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Friction rabbling welding method

A technology of friction stir welding and surfacing, which is applied to welding equipment, non-electric welding equipment, rails, etc., and can solve the problems of not being able to achieve good welding of extruded frame members

Inactive Publication Date: 2004-02-25
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, it is believed that a good weld of two extruded frame members cannot be achieved because the other extruded frame member does not have a raised portion on the welded portion

Method used

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Experimental program
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Effect test

Embodiment Construction

[0023] In case it is used in rail vehicle body, see Figure 1 to Figure 6 Friction stir welding according to one embodiment of the present invention will be described.

[0024] exist Image 6 In , the side frame body 20 of a rail vehicle is formed by connecting a plurality of aluminum alloy extruded frame members 30 , 40 , 50 . The forming direction of the aluminum alloy frame members 30, 30 arranged between the entrance 21 and the window 25 and the direction of the forming of the frame members 30, 30 arranged between one window 25 and the longitudinally formed extruded frame member 30 arranged near the window 25 Forming direction in Image 6 Middle and vertical respectively.

[0025] The forming direction of the aluminum alloy extruded frame members 40, 40 at the lower part of the window is Image 6 Medium is horizontal. In other words, the forming direction of the extruded frame member 30 and the forming direction of the extruded frame member 40 are arranged perpendicul...

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PUM

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Abstract

A raised portion 32 is provided on an upper face of an end portion of a plate 31 which forms one side of a frame member 30. An end portion of a plate 41 of another frame member 40 is abutted with the plate 31 of the frame member 30. The frame members 30 and 40 are aluminum alloy extruded frame members and the direction of extrusion of the two frame members are orthogonal. A welding padding is carried on an upper face of the plate 41 of the frame member 40. Under this condition, a rotary tool is inserted from above and a friction stir welding is carried out. Accordingly, the padding serves the same function on the plate the raised portion 32 on the plate so that a good welding can be carried out.

Description

technical field [0001] The present invention relates to friction stir welding for welding of, for example, aluminum alloy frame members and the like. In particular, the present invention relates to friction stir welding for welding, for example, when the height positions of parts to be welded of two butted aluminum alloy frame members are different. Background technique [0002] As shown in Japanese Patent Application Laid-Open Document Hei 9-309164 (EP 0797043A2), the friction stir welding method is a method in which a round bar (referred to as Rotary welding tool) and move the rotary welding tool along the welding seam for welding, the welding parts of the two butt joint frame members to be welded are heated to soften and promote their plastic fluidization and welding. [0003] The rotary welding tool includes a small diameter section inserted toward the welded portion and a large diameter section positioned outside the small diameter section. The small diameter section ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12B23K33/00
CPCB23K2201/26B23K20/12B23K2201/045B23K33/00B23K20/1265B23K2101/26B23K2101/045Y10T428/12493
Inventor 佐藤章弘江角昌邦福寄一成
Owner HITACHI LTD