Title:
MANUFACTURE OF HOLLOW BLADE FOR TURBO ENGINE
Document Type and Number:
Japanese Patent JP3305927
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a blade, capable of being manufactured simply and inexpensively and having mechanical characteristics suitable for use conditions by conducting the measurement of flattening in constituent parts of the blade and digital simulation and applying the inflation under gas pressure and superplastic forming.
SOLUTION: A first step of this manufacturing process includes the work called flattening, which means the contraction accompanying the correction of twist and warp. Each section is machied, such that the whole constituent parts 11, 12 are attached to a surface 13 of an invariable lower face. A second step includes forging of primary parts 11 to 13 constituting a blade by a die press on the press. At the next step, the primary parts 11 to 13 are assembled to obtain an assembly 14 using two centering column legs 15, 16. Then, at the step of inflation under gas pressure, superplastic forming step, and final machining step, parameters, particularly applied temperature and pressure, are determined according to the materials of the ports.
Inventors:
Mathieu Vision
Syaruru Jijan Pierre Douge
Alain Giorgiyu Henri Loriyu
Yvon Mari Joseph Ruesdon
Florence Anne Natalie Renu
Syaruru Jijan Pierre Douge
Alain Giorgiyu Henri Loriyu
Yvon Mari Joseph Ruesdon
Florence Anne Natalie Renu
Application Number:
JP23032695A
Publication Date:
July 24, 2002
Filing Date:
September 07, 1995
Export Citation:
Assignee:
Societe Nacional Deuteyudo e Do Contriyucón Do Motor Davuación, "S.N.U.U.Se.M. Ah."
International Classes:
B21D26/055; B21D53/78; B21K3/04; F01D5/18; B23P15/04; F01D5/28; (IPC1-7): F01D5/18; B23P15/04
Other References:
【文献】米国特許5285573(US,A)
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)