COOLING HOLE RE-MACHINING METHOD OF ENGINE PARTS, AND COOLING HOLE RE-MACHINING DEVICE TO BE USED IN THE METHOD - Ishikawajima Harima Heavy Industries Co., Ltd.

Title:

COOLING HOLE RE-MACHINING METHOD OF ENGINE PARTS, AND COOLING HOLE RE-MACHINING DEVICE TO BE USED IN THE METHOD

Document Type and Number:

Japanese Patent JP3657331

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To re-machine cooling holes with excellent workability and accuracy without deteriorating the adhesivity of a coating layer in the vicinity of an opening part of the cooling holes.
SOLUTION: After the heat resistant coating is executed to an engine parts (turbine blade 1) in which a large number of cooling holes 2 are formed, an opening edge part of the cooling holes is re-machined to the prescribed dimension, the fluid of very high pressure flow out from a cooling fluid feed passage 3 which is provided in the engine parts (turbine blade 1) and communicated with the cooling holes 2 outward of the cooling holes 2 to remove the coating material entered into the opening edge part.

Inventors:

Akiki Masaki
Takeru Sato
Kenichi Shinohara
Kenji Nishikori
Yoshio Minami

Application Number:

JP32089695A

Publication Date:

June 08, 2005

Filing Date:

December 08, 1995

Export Citation:

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Assignee:

Ishikawajima Harima Heavy Industries Co., Ltd.
Ebara Corporation

International Classes:

B23P17/00; F01D5/18; F01D25/00; F02C7/00; (IPC1-7): F01D5/18; B23P17/00; F01D25/00; F02C7/00

Domestic Patent References:

JP6226631A
JP4236757A
JP63028852A
JP62017307A
JP59136502A

Attorney, Agent or Firm:

Masatake Shiga
Takashi Watanabe
Shigeo Naruse

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