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:
Nov. 08, 2016
Filed:
Jan. 07, 2015
Applicant:
Alstom Technology Ltd, Baden, CH;
Inventors:
Tobias Schmitt, Olten, CH;
Hans Bissig, Wohlen, CH;
Stefan Schlegel, Künten, CH;
Guenter Ambrosy, Fislisbach, CH;
Michael Seemann, Laufenburg, DE;
Hermann Emminger, Fahrwangen, CH;
Assignee:
GENERAL ELECTRIC TECHNOLOGY GMBH, Baden, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/00 (2006.01); B23P 6/00 (2006.01); F01D 5/18 (2006.01); F01D 5/20 (2006.01);
U.S. Cl.
CPC ...
F01D 5/005 (2013.01); B23P 6/007 (2013.01); F01D 5/186 (2013.01); B23K 2201/001 (2013.01); F01D 5/20 (2013.01); F05D 2230/10 (2013.01); F05D 2230/232 (2013.01); F05D 2230/234 (2013.01); F05D 2230/235 (2013.01); F05D 2230/31 (2013.01); F05D 2230/80 (2013.01); F05D 2230/90 (2013.01); F05D 2300/607 (2013.01);
Abstract
A method is provided for repairing a single crystal turbine blade, which includes an airfoil with a tip having a tip cover plate, tip cooling air holes and a tip crown. The method includes removing the tip crown by manual grinding, thereby preserving the underlying tip cover plate; preparing the tip cooling air holes by manual grinding; closing said prepared tip cooling air holes by manual welding; and building-up a new tip crown by a LMF (Laser Metal Forming) process.