Title:
PRODUCTION OF DOUBLE WALL TURBINE COMPOSING MEMBER
Document Type and Number:
Japanese Patent JP3807521
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently produce a double wall turbine composing member of complicated shape by rolling a preform including a sacrifice material to obtain a prescribed dimension, removing the sacrifice material after welding and assembling into a desired shape and forming a cooling path.
SOLUTION: The preform of assemblies consisting of the sacrifice material of a Ni base super alloy, etc., and a Monel, etc., is hot rolled to reduce the cross section into the desired dimension. Next, the preform is ring rolled after cutting and removing an unnecessary part 54 to form a cylindrical part 50 being a combustor, a cone 52 being a transition member, etc. Next, these are welded in the axial direction and combined in the circumference. Thereafter, the sacrifice material is etched and removed and the cooling path is formed to obtain the double wall structure.
Inventors:
Anne Melinda Litter
Melvin Robert Jackson
Nessim Abuahu
Robert Patrick Campbell
Ronald Scott Bunker
Melvin Robert Jackson
Nessim Abuahu
Robert Patrick Campbell
Ronald Scott Bunker
Application Number:
JP16692697A
Publication Date:
August 09, 2006
Filing Date:
June 24, 1997
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
B21D51/12; F02C7/00; B21D53/84; B23P15/00; F01D9/02; F23R3/00; F23R3/42; B21H1/06; (IPC1-7): B21D51/12; B21D53/84; F02C7/00; F23R3/42
Domestic Patent References:
| JP6201131A | ||||
| JP8338633A |
Attorney, Agent or Firm:
Kenichi Matsumoto
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