Title:
TURBINE ROTOR DISC REPAIRING METHOD AND WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/110039
Kind Code:
A1
Abstract:
The present invention is a turbine rotor disc repairing method for removing a defective part generated in an outer peripheral portion of a turbine rotor disc having a blade groove in the outer peripheral portion and for reforming the blade groove, and is characterized in that when, in a longitudinal cross-section intersecting a rotating shaft 14, the area of a region occupied by a groove G10 on the disc repairing unit 10A side is represented as A10 and the area of a region occupied by a groove G11 on the edged board 11 side is represented as A11, formula (1): A10
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Inventors:
TERADA KATSUMI (JP)
Application Number:
PCT/JP2016/004951
Publication Date:
June 29, 2017
Filing Date:
November 24, 2016
Export Citation:
Assignee:
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
International Classes:
F01D25/00; B23K9/00; B23K9/04; B23K9/235; B23K31/00; F01D5/06; F02C7/00
Foreign References:
| JP2012026272A | 2012-02-09 | |||
| US20130171343A1 | 2013-07-04 | |||
| FR2980381A1 | 2013-03-29 |
Attorney, Agent or Firm:
OBA, Mitsuru et al. (JP)
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