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Manufacturing method of cylindrical member

A manufacturing method, a cylindrical technology, applied in the direction of manufacturing tools, metal processing equipment, welding equipment, etc., can solve the problem of insufficient metal at the joint, and achieve the effect of preventing metal insufficiency

Inactive Publication Date: 2020-10-16
NIPPON LIGHT METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Here, when the metal plates are rolled up and the end faces are butted against each other, a V-shaped gap is inevitably formed between the end faces, and therefore, there is a problem of insufficient metal at the joining portion during the friction stir process.

Method used

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  • Manufacturing method of cylindrical member
  • Manufacturing method of cylindrical member

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0049] A method of manufacturing a cylindrical member according to a first embodiment of the present invention will be described in detail with reference to the drawings. In the joining method of the present embodiment, a preparation step, a butt joint step, an auxiliary member arrangement step, a joint member arrangement step, a friction stir step, and a removal step are performed. In addition, the "front" in the following description means the surface on the opposite side to the "back".

[0050] Such as figure 1 As shown, the preparation step is a step of preparing the metal plate 1 and the back contact jig K. The metal plate 1 is a plate-like member. The material of the metal plate 1 is not particularly limited as long as it is a metal capable of friction stirring, and may be appropriately selected from, for example, aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, and magnesium alloy.

[0051] The back abutment jig K is a jig arrange...

no. 2 approach

[0065] Next, a method of manufacturing a cylindrical member according to a second embodiment of the present invention will be described. The manufacturing method of the cylindrical member of the second embodiment differs from the first embodiment mainly in the arrangement position of the auxiliary member 10 . In the method of manufacturing a cylindrical member according to the second embodiment, a preparation step, a butt joint step, an auxiliary member arrangement step, a joint member arrangement step, a friction stir step, and a removal step are performed. In the second embodiment, the description will focus on the parts different from the first embodiment.

[0066] Since the preparation process and the docking process are the same as those of the first embodiment, description thereof will be omitted. Such as Figure 8 As shown, the auxiliary member arranging step is a step of arranging the auxiliary member 10 on the cylindrical to-be-joined member 1A. In the auxiliary me...

no. 3 approach

[0076] Next, a method of manufacturing a cylindrical member according to a third embodiment of the present invention will be described in detail with reference to the drawings. In the joining method of the present embodiment, a preparation step, a butt joint step, an auxiliary member arrangement step, a joint member arrangement step, a friction stir step, and a removal step are performed.

[0077] Such as Figure 11 As shown, the preparation step is a step of preparing the metal plate 1 and the back contact jig M. As shown in FIG. The metal plate 1 is a rectangular plate-like member. The material of the metal plate 1 is not particularly limited as long as it is a metal capable of friction stirring, and may be appropriately selected from, for example, aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, and magnesium alloy.

[0078] The back abutment jig M is a jig arranged as a back abutment of the joined portion during the friction stir proce...

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Abstract

The method is characterized by including: a butting step for rolling a flat metal plate (1) into a cylindrical member to be welded (1A) and butting end faces thereof against each other, thereby forming a butt portion (J1); an auxiliary member arranging step for arranging a curved portion (K1), which is formed at a backing jig (K), on the inner circumferential surface side of the butt portion (J1) and also arranging an auxiliary member (10) on the outer circumferential surface side of the butt portion (J1); and a friction stir step for inserting a rotating stirring pin (F2) from the surface (10a) side of the auxiliary member (10) and relatively moving a rotary tool for welding (F) along the butt portion (J1), thereby friction stir welding the butt portion (J1), with only the stirring pin (F2) being in contact with the cylindrical member to be welded (1A) and the auxiliary member (10).

Description

technical field [0001] The present invention relates to a method of manufacturing a cylindrical member. Background technique [0002] For example, Patent Document 1 discloses a method of manufacturing a cylindrical member in which a flat metal plate is rolled up and friction stir welding is performed on butted portions formed by butting end faces together to manufacture a cylindrical member. In the above conventional friction stir process, the planar portion formed on the back abutting jig is arranged on the inner peripheral surface side of the mating portion, and the rotary tool rotating along the mating portion is relatively moved from the outer peripheral surface side of the mating portion. [0003] Here, when the metal plates are rolled up and the end faces are butted against each other, a V-shaped gap is inevitably formed between the end faces, and therefore there is a problem of insufficient metal at the joining portion during the friction stir process. However, by ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12
CPCB23K20/12
Inventor 堀久司濑尾伸城
Owner NIPPON LIGHT METAL CO LTD
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