Unlock instant, AI-driven research and patent intelligence for your innovation.

Friction stir welding apparatus for overlapped joints

A friction stir welding and lap joint technology, which is used in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of easy formation of voids and difficult to join components, and achieve the effect of preventing void defects and preventing upward curling.

Active Publication Date: 2014-11-05
三菱重工工程株式会社
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like Figures 9(b) to 9(d) As shown, in the conventional friction stir welding apparatus 21 for lap joints, the problem is that it is difficult to let the softened members 22, 23 to be joined flow up and down in the area surrounding the probe 26, so in the area surrounding the tip 26a of the probe 26 Easy to form void defects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Friction stir welding apparatus for overlapped joints
  • Friction stir welding apparatus for overlapped joints
  • Friction stir welding apparatus for overlapped joints

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0062] Referring to the drawings, a friction stir welding apparatus for lap joints according to a first embodiment of the present invention will be described below. figure 1 is a side view of a friction stir welding apparatus for lap joints according to a first embodiment of the present invention, figure 2 is an enlarged side view of a probe of a friction stir welding apparatus for lap joints according to a first embodiment of the present invention; and image 3 yes figure 1 Diagram of the friction stir welding setup shown for lap joints viewed from below.

[0063] Such as figure 1 As shown, the friction stir welding apparatus 1 for lap joints according to the first embodiment overlaps and joins a pair of members 2, 3 to be joined, and is provided with a columnar rotor 4 and a columnar probe 5, and the probe 5 is provided from the rotor 4 stick out.

[0064] Such as figure 1 As shown, the rotor 4 is provided with a shoulder 6 which is in contact with the surface of t...

no. 2 approach

[0072] Referring to the drawings, a friction stir welding apparatus for lap joints according to a second embodiment of the present invention will be described below. Figure 4 is a side view of a friction stir welding apparatus for lap joints according to a second embodiment of the present invention, Figure 5 is an enlarged side view of a probe of a friction stir welding apparatus for lap joints according to a second embodiment of the present invention, while Figure 6 yes Figure 4 The shown friction stir welding setup for lap joints is viewed from below. The same reference numerals are assigned to the same elements in this embodiment as those in the above-mentioned embodiment, and description thereof will not be repeated.

[0073] In the second embodiment, as Figure 4 and 5 As shown, three channel-shaped grooves 10 are provided on the peripheral surface of the probe 5 so as to extend from the tip 5 a of the probe 5 to the shoulder 6 along the central axis C of the prob...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An object of the present invention is to provide a friction stir welding apparatus for overlapped joints capable of preventing a reduction in the strength of a joint in members to be joined by suppressing the upward curling of an oxide film. In the present invention, in a friction stir welding apparatus for overlapped joints 1 provided with a rotor 4 having a shoulder 6 and a probe 5 that is provided so as to protrude from the shoulder 6 of the rotor 4 and also so as to be disposed concentrically with the center axis C of the rotor, a helical groove 7 is formed in the peripheral surface of the probe 5, from the tip 5a of the probe 5 toward the shoulder 6, and the depth of the groove 7 is formed so as to gradually decrease from the tip 5a of the probe 5 toward the shoulder 6.

Description

technical field [0001] The present invention relates to a friction stir welding apparatus for lap joints, and more particularly, to a friction stir welding apparatus for lap joining two metal members to be joined. Background technique [0002] In the past, various friction stir welding apparatuses for lap joints have been proposed as apparatuses for lapping and joining two members to be joined (for example, refer to Patent Document 1 and Patent Document 2). [0003] Figure 8 An example of a conventional friction stir welding apparatus for lap joints is shown. Such as Figure 8 As shown, a friction stir welding apparatus 21 for a lap joint joins a pair of overlapping components to be welded 22,23. The device 21 comprises a rotor 24 having a shoulder 25 ; and a cylindrical probe 26 arranged to protrude from the shoulder 25 . The probe 26 is formed to have a smaller diameter than the rotor 24 and is arranged concentrically with the central axis C of the rotor 24 . [0004] ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12
CPCB23K20/1265B23K20/1255
Inventor 加藤庆训
Owner 三菱重工工程株式会社