

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no. 1 example

[0095] According to a first embodiment, friction stir welding is performed as follows:

[0096] First, if figure 2 As shown, a first workpiece W1 and a second workpiece W2 are stacked to form a stacked assembly 6 resting on a support fixture 10 . At this point, the stack assembly 6 covers the recess 18 .

[0097] Then, the friction stir welding tool 7 descends to a position spaced apart from the stack assembly 6 by a predetermined distance. Thereafter, the rotor 9 is rotated so that the probe 8 is brought into sliding contact with the upper end surface of the stack assembly 6 (the upper end surface of the second workpiece W2). When the probe 8 is held in sliding contact with the upper end surface of the stack component 6 , frictional heat is generated to soften the area of ​​the stack component 6 contacted by the probe 8 and the vicinity thereof. results, such as image 3 As shown, the probe 8 is embedded in the stack 6 and the material of the stack 6 flows into the reces...

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Abstract

A recess portion (18) with a substantially circular horizontal cross-section is provided in the upper end surface of a supporting jig (10). When a probe (8) of a device (7) for friction stir welding is buried in the upper end surface of a layered portion (6), material in the vicinity of the buried portion flows plastically. This causes the plastically flowed material to flows into the recess portion (18), and as a result, the material is stirred in a relatively large region. When the material flowed into the recess portion (18) is cooled and solidified, a friction stir-welded portion-possessing member (42) having a projection portion (44) is obtained.

Description

technical field [0001] The present invention relates to a friction stir welding method for joining stacked assemblies of stacked parts, a jig for such a friction stir welding method, a component having a friction stir welded joint produced by such a friction stir welding method , and a friction stir welding tool for joining stacked or adjoining assemblies of metal workpieces by friction stir welding. Background technique [0002] Stacked assemblies of components typically rely on spot welding to join them. In recent years, it has been proposed to join such stacked components by friction stir welding (for example, see Patent Documents 1 to 3). [0003] Figure 28 with patent document 1 figure 1 In the same manner as the device shown in , a stack assembly 6 and a friction stir welding tool 7 are shown, the stack assembly 6 includes a first workpiece W1 and a second workpiece W2 stacked together and placed on a support fixture 3, the friction stir welding The tool 7 has a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12
Inventor 村川敏浩脇坂泰成大久保聪士
Owner HONDA MOTOR CO LTD
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