Title:
FRICTION STIR WELDING TOOL, FRICTION STIR WELDING APPARATUS, AND FRICTION STIR WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/209928
Kind Code:
A1
Abstract:
This friction stir welding tool comprises: a shoulder having a shoulder surface that comes into contact with a workpiece; and a probe that juts from the shoulder and is rotatable about a first axis. In the outer circumferential surface of the probe, a spiral groove section and a bevel section are formed, alternatingly, along the circumference direction of the probe. When the rotational direction of the probe is defined as a first rotational direction, the spiral groove section has a plurality of grooves that approach the shoulder surface as the grooves head in the first rotational direction. In a portion of an end face on the tip part of the probe, a sloping surface is formed that ranges to the bevel section and that approaches the shoulder surface as the sloping surface heads in the first rotational direction.
Inventors:
MATSUBARA EIJI (JP)
MINATANI MASAYASU (JP)
NIWA KENTARO (JP)
MINATANI MASAYASU (JP)
NIWA KENTARO (JP)
Application Number:
PCT/JP2022/019219
Publication Date:
November 02, 2023
Filing Date:
April 28, 2022
Export Citation:
Assignee:
YAMAZAKI MAZAK CORP (JP)
International Classes:
B23K20/12
Foreign References:
| JP2002512130A | 2002-04-23 | |||
| US7275675B1 | 2007-10-02 | |||
| US20080251571A1 | 2008-10-16 | |||
| US20100081005A1 | 2010-04-01 | |||
| JP2017512656A | 2017-05-25 | |||
| JP2020163448A | 2020-10-08 |
Attorney, Agent or Firm:
ISHIKAWA Taro (JP)
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