Title:
METHOD FOR MANUFACTURING WHEEL, ULTRASONIC FLAW INSPECTION DEVICE, AND ULTRASONIC FLAW INSPECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/171169
Kind Code:
A1
Abstract:
The present invention is provided with: a cutting step (K1) for cutting a round billet (220) as a billet having a columnar shape from a raw material billet (210), at least one bottom surface from among two bottom surfaces constituting a column in the round billet (220) being a cutting plane pertaining to cutting of the round billet (220) in the step; a first ultrasonic flaw inspection step (K2) for performing ultrasonic flaw inspection from at least one bottom surface in the round billet (220); a forging/rolling/shaft hole boring step (K4) for processing the round billet (220) into a wheel shape and manufacturing a wheel-shaped processed product (230); and a second ultrasonic flaw inspection step (K7) for performing ultrasonic flaw inspection of the wheel-shaped processed product (230).
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Inventors:
HATTORI TOMOHIRO (JP)
Application Number:
PCT/JP2020/006806
Publication Date:
August 27, 2020
Filing Date:
February 20, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
G01N29/04; G01M17/10; B21K1/28
Domestic Patent References:
| WO2016027209A1 | 2016-02-25 |
Foreign References:
| JP2003048404A | 2003-02-18 | |||
| JP2013044582A | 2013-03-04 | |||
| JP2007046913A | 2007-02-22 |
Attorney, Agent or Firm:
KOKUBUN, Takayoshi (JP)
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