EP1904257A1 - Procede de fabrication d'un blindage pour une aube de turbine - Google Patents

Procede de fabrication d'un blindage pour une aube de turbine

Info

Publication number
EP1904257A1
EP1904257A1 EP06761692A EP06761692A EP1904257A1 EP 1904257 A1 EP1904257 A1 EP 1904257A1 EP 06761692 A EP06761692 A EP 06761692A EP 06761692 A EP06761692 A EP 06761692A EP 1904257 A1 EP1904257 A1 EP 1904257A1
Authority
EP
European Patent Office
Prior art keywords
solder
blade
blade tip
titanium
nickel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06761692A
Other languages
German (de)
English (en)
Inventor
Bernd Daniels
Katrin Friedberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP1904257A1 publication Critical patent/EP1904257A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/288—Protective coatings for blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0018—Brazing of turbine parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/001—Turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0466—Nickel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F05C2203/0804—Non-oxide ceramics
    • F05C2203/083—Nitrides
    • F05C2203/0839—Nitrides of boron
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49336—Blade making
    • Y10T29/49337—Composite blade

Definitions

  • the invention relates to a method for producing a blade tip armor on a blade of a turbomachine, in particular on a high-pressure compressor blade of a gas turbine
  • Turbomachinery such as gas turbine engines, typically includes multiple stages of rotating blades and fixed vanes, the blades rotating together with a rotor, and the blades and vanes being enclosed by a fixed housing of the gas turbine. It is important to optimize all components and subsystems in order to increase the performance of an aircraft engine. So-called sealing systems in aircraft engines also pay off. Particularly problematic in aircraft engines is the maintenance of a minimum gap between the rotating blades and the stationary housing of a high pressure compressor and between the fixed vanes and a rotating rotor shaft of the high pressure compressor. In high-pressure compressors namely, the largest temperatures and temperature gradients occur, which makes the gap difficult. This is partly due to the fact that in compressor blades and Verêtrleitschaufein on deck bands, such as those used in turbines, is omitted.
  • the vanes and blades in the compressor do not have a shroud. Therefore, ends or tips of the rotating blades are exposed to so-called rubbing into the fixed housing direct frictional contact with the housing.
  • the free ends or tips of the vanes are exposed to direct frictional contact with the rotor shaft.
  • Such a scratching of the blade tips is caused by setting a minimum radial gap by manufacturing tolerances.
  • an undesirable Spaltverlochung can be adjusted over the entire circumference of the housing and rotor.
  • a blade tip armor which is formed from hard material particles, is soldered onto the blade tip to be armored. From DE 44 39 950 C2 a method for producing a blade tip armor on a blade of a titanium-based alloy is known, wherein a solder is applied in layers on the blade of the titanium-based alloy by the elementary components of the solder, which one adapted to the titanium-based alloy of the blade Composition, staggered in layers applied to the blade tip.
  • Hard material particles are applied to the blade coated with the solder, the solder components of the solder then being melted to at least partially envelop the hard material particles in a matrix.
  • the method known from DE 44 39 950 C2 for producing a blade tip armor is only suitable for use with blades made of a titanium-based alloy. Since high-pressure compressor blades are usually made of a nickel-based material or a nickel-base alloy, the method according to DE 44 39 950 C2 is not suitable for producing corresponding blade tip armor on blades of a high-pressure compressor of a gas turbine.
  • the present invention is based on the problem to provide a novel method for producing a blade tip armor on a blade of a turbomachine.
  • the method comprises at least the following steps: a) provision of a blade made of a nickel-based material; b) applying a solder to a blade tip of the blade, the solder being a nickel-based solder; c) applying hard particles of cubic boron nitride to the solder, wherein the hard particles of cubic boron nitride are coated with titanium or a titanium base material; d) melting the solder under vacuum to a matrix at least partially surrounding the hard particles; e) Fixing the blade tip armor by cooling.
  • blade tip armor made of hard material particles can be applied safely and effectively even on blades made from a nickel-based material or from a nickel-based alloy.
  • a solder namely a nickel-based solder
  • a solder is first applied to a blade of a nickel-based material in the area of the blade tip.
  • cubic boron nitride hard material particles coated with titanium or a titanium base material are applied to the solder.
  • the titanium forms a relatively thin titanium nitride layer around the hard particles with the cubic boron nitride, thereby providing good wetting with the nickel base solder is guaranteed.
  • a blade tip armor on a blade made of a nickel base material first apply a nickel-based solder to the blade tip of the same, with particles of cubic boron nitride coated with titanium or a titanium base material then being applied to the nickel base solder as hard material particles subsequent melting of the solder under vacuum results in a stable connection of the hard material particles with the blade tip of the blade.
  • Fig. 1 is a schematic view of a blade with a blade tip armor.
  • FIG. 1 shows a schematic representation of a rotor blade of a high-pressure compressor of a gas turbine flight engine.
  • Such high-pressure compressor rotor blades consist of a nickel-based material or a nickel-based alloy.
  • the rotor blade 10 comprises an airfoil 11 and a blade root 12. Em radially outer end of the blade 11 forms a so-called blade tip 13.
  • To wear protection of the blade tip 13 when so called rubbing the same in a fixed housing carries the same a blade tip armor 14 of hard material particles or abrasive particles.
  • the present invention now relates to a novel method for producing such a blade tip armor 14 on a blade made of a nickel-based material.
  • a blade 10 made of a nickel-based material or a nickel-based alloy is first provided.
  • a nickel-based solder is applied in the region of the blade tip 13 of the blade 11.
  • the nickel base solder is applied to the blade tip 13 in the form of a solder foil made of a homogeneous solder material, namely preferably by spot welding.
  • hard material particles are applied to the solder foil, namely hard particles of cubic boron nitride, which are coated with titanium or a titanium base material are coated.
  • the coating of the hard material particles of cubic boron nitride with titanium or the titanium base material is preferably carried out with the aid of a PVD process.
  • a nickel-based solder is preferably applied in the form of a homogeneous solder foil on a blade from a nickel-base material It is also important that with titanium or a titanium base material coated hard material particles of cubic boron nitride the solder will be applied.
  • the titanium of the coated hard material particles forms with the cubic boron nitride a relatively thin titanium nitride coating around the hard material particles, thereby ensuring good wetting with the nickel-based solder.
  • a good connection of the hard material particles of cubic boron nitride with the nickel-based solder and thus ensured with the blade tip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Procédé de fabrication d'un blindage (14) sur une aube (10) de turbomachine, en particulier sur une aube mobile de compresseur à haute pression d'une turbine à gaz. Ledit procédé consiste (a) à préparer une aube (10) constituée d'un matériau à base de nickel, (b) à appliquer un métal d'apport sur une pointe (13) de l'aube (10), le métal d'apport étant un métal d'apport à base de nickel, (c) à appliquer des particules de matière dure en nitrure de bore cubique sur le métal d'apport, les particules de matière dure en nitrure de bore cubique étant recouvertes de titane ou d'un matériau à base de titane, (d) à faire fondre le métal d'apport sous vide pour obtenir une matrice entourant au moins partiellement les particules de matière dure et (e) à fixer ce blindage (14) sur la pointe de l'aube par refroidissement.
EP06761692A 2005-07-01 2006-06-23 Procede de fabrication d'un blindage pour une aube de turbine Withdrawn EP1904257A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005030848A DE102005030848A1 (de) 2005-07-01 2005-07-01 Verfahren zum Herstellen einer Schaufelspitzenpanzerung
PCT/DE2006/001071 WO2007003160A1 (fr) 2005-07-01 2006-06-23 Procede de fabrication d'un blindage pour une aube de turbine

Publications (1)

Publication Number Publication Date
EP1904257A1 true EP1904257A1 (fr) 2008-04-02

Family

ID=37057280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06761692A Withdrawn EP1904257A1 (fr) 2005-07-01 2006-06-23 Procede de fabrication d'un blindage pour une aube de turbine

Country Status (5)

Country Link
US (1) US20080263865A1 (fr)
EP (1) EP1904257A1 (fr)
CA (1) CA2613965A1 (fr)
DE (1) DE102005030848A1 (fr)
WO (1) WO2007003160A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090068446A1 (en) * 2007-04-30 2009-03-12 United Technologies Corporation Layered structures with integral brazing materials
DE102009008887A1 (de) 2009-02-14 2010-08-19 Mtu Aero Engines Gmbh Verfahren zum Herstellen einer Schaufelpanzerung auf einer Schaufel für eine Turbomaschine
EP2241761A1 (fr) * 2009-04-09 2010-10-20 Alstom Technology Ltd Lame pour compresseur axial et son procédé de fabrication
DE102009031313B4 (de) * 2009-06-30 2018-07-05 MTU Aero Engines AG Beschichtung und Verfahren zum Beschichten eines Bauteils
US8790078B2 (en) * 2010-10-25 2014-07-29 United Technologies Corporation Abrasive rotor shaft ceramic coating
DE102011087158A1 (de) * 2011-11-25 2013-05-29 Mtu Aero Engines Gmbh Verfahren zur Panzerung der Z-Notch von TiAl-Schaufeln
US8960525B2 (en) * 2013-01-31 2015-02-24 General Electric Company Brazing process and plate assembly
US10018056B2 (en) * 2014-07-02 2018-07-10 United Technologies Corporation Abrasive coating and manufacture and use methods
US10012095B2 (en) * 2014-07-02 2018-07-03 United Technologies Corporation Abrasive coating and manufacture and use methods
US10786875B2 (en) 2014-07-02 2020-09-29 Raytheon Technologies Corporation Abrasive preforms and manufacture and use methods
DE102019207353A1 (de) * 2019-05-20 2020-11-26 Siemens Aktiengesellschaft Ummanteltes abrasives Partikel, Beschichtungsverfahren mit demselben, Schichtsystem und Dichtungssystem
DE102019207350A1 (de) * 2019-05-20 2020-11-26 Siemens Aktiengesellschaft Schweißverfahren mit ummantelten abrasiven Teilchen, ummanteltes abrasives Teilchen, Schichtsystem und Dichtungssystem
CN110355537B (zh) * 2019-07-31 2021-01-12 德阳市德源机械制造合伙企业(有限合伙) 一种汽轮机次末级和末级动叶片的加工方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1202768A (fr) * 1981-11-05 1986-04-08 Kenneth R. Cross Methode de brasage d'un revetement abrasif en bout d'une aube de turbine
US5359770A (en) * 1992-09-08 1994-11-01 General Motors Corporation Method for bonding abrasive blade tips to the tip of a gas turbine blade
DE4439950C2 (de) * 1994-11-09 2001-03-01 Mtu Muenchen Gmbh Metallisches Bauteil mit einer Verbundbeschichtung, Verwendung, sowie Verfahren zur Herstellung von metallischen Bauteilen
US6302318B1 (en) * 1999-06-29 2001-10-16 General Electric Company Method of providing wear-resistant coatings, and related articles
US6497758B1 (en) * 2000-07-12 2002-12-24 General Electric Company Method for applying a high-temperature bond coat on a metal substrate, and related compositions and articles

Non-Patent Citations (1)

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Title
See references of WO2007003160A1 *

Also Published As

Publication number Publication date
CA2613965A1 (fr) 2007-01-11
WO2007003160A1 (fr) 2007-01-11
DE102005030848A1 (de) 2007-01-11
US20080263865A1 (en) 2008-10-30

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