EP2620516A2 - Procédé et appareil de traitement thermique d'un rotor à aubage intégral - Google Patents

Procédé et appareil de traitement thermique d'un rotor à aubage intégral Download PDF

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Publication number
EP2620516A2
EP2620516A2 EP12199843.9A EP12199843A EP2620516A2 EP 2620516 A2 EP2620516 A2 EP 2620516A2 EP 12199843 A EP12199843 A EP 12199843A EP 2620516 A2 EP2620516 A2 EP 2620516A2
Authority
EP
European Patent Office
Prior art keywords
ibr
heater
heat
blades
blade
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.)
Granted
Application number
EP12199843.9A
Other languages
German (de)
English (en)
Other versions
EP2620516A3 (fr
EP2620516B1 (fr
Inventor
Wangen Lin
James J. Moor
Thomas Demichael
Herbert A. Chin
Melissa R. Hill
Michael J. Labbe
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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
Priority claimed from US13/361,283 external-priority patent/US8437628B1/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP2620516A2 publication Critical patent/EP2620516A2/fr
Publication of EP2620516A3 publication Critical patent/EP2620516A3/fr
Application granted granted Critical
Publication of EP2620516B1 publication Critical patent/EP2620516B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
    • 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
    • F01D5/34—Rotor-blade aggregates of unitary construction, e.g. formed of sheet laminae
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2221/00—Treating localised areas of an article
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18—High-melting or refractory metals or alloys based thereon
    • 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
    • F01D5/005—Repairing methods or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/80—Repairing, retrofitting or upgrading methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/70—Treatment or modification of materials
    • F05D2300/701—Heat treatment

Definitions

  • IBR integrally bladed rotors
  • blisk bladed disks
  • Heat treatment is typically performed by exposing the entire IBR or a portion of the IBR (e.g. the weld region) to a predetermined thermal cycle.
  • the technique of heat treating the entire IBR is commonly known in the art of IBR manufacture.
  • IBRs are typically made of either titanium alloys such as Ti-6-4, Ti-6-2-4-2, Ti-6-2-4-6 alloys or nickel based alloys such as Alloy 718 alloy or IN-100.
  • the IBR is a critical rotating component within an engine, and the engineering, materials, manufacturing, and quality requirements are extremely rigorous.
  • the selected portion of the IBR receiving heat treatment must meet a prescribed thermal cycle and the remaining IBR component must not be exposed to temperatures that exceed a specific peak temperature to ensure that the material properties meet engineering requirements.
  • the selected portion of the IBR receiving localized heat treatment must be protected from oxidation due to exposure to high temperature.
  • a process for heat treating selected portions of an integrally bladed rotor (IBR) having a plurality of blades comprising: mounting an IBR on a fixture having a rotor engaging portion; mounting an IR heater on one of the IBR blades; moving the fixture having an IBR into an environmental chamber; evacuating air from the chamber and adding an inert gas; heat treating the blade having the IR heater; lifting the IR heater from the blade and indexing the IBR to position another blade in alignment with the IR heater; mounting the IR heater on the another blade and heat treating the another blade, repeating the steps including indexing and heat treating of the IBR blades until all its blades are heat treated; and removing the IBR from the chamber.
  • IBR integrally bladed rotor
  • an apparatus for heat treating selected portions of an integrally bladed rotor (IBR) having a plurality of blades comprising: a fixture for mounting an IBR having a rotor engaging portion; the fixture having an IBR being moveable into an environmental chamber; an IR heater mounted on a heater support unit adapted to moveably mounting the heater on one of the IBR blades and removing it from the blade; the chamber having a vent for evacuating air and adding an inert gas; the heater support unit being adapted to lift the IR heater from the blade and the fixture being adapted to index the IBR to position another blade on the IBR; and a control unit for controlling the heater support unit and the heater position on or off the IBR blade.
  • IBR integrally bladed rotor
  • a system for heat treating selected portions of an integrally bladed rotor (IBR) having a plurality of blades comprising: an IBR on a mounting fixture having a rotor engaging portion for mounting an IBR thereon; an environmental chamber for receiving the mounting fixture having an IBR thereon, the chamber being adapted to evacuate air from the chamber and add an inert gas; a heater support unit for attaching an IR heater on one of the IBR blades and lifting the IR heater from the blade and indexing the IBR to position another blade on the IBR; a control unit for operating the IR heater for heat treating the blade heater and operating the heater support unit to index and heat treat all of the IBR blades.
  • IBR integrally bladed rotor
  • the present disclosure concerns a process and system for using a directional (focused) infrared (IR) heater to heat treat specific areas on the blades of IBR devices using a holding fixture for mounting the IBR, an environmental chamber for performing the heat treatment, a heater support unit that positions the heater on the IBR blades, and a control unit for precisely indexing the support unit on to successive blades until all the repaired blades are heat treated.
  • IR infrared
  • This heat treatment is done using a heater that is capable of placement of infrared heat sources on the individual integral blades in an inert environment which in one form may use parabolic mirrors to focus heat only onto the desired area.
  • FIG. 1 is a block diagram showing the process of this invention.
  • FIG. 2A is a perspective view of the environmental chamber of this invention.
  • FIG. 2B is a perspective view of the mounting fixture of this invention.
  • FIG. 3 is a perspective view showing the IR heater of this invention.
  • FIG. 4 is a plan view showing the device of this invention focused on a single integrally bladed rotor.
  • FIG. 5 is a section view taken along line 4-4 of FIG. 4 .
  • the process of this invention provides for localized heat treatments for integrally bladed rotors (IBR) as shown in FIG. 1 .
  • the IBR to be treated is loaded on a holding fixture as seen in step 111.
  • the heater support unit is mounted onto the IBR holding fixture and the IR heater is lowered on to the first blade of the IBR in step 113.
  • the IBR is then placed in an environmental chamber in step 115.
  • the chamber is closed, evacuated and backfilled with an inert gas such as, for example, argon or helium in step 117.
  • the selected blade is heat treated in step 119.
  • step 121 the heater is lifted, the IBR is indexed to present the next repaired blade, the heater is lowered and that blade is heat treated. Step 121 is repeated so that all of the individual repaired blades on the IBR are heat treated. Once this is done, the chamber is opened and the IBR is removed, as noted in step 123.
  • FIG. 2A and 2B illustrate a device for carrying out the process of this invention as shown in FIG. 1 .
  • An IBR, 21, shown in FIG. 3 is placed on a mounting fixture 211 in FIG. 2B .
  • Heater 10 generally in FIG. 3 is lowered on to a first selected blade 11 by heater support unit 217 using control panel 219.
  • Loaded mounting fixture 211 is placed on tracks 213 and is moved into environmental chamber 215.
  • Tracks 213 can be configured in other manners as long as it is capable of moving mounting fixture 211 into and out of chamber 215 as needed.
  • Door 221 is closed and chamber 215 is evacuated via vent 223. Both door 221 and back wall 225 of chamber 215 have windows 227 so the operation can be observed as heater 10 is lowered on to successive blades 23 of FIG. 3 .
  • the process and system of this invention provides a means for critical hardware such as IBR units to receive the desired thermal cycle at the specific location where it is needed.
  • An indexing component of the process and system treats every blade without opening the chamber. The heat treatment takes place in a protective environment to avoid formation of undesirable constituents such as alpha case.
  • the process and system of this invention is suitable for OEM manufacture and for repair of existing IBR systems.
  • Heater 10 is described in EP12168583.8 . In addition other heaters having other designs may be used. It is necessary that the heater be able to be placed on and removed from each IBR blade as the blades are sequentially indexed. The heater must be able to heat treat the desired region of each blade without allowing undesired heat to affect the remaining portion of the blade. Following is a description of FIGS. 3-5 .
  • Device 10 is positioned proximate an integrally bladed rotor (IBR) airfoil 11 for heating a portion of the IBR airfoil 11 and thereby eliminate overall part exposure to heat.
  • Device 10 includes a pair of infrared (IR) lamp housings 13 and 15, each with an IR lamp generating IR rays that are reflected off parabolic mirrors 17 and 19, respectively, to contact IBR 11 and heat treat that blade without exposing any other pant of IBR airfoil 11 to unwanted heat.
  • IR infrared
  • FIG. 3 illustrates a complete integrally bladed rotor with rotor hub 21 supporting a plurality of other airfoils 23.
  • Device 10 is positioned on airfoil 11 and includes electrical contacts 25 connected to a power source, not shown, for actuation of IR lamps 27 that are held in place by clips 29. Rays from IR lamps 27 are focused by mirrors 17 and 19 as an elongated band of IR radiation on a specific portion of airfoil 11, in this instance the portion of airfoil 11 attached to rotor hub 21.
  • the width of the band of focused IR radiation may be any width that permits complete heat treatment of the desired portions of the component. Band widths may range from about 6 mm to about 18 mm, and may be about a 12 mm band width. Other widths may also be accommodated depending on, for example, the size of the parts, the material being heat treated.
  • Device 10 also includes tubes or passages 33, shown more clearly in Fig. 5 , that are connected to a source of water or other cooling medium, not shown, to cool portions of device 10 to prevent distortion and a resulting uneven heating.
  • Other cooling devices such as fans and refrigerants may also be used.
  • dotted lines 37 that represent the extent of unfocused IR rays from lamps 27, and dashed lines 39 represent the extent of IR rays focused by mirrors 17 and 19 onto the portion of airfoil 11 that is to be heat treated, such as to relieve stress in the metal after welding airfoil 11 to rotor hub 21.
  • the present invention was used to heat treat and stress relieve a plurality of IBR blades without adversely heating other critical areas of the IBR.
  • replacement blades have been attached to an IBR by focusing the heat only at the desired location, e.g., where the replacement blade is attached to the IBR.
  • the device of this invention is suitable for OEM manufacture and for repair of existing IBR systems.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP12199843.9A 2012-01-30 2012-12-31 Procédé et appareil de traitement thermique d'un rotor à aubage intégral Active EP2620516B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/361,283 US8437628B1 (en) 2011-07-18 2012-01-30 Method and apparatus of heat treating an integrally bladed rotor

Publications (3)

Publication Number Publication Date
EP2620516A2 true EP2620516A2 (fr) 2013-07-31
EP2620516A3 EP2620516A3 (fr) 2013-08-14
EP2620516B1 EP2620516B1 (fr) 2017-02-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12199843.9A Active EP2620516B1 (fr) 2012-01-30 2012-12-31 Procédé et appareil de traitement thermique d'un rotor à aubage intégral

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EP (1) EP2620516B1 (fr)
SG (1) SG192328A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3044341A4 (fr) * 2013-09-09 2017-04-12 Broen A/S Système et procédé permettant le recuit d'un article qui comporte des parties thermosensibles, et article recuit
EP3508609A1 (fr) * 2018-01-05 2019-07-10 United Technologies Corporation Procédé permettant d'améliorer les propriétés de fatigue et de traction dans des pièces forgées de rotor à aubage intégral
US10935037B2 (en) 2018-01-05 2021-03-02 Raytheon Technologies Corporation Tool for simultaneous local stress relief of each of a multiple of linear friction welds of a rotor forging

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1216858A2 (fr) 2000-12-19 2002-06-26 Mazda Motor Corporation Système de suspension pour véhicule à moteur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004002965A1 (de) * 2004-01-21 2005-08-11 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zur Reparatur von integral beschaufelten Rotoren
US7977611B2 (en) * 2007-07-19 2011-07-12 United Technologies Corporation Systems and methods for providing localized heat treatment of metal components

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1216858A2 (fr) 2000-12-19 2002-06-26 Mazda Motor Corporation Système de suspension pour véhicule à moteur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3044341A4 (fr) * 2013-09-09 2017-04-12 Broen A/S Système et procédé permettant le recuit d'un article qui comporte des parties thermosensibles, et article recuit
EP3508609A1 (fr) * 2018-01-05 2019-07-10 United Technologies Corporation Procédé permettant d'améliorer les propriétés de fatigue et de traction dans des pièces forgées de rotor à aubage intégral
US10633731B2 (en) 2018-01-05 2020-04-28 United Technologies Corporation Method for producing enhanced fatigue and tensile properties in integrally bladed rotor forgings
US10935037B2 (en) 2018-01-05 2021-03-02 Raytheon Technologies Corporation Tool for simultaneous local stress relief of each of a multiple of linear friction welds of a rotor forging
US11448227B2 (en) 2018-01-05 2022-09-20 Raytheon Technologies Corporation Tool for simultaneous local stress relief of each of a multiple of linear friction welds of a rotor forging

Also Published As

Publication number Publication date
SG192328A1 (en) 2013-08-30
EP2620516A3 (fr) 2013-08-14
EP2620516B1 (fr) 2017-02-08

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