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Title:
PEENING PROCESSING DEVICE, PEENING PROCESSING METHOD, AND STRUCTURE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/193944
Kind Code:
A1
Abstract:
A peening processing device 10 comprising: a supporting part 12 which is capable of moving relatively to a structure 1 in a welding direction of a welding bead 1c; peening devices 14, 16 provided at both sides in the widthwise direction of the welding bead 1c; a traveling link part which links the peening devices 14, 16 to the supporting part 12 in such a manner as to allow the peening devices 14, 16 to move in the widthwise direction with respect to the supporting part 12; and a biasing part 20 which is supported by the supporting part 12, exerts, on the peening device 16, a force directed toward one side in the widthwise direction, and exerts, on the peening device 14, a force directed toward the other side in the widthwise direction. With this configuration, it is possible to perform efficient peening processing on welded parts of a variety of shapes.

Inventors:
SHIMANUKI HIROSHI (JP)
KAYAMORI YOICHI (JP)
YONEZAWA TAKAYUKI (JP)
Application Number:
PCT/JP2021/012967
Publication Date:
September 30, 2021
Filing Date:
March 26, 2021
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B23K31/00; C21D7/06
Foreign References:
JP2014172050A2014-09-22
JP2013022604A2013-02-04
JPH10204528A1998-08-04
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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