EP 1358958 B1 20050330 - A way to manufacture inserts for steam cooled hot gas path components
Title (en)
A way to manufacture inserts for steam cooled hot gas path components
Title (de)
Verfahren zur Herstellung von Einsätzen für dampfgekühlte und heissem Gasfluss ausgesetze Komponenten
Title (fr)
Procédé de fabrication d'inserts pour des composants placés dans un courant de gas chauds et refroidis par vapeur
Publication
Application
Priority
US 13113702 A 20020425
Abstract (en)
[origin: EP1358958A1] A method for forming inserts for steam cooled hot gas path components involves casting the inserts (10) and laser drilling (14) the cast inserts (10) with the ceramic casting core (12) still in place. Thereafter, the ceramic core (12) is removed through the use of a leachant. By laser drilling (14) the holes (16) with the ceramic core (12) still in place, the ceramic core (12) acts as a backer during the laser drilling (14) which results in more precise drilling of the inserts (10) and reduced processing time. <IMAGE>
IPC 1-7
IPC 8 full level
B22C 9/04 (2006.01); B22C 9/24 (2006.01); B22D 13/06 (2006.01); B22D 18/02 (2006.01); B22D 21/00 (2006.01); B22D 29/00 (2006.01); F01D 5/18 (2006.01); F01D 5/28 (2006.01); F01D 9/02 (2006.01); F02C 7/00 (2006.01)
CPC (source: EP KR US)
B22C 9/04 (2013.01 - EP US); B22D 19/00 (2013.01 - KR); B22D 29/002 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 1358958 A1 20031105; EP 1358958 B1 20050330; DE 60300436 D1 20050504; DE 60300436 T2 20060209; JP 2004003470 A 20040108; KR 20030084716 A 20031101; US 2003201087 A1 20031030
DOCDB simple family (application)
EP 03252630 A 20030425; DE 60300436 T 20030425; JP 2003119168 A 20030424; KR 20030025889 A 20030424; US 13113702 A 20020425