Title:
FRICTION STIR SPOT WELDING DEVICE AND FRICTION STIR SPOT WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/009928
Kind Code:
A1
Abstract:
A friction stir spot welding device according to the present invention is configured so as to be provided with: a pin member (11); a shoulder member (12); a rotary driving device (57); a tool driving device (53); and a control unit (51) for executing (A) driving of the rotary driving device (57) and the tool driving device (53) such that an object (60) to be welded is pressed with a first pressing force in a state in which the pin member (11) and the shoulder member (12) are rotated at a first rotation speed and, after (A) has been executed, (B) driving of the rotary driving device (57) and the tool driving device (53) such that the distal end of the shoulder member (12) is press-fitted into a first position while the shoulder member (12) is rotating. The first position is a position at no less than 46% of the thickness of the object (60) to be welded from the surface (60c) of the object (60) to be welded, and the press-fitting speed of the shoulder member (12) until reaching the first position is a constant speed.
Inventors:
KONNO YUTARO
MIYAKE MASAHIRO
MIYAKE MASAHIRO
Application Number:
PCT/JP2021/025648
Publication Date:
January 13, 2022
Filing Date:
July 07, 2021
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
B23K20/12
Domestic Patent References:
| WO2019049814A1 | 2019-03-14 |
Foreign References:
| JP2015180513A | 2015-10-15 | |||
| JP2012196682A | 2012-10-18 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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