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

Rotating tool for welding inner corner and inner corner welding method using same

A technology of rotating tools and joining methods, which is applied in the direction of manufacturing tools, welding equipment, metal processing equipment, etc., can solve the problems of increasing equipment costs, and achieve the effect of reducing equipment costs

Active Publication Date: 2012-07-11
NIPPON LIGHT METAL CO LTD
View PDF7 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is a case where the entire base block needs to be replaced even if only the above-mentioned parts are worn out, there is a problem that the equipment cost increases

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
  • Rotating tool for welding inner corner and inner corner welding method using same
  • Rotating tool for welding inner corner and inner corner welding method using same
  • Rotating tool for welding inner corner and inner corner welding method using same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0036] Embodiments of the present invention will be described in detail with reference to the drawings. Follow up, down, left, right, back and forth in the instructions figure 1 arrows. Such as figure 1 As shown, the rotary tool 1 for inner corner joining according to this embodiment has: a base block 2 ; and a stirring pin 3 penetrating through the base block 2 .

[0037] The base block 2 is a member that supports the stirring pin 3 and is in contact with a pair of metal members to be joined. The base block 2 includes: a main body 4 ; and a shoulder 5 detachably formed at the front end (lower side) of the main body 4 .

[0038] Such as figure 1 and figure 2 As shown, the appearance of the main body portion 4 is roughly trapezoidal columnar, and is formed in such a way that the width becomes narrower as it goes downward. The main body portion 4 is a member that abuts on a pair of metal members to be joined later, and holds the stirring pin 3 rotatably. In the present e...

no. 2 approach

[0080] Next, a second embodiment of the present invention will be described. Such as Figure 7 As shown, the rotary tool for inner corner joining of the second embodiment differs from the first embodiment in that the notch 61 is formed on the facing surface 14 of the main body 4 . Since the structure other than the main body part 4 (base block 2) is substantially the same as that of the first embodiment, redundant description will be omitted.

[0081] In the lower end of the main body 4 , inclined notches 61 , 61 are formed from the facing surface 14 to the front side 15 and the rear side 16 , respectively. The notch portion 61 is inclined so as to be away from the inner corner at a predetermined angle with the facing surface 14 as a base end. By providing the notch portion 61 in the main body portion 4, the base block 2 can be prevented from being caught in the inner corner portion Z during friction stir welding, and thus can move smoothly. Such as Figure 7 As shown, in ...

other Embodiment approach

[0094] Such as Figure 9 As shown, in another embodiment of the inner corner joining method, after the friction stir welding step of the aforementioned inner corner joining method is completed, the plasticized region W is welded to perform a repairing step. In the repair process, the surface of the plasticized region W is covered with weld metal F after overlay welding is performed. In other words, the waist height of the weld is formed by filleting the inner corner Z. Thereby, even if the surface of the plasticized region W is uneven, it can be made flat by friction stir welding.

[0095] (Symbol Description)

[0096] 1 Rotary tool for internal corner joints

[0097] 2 base blocks

[0098] 3 stirring pins

[0099] 4 main body

[0100] 5 shoulders

[0101] 12 inclined surface of main body

[0102] 13 Inclined surface of the main body

[0103] 14 facing

[0104] 17 cooling holes

[0105] 21 main body hollow part

[0106] 22 main body cylindrical hole

[0107] 23 ma...

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

Disclosed is a rotating tool for welding an inner corner excellent in economic efficiency and an inner corner welding method using the rotating tool for welding the inner corner. The rotating tool (1) for welding the inner corner which performs friction stir welding of the inner corner section generated by causing a pair of metal members to butt against each other is characterized in that the rotating tool (1) comprises a stirring pin (3) inserted into the inner corner section and a base block (2) which supports the stirring pin (3) and is caused to butt against the metal members respectively, that the base block (2) comprises a body (4) tapered in width toward the tip and a shoulder (5) formed at the tip of the body (4) attachably and detachably, and that the stirring pin (3) penetrates the body (4) and the shoulder (5).

Description

technical field [0001] The present invention relates to a rotary tool for inner corner joining for performing friction stir welding on an inner corner formed by butting a pair of metal members, and an inner corner joining method using the same. Background technique [0002] For example, Patent Document 1 discloses a technique of performing friction stir welding on inner corners of a pair of vertically butted metal members. The rotary tool for inner corner joint in this technique has a base block in the shape of a triangular prism and a stirring pin (pin) penetrating the base block. In this technique, friction stir welding is performed by bringing the inclined surfaces of the base blocks into contact with a pair of metal members, and rotating a stirring pin at a high speed while pushing it into the inner corner. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent No. 4240579 Contents of the invention [0006] The technical...

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 Applications(China)
IPC IPC(8): B23K20/12B23K20/24B23K28/02
CPCB23K20/1265B23K20/12B23K20/24B23K28/02
Inventor 堀久司濑尾伸城
Owner NIPPON LIGHT METAL CO LTD