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Title:
TOOL FOR MANUFACTURING CERAMIC CASTING CORES FOR TURBOMACHINE BLADE
Document Type and Number:
Japanese Patent JP2008260065
Kind Code:
A
Abstract:

To provide a tool for manufacturing a ceramic casting core for turbomachine blades.

The present invention relates to a tool for manufacturing a casting core, for a turbomachine blade with a leading edge and a trailing edge, the core 10 comprising a thick part on the leading edge side and a thin part 10A1 on the trailing edge side, comprising first and second dies (530, 540) of the core that can move in a direction (F'1 and F'2, respectively) one with respect to the other between a molding position and a demolding position, where appropriate with sub-components that can move relative to the dies, wherein the parts of the dies corresponding to the thin part of the core do not include a movable sub-component, mechanical ejectors (570) being provided on one or other of the dies, in such a way that the thin part (10A1) of the core is demolded along the main direction of opening.


Inventors:
PRIGENT SERGE
LOUESDON YVON
VERGER JEAN-LOUIS
Application Number:
JP2008102119A
Publication Date:
October 30, 2008
Filing Date:
April 10, 2008
Export Citation:
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Assignee:
SNECMA
International Classes:
B22C9/10; F01D5/18; F02C7/00
Domestic Patent References:
JPS59109304A1984-06-25
JPS59224306A1984-12-17
JP2006167805A2006-06-29
JPS5445314A1979-04-10
JP2003053480A2003-02-26
JPH02188460A1990-07-24
JPH0760974A1995-03-07
JPH0623644U1994-03-29
Attorney, Agent or Firm:
Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura