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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.:

US 10415400 B1

PDFFull Text
Date of Patent:
Sep. 17, 2019

Filed:

May. 12, 2016

Masking method for producing a combination of blade tip hardfacing and erosion-protection coating

Applicant:

Mtu Aero Engines Ag, Munich, DE;

Inventors:

Thomas Uihlein, Dachau, DE;

Ralf Stolle, Wolfratshausen, DE;

Assignee:

MTU Aero Engines AG, Munich, DE;

Attorney:

Davidson, Davidson & Kappel, LLC

Primary Examiner:

Mary E McManmon

Assistant Examiner:

Richard K Durden

Int. Cl.
CPC ...
F01D 5/28 (2006.01); C23C 14/14 (2006.01); F01D 5/14 (2006.01); F01D 11/12 (2006.01); C23C 14/04 (2006.01); C23C 28/00 (2006.01); B23K 1/00 (2006.01); B23K 1/19 (2006.01); C23C 14/06 (2006.01); C23C 14/34 (2006.01); C23C 14/35 (2006.01); C25D 3/12 (2006.01); C25D 7/00 (2006.01); C25D 9/04 (2006.01); B23K 101/34 (2006.01); B23K 103/16 (2006.01);
U.S. Cl.
CPC ...
F01D 5/288 (2013.01); B23K 1/0018 (2013.01); B23K 1/19 (2013.01); C23C 14/042 (2013.01); C23C 14/044 (2013.01); C23C 14/0647 (2013.01); C23C 14/14 (2013.01); C23C 14/34 (2013.01); C23C 14/35 (2013.01); C23C 28/00 (2013.01); C23C 28/324 (2013.01); C23C 28/345 (2013.01); C25D 3/12 (2013.01); C25D 7/00 (2013.01); C25D 9/04 (2013.01); F01D 5/147 (2013.01); F01D 5/286 (2013.01); F01D 11/122 (2013.01); B23K 2101/34 (2018.08); B23K 2103/16 (2018.08); F05D 2220/323 (2013.01); F05D 2230/313 (2013.01); F05D 2240/307 (2013.01); F05D 2300/16 (2013.01); F05D 2300/228 (2013.01); F05D 2300/506 (2013.01); F05D 2300/611 (2013.01);
Abstract

A method for manufacturing a blade () for a turbomachine, the blade having a hardfacing on its tip () and an erosion-protection coating () at least on its airfoil () is provided. Initially, a blade tip hardfacing is applied to the blade tip and, subsequently, a mask () is positioned in the region of the blade tip hardfacing, the mask covering the blade tip hardfacing, and, subsequently, the erosion-protection coating is deposited. The mask is removed after the erosion-protection coating is completed. A blade for a turbomachine, the blade having a hardfacing on its tip () and an erosion-protection coating () at least on its airfoil () is also provided. The erosion-protection coating at least partially covers the blade tip hardfacing, and the thickness of the erosion-protection coating decreases continuously in and/or toward the region of the blade tip hardfacing.

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