The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 2006
Filed:
Nov. 16, 2001
Peter Janschek, Düsseldorf, DE;
Lothar Knippschild, Essen, DE;
Karl Schreiber, Mellensee, DE;
Dan Roth-fagaraseanu, Berlin, DE;
Peter Janschek, Düsseldorf, DE;
Lothar Knippschild, Essen, DE;
Karl Schreiber, Mellensee, DE;
Dan Roth-Fagaraseanu, Berlin, DE;
Leistrits Turbinenkomponenten Remscheid GmbH, Remscheid, DE;
Rolls-Royce Deutschland LTD & Co KG, Dahlewitz, DE;
Abstract
The invention relates to a method for producing components with a high load capacity from α+γ TiAl alloys, especially for producing components for aircraft engines or stationary gas turbines. According to this method, enclosed TiAl blanks of globular structure are preformed by isothermal primary forming in the α+γ− or α phase area. The preforms are then shaped out into components with a predeterminable contour by means of at least one isothermal secondary forming process, with dynamic recrystallization in the α+γ− or α phase area. The microstructure is adjusted by solution annealing the components in the α phase area and then cooling them off rapidly.