Title:
WELD PART DETERMINATION METHOD AND WELD MATERIAL MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/056341
Kind Code:
A1
Abstract:
In the present invention, a weld part determination method includes the following: an incidence step (S2) in which ultrasonic waves (US) from an insertion side and the side opposite thereto of a tool (1) are caused to be incident on a weld part (J) when a workpiece (W) formed by stacking plate members (Wa) is welded by the tool (1) that has a probe (2) and a shoulder (3) which supports the probe (2) and that is for friction stir welding; an image acquisition step (S3) for obtaining an ultrasonic wave transmission image of the weld part (J) using the ultrasonic waves (US); and a determination step (S4) for determining that the weld part (J) has been welded if the weld part (J) width-dimensions obtained from the ultrasonic wave transmission image are equivalent to at least the outer diameter d of the probe (2) and if no defect (JD) of a prescribed size or greater is found in a range equivalent to the outer diameter D of the shoulder (3) or less in the ultrasonic wave transmission image.
Inventors:
KATO YOSHINORI (JP)
YAMASU KAZUSHIGE (JP)
YAMASU KAZUSHIGE (JP)
Application Number:
PCT/JP2015/075591
Publication Date:
April 14, 2016
Filing Date:
September 09, 2015
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
G01N29/06; B23K20/12; B23K31/00; G01N29/44
Domestic Patent References:
| WO2007116629A1 | 2007-10-18 |
Foreign References:
| JPH06265529A | 1994-09-22 | |||
| JP2013047646A | 2013-03-07 | |||
| JP2005315582A | 2005-11-10 | |||
| US20120310551A1 | 2012-12-06 |
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
Woods Ryuichiro (JP)
Woods Ryuichiro (JP)
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