EP1702498A1 - Verfahren zur erwärmung von bauteilen - Google Patents
Verfahren zur erwärmung von bauteilenInfo
- Publication number
- EP1702498A1 EP1702498A1 EP04802922A EP04802922A EP1702498A1 EP 1702498 A1 EP1702498 A1 EP 1702498A1 EP 04802922 A EP04802922 A EP 04802922A EP 04802922 A EP04802922 A EP 04802922A EP 1702498 A1 EP1702498 A1 EP 1702498A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- processing area
- energy
- static
- heating
- laser source
- 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
Links
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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0033—Heating devices using lamps
- H05B3/0038—Heating devices using lamps for industrial applications
-
- 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
- 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
- C21D2261/00—Machining or cutting being involved
Definitions
- the invention relates to a method for heating components before and / or during and / or after further processing of the same.
- Components such as turbine blades of gas turbines, have to be heated during production, maintenance or repair thereof in order to carry out a wide variety of machining processes. This warming is also called preheating. It is also common to heat gas turbine components after a machining process in the sense of a heat treatment.
- so-called surfacing is used in the maintenance of turbine blades.
- preheating of a processing area or welding area of the turbine blades to be welded to a desired process temperature is required.
- Reliable build-up welding can only be carried out if the turbine blade to be welded has been heated to the process temperature at least in the processing area and is kept at the desired process temperature during build-up welding.
- inductive systems are used for heating or preheating components.
- Such inductive systems can be, for example, coils that heat the component based on inductive energy input.
- the heating or preheating of components by means of inductive systems has the disadvantage that high temperature tolerances of up to 50 ° C. can occur on the component to be heated during the heating or preheating. Such an inaccurate temperature distribution on the component to be heated is disadvantageous.
- inductive systems consume a lot of energy.
- Another disadvantage of inductive systems is that, when heated or preheated, higher temperatures can occur inside the component than on the surface of the component. This can damage the component. Proceeding from this, the present invention is based on the problem of creating a novel method for heating components.
- the processing area is irradiated to heat a plurality of laser sources, each laser source directing an energy beam onto the processing area such that each laser source generates an energy spot on the processing area, which together heat the processing area, and each of the laser sources has a static or quasi-static energy spot generated in the processing area such that the position of the respective energy spot on the processing area is static or quasi-static.
- a temperature measuring device is assigned to each laser source, which measures the heating of the processing area caused by the respective laser source or the energy spot of the respective laser source and compares it with a corresponding target temperature value, the radiation power for each of the laser sources depending on this of the respective energy beam is determined.
- Each of the laser sources preferably generates a quasi-static energy spot on the processing area in such a way that the position of the respective energy spot on the processing area changes at most between the respectively adjacent energy spots, so as to heat the transition area between two adjacent energy spots.
- Figure 1 shows a highly schematic arrangement with a component to be heated in cross section to illustrate a first embodiment of the method according to the invention.
- 2 shows a highly schematic arrangement with the component to be heated in a side view to further clarify the first embodiment of the method according to the invention;
- FIG. 3 shows a highly schematic arrangement with a component to be heated in cross section to illustrate a second embodiment of the method according to the invention.
- FIG. 1 shows a highly schematized cross section of a turbine blade 10 of a high-pressure turbine of an aircraft engine, namely through an airfoil 11 of the turbine blade 10.
- FIG. 2 shows the turbine blade 10 in a side view, with a blade root adjoining the airfoil 11 with the reference number 12 is marked. It is within the scope of the present invention to heat the turbine blade 10 of the high-pressure turbine before and / or during and / or after further processing thereof, namely on a processing area 13 of the blade blade 11 shown in FIG. 2.
- the turbine blade 10 for heating the processing area 13 in the sense of FIGS. 1 and 2 is irradiated from one side by a plurality of laser sources, each of the laser sources (not shown) emitting an energy beam! 14 aimed at the machining area 13 of the turbine blade 10. 1 shows a total of seven such energy beams 14.
- the energy beams 14 each generate an energy spot 15 on the turbine blade 10, namely in the processing area 13 thereof.
- the energy spots 15 together heat the processing area 13 of the turbine blade 10.
- the energy spots 15 are point-shaped or circular.
- the laser sources not shown, generate static or quasi-static energy spots 15 in the processing area 13 of the turbine blade 10.
- a static energy spot is to be understood to mean that the position of the respective energy spot in the processing area 13 is static, that is to say does not change. In the case of a quasi-static energy spot, however, a slight movement of the same is possible.
- the laser source generates static energy spots, i.e. that the position of the respective energy spots 15 in the processing area 13 does not change. If the distance between such static energy spots is chosen small enough, homogeneous heating of the entire processing area 13 can be achieved.
- the laser sources generate quasi-static energy spots 15 in the processing area 13.
- a quasi-static energy spot 15 a slight movement of the same within the processing area 13 is permissible, with one position of an energy spot 15 changing at most between the immediately adjacent energy spots 15.
- an even more homogeneous heating of the processing area 13 can be achieved, namely preferably in the transition area 18 between adjacent energy spots 15.
- Each laser device is assigned a temperature measuring device, not shown.
- Each of the temperature measuring devices measures or detects the heating of the processing area 13 of the turbine blades 10 caused by the respective laser source or the respective energy spot 15.
- the actual temperature values determined by each of the temperature measuring devices are now combined with a corresponding one in a control device (also not shown) Temperature setpoints compared.
- Each laser device or each energy spot generated by the respective laser device is accordingly assigned a separate temperature setpoint.
- the radiation power of the respective energy beam 14 and thus the power of the respective energy spot 15 are individually adapted for each laser device. In this case, a predefined temperature profile can be set exactly in the processing area 13.
- the changing cross-section of the turbine blade 10 along the processing region 13 can be taken into account in this way.
- 1 shows that the cross-sectional profile of the turbine blade 10 changes significantly between two edges 16 and 17.
- the radiation power can be easily and safely adapted to the cross-section of the turbine blade 10 that changes over the machining region 13 with the present invention.
- the processing region 13 of the turbine blade 10 is heated from one side by means of laser sources (not shown). In contrast to this, it is possible to heat the processing area 13 from two sides, as shown in the exemplary embodiment in FIG. 3. In the exemplary embodiment in FIG. 3, energy beams 14 are directed from both sides of the turbine blade 10 onto the processing region 13 thereof. This can further improve the heating quality.
- diode lasers are preferably used as laser sources.
- the use of diode lasers which have a linear power output with linear control is particularly preferred.
- Diode lasers enable radiation energy with a narrowly limited " specific wavelength to be directed onto the turbine blades 10 or the processing area 13 to be heated.
- the defined wavelength of the diode lasers enables good and defined limitation of the energy spread and precise heating of the turbine blade 10 or the processing area 13.
- other laser sources can also be used for heating, for example C0 2 lasers, Nd lasers or YAG lasers.
- the heating and measurement of the heating on the turbine blade 10 is carried out without contact.
- pyrometers are used for non-contact temperature measurement for use.
- each laser source is then assigned a pyrometer in order to record the heating caused by the corresponding laser source.
- the invention is preferably used in the heating of turbine blades 10 in connection with a repair or repair thereof. Machining that requires the turbine blade to heat up is, for example, so-called surfacing.
- the use of the method according to the invention is not limited to repair work on turbine blades. Rather, it can also be used with other components of a gas turbine, for example when repairing a housing.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004001276A DE102004001276A1 (de) | 2004-01-08 | 2004-01-08 | Verfahren zur Erwärmung von Bauteilen |
PCT/DE2004/002717 WO2005067350A1 (de) | 2004-01-08 | 2004-12-11 | Verfahren zur erwärmung von bauteilen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1702498A1 true EP1702498A1 (de) | 2006-09-20 |
EP1702498B1 EP1702498B1 (de) | 2013-07-31 |
Family
ID=34716358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04802922.7A Not-in-force EP1702498B1 (de) | 2004-01-08 | 2004-12-11 | Verfahren zur erwärmung von bauteilen |
Country Status (5)
Country | Link |
---|---|
US (1) | US8124912B2 (de) |
EP (1) | EP1702498B1 (de) |
JP (1) | JP4542551B2 (de) |
DE (1) | DE102004001276A1 (de) |
WO (1) | WO2005067350A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021255365A1 (fr) * | 2020-06-18 | 2021-12-23 | Safran | Chauffage laser pour la fabrication ou la reparation d'aube de turbine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9289854B2 (en) * | 2012-09-12 | 2016-03-22 | Siemens Energy, Inc. | Automated superalloy laser cladding with 3D imaging weld path control |
CN105579185B (zh) * | 2013-09-24 | 2020-11-17 | Ipg光子公司 | 能够抖动的激光加工系统 |
Family Cites Families (32)
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IT1106970B (it) * | 1978-01-18 | 1985-11-18 | Istituto Per Le Ricerche Di Te | Procedimento per la lavorazione ad asportazione di truciolo con l'impiego del raggio laser ed apparecchio per l'esecuzione del procedimento |
JPS57185918A (en) * | 1981-05-06 | 1982-11-16 | Hitachi Ltd | Method and apparatus for heating metal by laser irradiation |
JPS58221222A (ja) * | 1982-06-16 | 1983-12-22 | Sumitomo Metal Ind Ltd | 耐食性鉄鋼の製造方法 |
JPS60258407A (ja) * | 1984-05-22 | 1985-12-20 | Honda Motor Co Ltd | 焼入れ方法 |
SU1576237A1 (ru) * | 1988-01-18 | 1990-07-07 | Мгту Им.Н.Э.Баумана | Способ лазерно-механической обработки |
US4963714A (en) * | 1988-10-24 | 1990-10-16 | Raytheon Company | Diode laser soldering system |
US5073212A (en) * | 1989-12-29 | 1991-12-17 | Westinghouse Electric Corp. | Method of surface hardening of turbine blades and the like with high energy thermal pulses, and resulting product |
JPH058062A (ja) * | 1991-07-03 | 1993-01-19 | Toshiba Corp | レーザ加工装置 |
DE4234342C2 (de) * | 1992-10-12 | 1998-05-14 | Fraunhofer Ges Forschung | Verfahren zur Materialbearbeitung mit Laserstrahlung |
US5766670A (en) * | 1993-11-17 | 1998-06-16 | Ibm | Via fill compositions for direct attach of devices and methods for applying same |
US5705788A (en) * | 1993-05-19 | 1998-01-06 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Process for treatment of materials with diode radiation |
JPH07311093A (ja) * | 1994-05-17 | 1995-11-28 | Hitachi Ltd | 温度測定装置 |
JP3256090B2 (ja) * | 1994-08-11 | 2002-02-12 | 松下電器産業株式会社 | レーザ加熱ツール、レーザ加熱装置および方法 |
DE4429913C1 (de) * | 1994-08-23 | 1996-03-21 | Fraunhofer Ges Forschung | Vorrichtung und Verfahren zum Plattieren |
DE19514285C1 (de) * | 1995-04-24 | 1996-06-20 | Fraunhofer Ges Forschung | Vorrichtung zum Umformen von Werkstücken mit Laserdiodenstrahlung |
FR2737814B1 (fr) * | 1995-08-11 | 1997-09-12 | Soc D Production Et De Rech Ap | Procede et dispositif de commande d'une source laser a plusieurs modules laser pour optimiser le traitement de surface par laser |
DE19613183C1 (de) * | 1996-04-02 | 1997-07-10 | Daimler Benz Ag | Verfahren und Vorrichtung zum Feindrehen eines Werkstückes aus einem härtbaren Stahl mittels Drehmeißel |
JPH09302410A (ja) * | 1996-05-13 | 1997-11-25 | Toshiba Corp | レーザ焼入れ装置 |
DE19720652A1 (de) * | 1996-05-17 | 1997-11-20 | Siemens Ag | Beheizungsvorrichtung und Verfahren zur Erwärmung eines Bauteils |
DE19642980C1 (de) * | 1996-10-18 | 1998-08-13 | Mtu Muenchen Gmbh | Verfahren zur Instandsetzung verschlissener Schaufelspitzen von Verdichter- und Turbinenschaufel |
DE59609070D1 (de) * | 1996-10-20 | 2002-05-16 | Inpro Innovations Gmbh | Verfahren und Anordnung zur temperaturgeregelten Oberflächenbehandlung, insbesondere zum Härten von Werkstückoberflächen mittels Laserstrahlung |
US5886878A (en) * | 1997-01-21 | 1999-03-23 | Dell Usa, L.P. | Printed circuit board manufacturing method for through hole components with a metal case |
WO2000011921A1 (de) * | 1998-08-25 | 2000-03-02 | Pac Tech - Packaging Technologies Gmbh | Verfahren und vorrichtung zum plazieren und umschmelzen von lotmaterialformstücken |
CA2284759C (en) * | 1998-10-05 | 2006-11-28 | Mahmud U. Islam | Process for manufacturing or repairing turbine engine or compressor components |
DE10030776C2 (de) * | 2000-06-23 | 2002-06-20 | Mtu Aero Engines Gmbh | Verfahren zur Instandsetzung von metallischen Bauteilen insbesondere für Gasturbinen |
WO2002009904A1 (en) * | 2000-07-31 | 2002-02-07 | Toyota Jidosha Kabushiki Kaisha | Laser beam machining method |
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-
2004
- 2004-01-08 DE DE102004001276A patent/DE102004001276A1/de not_active Ceased
- 2004-12-11 US US10/585,435 patent/US8124912B2/en not_active Expired - Fee Related
- 2004-12-11 WO PCT/DE2004/002717 patent/WO2005067350A1/de active Application Filing
- 2004-12-11 EP EP04802922.7A patent/EP1702498B1/de not_active Not-in-force
- 2004-12-11 JP JP2006548095A patent/JP4542551B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO2005067350A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021255365A1 (fr) * | 2020-06-18 | 2021-12-23 | Safran | Chauffage laser pour la fabrication ou la reparation d'aube de turbine |
FR3111577A1 (fr) * | 2020-06-18 | 2021-12-24 | Safran | Chauffage laser pour la fabrication ou la reparation d’aube de turbine |
Also Published As
Publication number | Publication date |
---|---|
JP4542551B2 (ja) | 2010-09-15 |
WO2005067350A1 (de) | 2005-07-21 |
DE102004001276A1 (de) | 2005-08-04 |
EP1702498B1 (de) | 2013-07-31 |
US8124912B2 (en) | 2012-02-28 |
JP2007523285A (ja) | 2007-08-16 |
US20090107968A1 (en) | 2009-04-30 |
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