Title:
METHOD FOR MANUFACTURING INSERT FOR COMPONENT OF STEAM-COOLING TYPE HIGH-TEMPERATURE GAS FLOW PASSAGE
Document Type and Number:
Japanese Patent JP2004003470
Kind Code:
A
Abstract:
To provide a method for forming an insert for a component of a steam-cooling type high-temperature gas flow passage.
This method includes a step of casting an insert (10), and a step of laser-drilling the cast insert (10) while a ceramic core (12) is still in a predetermined position. Thereafter, the ceramic core (12) is removed by using an exudate. By performing the laser-drilling (14) of a hole (16) while the ceramic core (12) is still in the predetermined position, the ceramic core (12) works as a backing supporter during the laser-drilling (14), which brings the drilling of the insert (10) with high accuracy and the shortening of the working time.
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Inventors:
DEVINE ROBERT H
PLACKO JAMES M
DOWNS JUSTIN W
SCHAEFFER JON C
PETERSON LANCE G
PLACKO JAMES M
DOWNS JUSTIN W
SCHAEFFER JON C
PETERSON LANCE G
Application Number:
JP2003119168A
Publication Date:
January 08, 2004
Filing Date:
April 24, 2003
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
B22C9/04; B22C9/24; B22D13/06; B22D18/02; B22D21/00; B22D29/00; F01D5/28; F01D9/02; F02C7/00; F01D5/18; (IPC1-7): F01D5/18; B22C9/04; B22C9/24; B22D13/06; B22D18/02; B22D21/00; B22D29/00; F01D5/28; F01D9/02; F02C7/00
Attorney, Agent or Firm:
Kenichi Matsumoto
Hirokazu Ogura
Nobukazu Ito
Hirokazu Ogura
Nobukazu Ito