EP1345732B1 - Verfahren zur glättung der oberfläche einer gasturbinenschaufel - Google Patents
Verfahren zur glättung der oberfläche einer gasturbinenschaufel Download PDFInfo
- Publication number
- EP1345732B1 EP1345732B1 EP01989541A EP01989541A EP1345732B1 EP 1345732 B1 EP1345732 B1 EP 1345732B1 EP 01989541 A EP01989541 A EP 01989541A EP 01989541 A EP01989541 A EP 01989541A EP 1345732 B1 EP1345732 B1 EP 1345732B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas turbine
- turbine blade
- smoothing
- abrasive medium
- abrasive
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/003—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor whereby the workpieces are mounted on a holder and are immersed in the abrasive material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
Definitions
- the invention relates to a method for smoothing the surface a gas turbine blade, in particular a gas turbine blade with a corrosion protection layer.
- DE-A-3918824 and US-A-5,105,525 show an iron sole, the one particularly scratch-resistant, good lubricious and has easy to clean surface.
- the soleplate is coated with a nickel hard alloy and in one Drag-grinding process ground and polished.
- US-A-4,321,310 is a method for producing a Coating on a gas turbine blade described.
- the Gas turbine blade has a body made of a cobalt-based or nickel base superalloy.
- a primer layer of the type MCrAlY is applied on this basic material.
- M for example denotes a combination the metals nickel and cobalt.
- Cr stands for chrome and Al for Aluminum and Y for yttrium.
- a ceramic layer of zirconium oxide is applied, The stem is grown up, with the stems directed substantially perpendicular to the surface of the body are.
- the primer layer is polished until a surface roughness of about 1 micron.
- From US-A-5,683,825 is also a method of application a thermal barrier coating on a component of a gas turbine out.
- a basic body On a basic body is by low-pressure plasma spraying applied a NiCrAlY adhesion promoter layer.
- the surface of the primer layer is polished, so that this has a surface roughness of about 2 microns having.
- On the thus-polished adhesive layer is by means of a vapor deposition process (PVD, Physical Vapor Deposition) a ceramic thermal barrier coating with yttrium-stabilized Zirconia applied.
- PVD Physical Vapor Deposition
- the thermal barrier coating this with the so-called electron beam PVD method applied.
- the thermal barrier coating can also by means Plasma spraying are applied.
- US-A-5,645,893 relates to a coated component having a Base body of a superalloy and with a Adhesive layer and a thermal barrier coating.
- the primer layer has a platinum aluminide and one on it subsequent thin oxide layer on.
- the thin oxide layer has alumina. Adjacent to this oxide layer the thermal barrier coating, which by means of the electron beam PVD method is applied. It is stabilized with yttrium Zirconia applied to the primer layer.
- the Surface of the body by means of a coarse sandblasting process cleaned. For material-removing processing of the Base body is used alumina sand.
- U.S. Patent 5,090,870 discloses a method for Surface treatment in which a component in a Grinding medium is rotated.
- the object of the invention is to provide a method for smoothing the Specify the surface of a gas turbine blade, in particular efficient and cost effective way to a sufficient smooth surface of the gas turbine blade leads.
- this object is achieved by specifying a Method for smoothing the surface of a gas turbine blade, in which the gas turbine blade with a towing device through an abrasive medium along a towing direction being towed, with the gas turbine blade is tilted periodically perpendicular to the towing direction.
- FIG. 1 shows a gas turbine blade 1 with an airfoil 3, a platform 5 and a blade foot 7.
- the Airfoil 3 has a pressure side 9 and a suction side 11 on, at an inlet edge 13 and a trailing edge 12th contiguous.
- the airfoil 3 is, as well as the Airfoil 3 facing surface of the platform 5, with a corrosion protection layer 15 is provided.
- the corrosion protection layer 15 is a class metallic alloy MCrAlY.
- On the surface 14 of the airfoil 3 open Cooling channels 17.
- the gas turbine blade 1 is a hot gas with exposed to very high temperature. Protection against corrosion and oxidation by the hot gas serves the anticorrosion layer 15.
- the corrosion protection layer 15 also has a ceramic thermal barrier coating 19 may be applied.
- the anticorrosion layer 15 also serves as a primer layer between the main body of the gas turbine blade 1 and the ceramic thermal barrier coating 19.
- the corrosion protection layer 15 are smoothed. An efficient one and cost-effective smoothing process is based on Figure 2 explained in more detail.
- the cooling medium 18 forms a protective cooling film on the surface 14.
- Figure 2 shows a grinding device 21.
- a first annular container 23 is a liquid abrasive medium 27th filled.
- second container 25 is a second liquid abrasive medium 29 filled.
- the abrasive medium 27 contains an emulsion Grinding wheels of a certain average size.
- the second abrasive medium 29 contains emulsion-like second Grinding wheels which on average are smaller than the grinding wheels of the grinding medium 27.
- a pivot arm 31 is arranged along a Pivoting direction 32 is pivotable. Along the pivoting direction 32 is the pivot arm 31 from a position above the first container 23 in a position above the second container 25 swiveling.
- a towing device 33 On the pivot arm 31 is a towing device 33 arranged.
- This towing device 33 leads on a support arm 39, a gas turbine blade 1 through the Grinding medium 27.
- a first axis 35 of the movement of the gas turbine blade 1 is doing by a rotation of the Towing device 33 defined. Through this rotation around the first axis 35, the gas turbine blade 1 along a Circular path 43 dragged through the first container 23.
- a second axis 37 is caused by a tilting movement of the support arm 41 and then with the gas turbine blade 1 perpendicular to the defined by the rotational movement about the first axis 35 Towing direction 36 defined.
- a third axis 39 for the Movement of the gas turbine blade 1 is defined by a Rotation of the support arm 41.
- the speed of the tow motion along the Towing direction 36 can adjust the amount of material removal become.
- the relative speeds of the movements about the axes 35, 37, 39 the homogeneity of the Materialabtrages on the surface 14 of the gas turbine blade 1 can be set.
- the towing device 33 After a sufficient smoothing in the grinding medium 27 is the towing device 33 with the pivot arm 31 via the pivoted second container 25.
- an analogue Grinding process although in the second grinding medium 29 a polishing process takes place, through which a particularly high Smoothing is achievable.
- At the towing device 33 can of course also a variety be arranged by gas turbine blades 1, so that a high throughput of gas turbine blades 1 can be achieved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
- FIG 1
- eine Gasturbinenschaufel und
- FIG 2
- eine Schleifvorrichtung und ein Verfahren zur Oberflächenbehandlung einer Gasturbinenschaufel.
Claims (9)
- Verfahren zur Glättung der Oberfläche (14) einer Gasturbinenschaufel (1), dadurch gekennzeichnet, daß
die Gasturbinenschaufel (1) mit einer Schleppvorrichtung (33) durch ein Schleifmedium (27) entlang einer Schlepprichtung (36) geschleppt wird, und daß die Gasturbinenschaufel (1) senkrecht zur Schlepprichtung (36) periodisch gekippt wird. - Verfahren nach Anspruch 1,
bei dem die Gasturbinenschaufel (1) eine durch thermisches Spritzen aufgebrachte äussere Korrosionsschutzschicht (15) aufweist. - Verfahren nach Anspruch 2,
bei dem die Korrosionsschutzschicht (15) aus einer Legierung der Klasse MCrAlX besteht, wobei M für ein oder mehrere Elemente der Gruppe (Eisen, Kobalt, Nickel) steht, Cr Chrom, Al Aluminium ist und X für ein oder mehrere Elemente der Gruppe (Scandium, Hafnium, Lanthan, Seltene Erden) steht. - Verfahren nach Anspruch 1,
bei dem an der Oberfläche (14) Kühlkanäle (17) für ein aus dem Inneren der Gasturbinenschaufel (1) zu führendes Kühlmedium (18) münden. - Verfahren n6ach Anspruch 1,
bei dem die Gasturbinenschaufel (1) in einer mehrachsigen Bewegung geschleppt wird. - Verfahren nach Anspruch 1,
bei dem die Gasturbinenschaufel (1) während des Schleppens rotiert wird. - Verfahren nach Anspruch 1,
bei dem die Gasturbinenschaufel (1) auf einer Kreisbahn (43) geschleppt wird. - Verfahren nach Anspruch 1,
bei dem die Oberfläche (14) vor der Glättung eine Rauhigkeit von Ra=5 bis 13 Mikrometer und nach der Glättung eine Rauhigkeit von Ra = 0,05 bis 1 Mikrometer aufweist. - Verfahren nach Anspruch 1,
bei dem nach einer ersten Glättung in dem Schleifmedium (27) eine zweite Glättung in einem zweiten Schleifmedium (29) erfolgt, wobei die durch das zweite Schleifmedium (29) erzielbare Endrauhigkeit kleiner ist als die durch das Schleifmedium (27) erzielbare Endrauhigkeit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01989541A EP1345732B1 (de) | 2000-12-27 | 2001-11-29 | Verfahren zur glättung der oberfläche einer gasturbinenschaufel |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00128574 | 2000-12-27 | ||
EP00128574A EP1219389A1 (de) | 2000-12-27 | 2000-12-27 | Verfahren zur Glättung der Oberfläche einer Gasturbinenschaufel |
PCT/EP2001/013982 WO2002051586A1 (de) | 2000-12-27 | 2001-11-29 | Verfahren zur glättung der oberfläche einer gasturbinenschaufel |
EP01989541A EP1345732B1 (de) | 2000-12-27 | 2001-11-29 | Verfahren zur glättung der oberfläche einer gasturbinenschaufel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1345732A1 EP1345732A1 (de) | 2003-09-24 |
EP1345732B1 true EP1345732B1 (de) | 2005-07-20 |
Family
ID=8170838
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00128574A Withdrawn EP1219389A1 (de) | 2000-12-27 | 2000-12-27 | Verfahren zur Glättung der Oberfläche einer Gasturbinenschaufel |
EP01989541A Expired - Lifetime EP1345732B1 (de) | 2000-12-27 | 2001-11-29 | Verfahren zur glättung der oberfläche einer gasturbinenschaufel |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00128574A Withdrawn EP1219389A1 (de) | 2000-12-27 | 2000-12-27 | Verfahren zur Glättung der Oberfläche einer Gasturbinenschaufel |
Country Status (6)
Country | Link |
---|---|
US (2) | US7014533B2 (de) |
EP (2) | EP1219389A1 (de) |
JP (1) | JP2004516159A (de) |
CN (1) | CN1481293A (de) |
DE (1) | DE50106828D1 (de) |
WO (1) | WO2002051586A1 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10221842A1 (de) | 2002-05-16 | 2003-11-27 | Roesler Oberflaechentechnik Gm | Polierverfahren |
US6925811B2 (en) * | 2002-12-31 | 2005-08-09 | General Electric Company | High temperature combustor wall for temperature reduction by optical reflection and process for manufacturing |
US7181915B2 (en) * | 2002-12-31 | 2007-02-27 | General Electric Company | High temperature centerbody for temperature reduction by optical reflection and process for manufacturing |
JP4918253B2 (ja) * | 2005-12-15 | 2012-04-18 | 三菱重工業株式会社 | 表面平滑化皮膜を有する回転機械 |
US20070238397A1 (en) * | 2006-04-11 | 2007-10-11 | Mickey Dyer | Finishing process |
SG154344A1 (en) * | 2008-01-09 | 2009-08-28 | United Technologies Corp | Airfoil mask, airfoil and mask system, and masking method for edge profile finishing |
DE102008017841A1 (de) * | 2008-04-08 | 2009-10-15 | Rösler Holding GmbH & Co. KG | Bearbeitungsverfahren |
JP5367705B2 (ja) * | 2008-06-23 | 2013-12-11 | 株式会社東芝 | 蒸気タービン及び蒸気タービン翼 |
US10179388B2 (en) * | 2009-05-12 | 2019-01-15 | Rem Technologies, Inc. | High throughput finishing of metal components |
DE102009024313A1 (de) * | 2009-06-05 | 2011-01-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zum Gleitspanen eines Werkstücks |
MX2012005656A (es) * | 2009-11-17 | 2012-06-25 | Rem Technologies | Portapieza magnetico. |
US9550272B2 (en) * | 2009-11-17 | 2017-01-24 | Rem Technologies, Inc. | Magnetic fixture |
FR2965201B1 (fr) * | 2010-09-28 | 2013-08-23 | Snecma | Procede et dispositif d'usinage du bord d'attaque d'une aube de turbomachine |
US8875870B2 (en) | 2011-03-31 | 2014-11-04 | Benetech, Inc. | Conveyor belt cleaner scraper blade and assembly |
DE102011015750A1 (de) * | 2011-03-31 | 2012-10-04 | Otec Präzisionsfinish GmbH | Verfahren und Vorrichtung zur Oberflächenbearbeitung von Werkstücken |
US20130084190A1 (en) * | 2011-09-30 | 2013-04-04 | General Electric Company | Titanium aluminide articles with improved surface finish and methods for their manufacture |
US20130273816A1 (en) * | 2012-04-13 | 2013-10-17 | Nano And Advanced Materials Institute Limited | Automatic polishing device for surface finishing of complex-curved-profile parts |
SG195417A1 (en) * | 2012-06-01 | 2013-12-30 | Pratt & Whitney Services Pte Ltd | Polishing assembly and method for polishing |
US10482186B2 (en) | 2013-03-19 | 2019-11-19 | Av&R Vision And Robotics Inc. | Method for automatically determining a finishing recipe of a manufactured component |
EP2983864B1 (de) * | 2013-04-09 | 2017-04-26 | Otec Präzisionsfinish GmbH | Verfahren und vorrichtung zur oberflächenbearbeitung von werkstücken |
EP3038794B1 (de) * | 2013-08-28 | 2020-01-01 | MDS Coating Technologies Corp. | Tragflächenmaskierungswerkzeug und verfahren zum polieren einer tragfläche |
JP6547971B2 (ja) * | 2013-08-28 | 2019-07-24 | エムディーエス コーティング テクノロジーズ コーポレーションMds Coating Technologies Corp. | 翼形部の被覆具および翼形部の研磨方法 |
US9132528B2 (en) | 2013-10-08 | 2015-09-15 | General Electric Company | Refurbishing system |
ITFI20130248A1 (it) * | 2013-10-17 | 2015-04-18 | Nuovo Pignone Srl | "airfoil machine components polishing method" |
GB201411232D0 (en) * | 2014-06-25 | 2014-08-06 | Rolls Royce Plc | Component processing |
CN104511825A (zh) * | 2014-12-23 | 2015-04-15 | 苏州新一磁业有限公司 | 智能镜面抛光机 |
KR20190057753A (ko) * | 2017-11-20 | 2019-05-29 | (주)코미코 | 내플라즈마성 코팅막의 제조방법 및 이에 의해 형성된 내플라즈마성 부재 |
CN108044454A (zh) * | 2017-12-07 | 2018-05-18 | 北京天诚同创电气有限公司 | 用于风力发电机组叶片的打磨系统和方法 |
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DE2848029C2 (de) * | 1978-11-06 | 1983-05-05 | Ietatsu Tokyo Ohno | Fliehkraft-Tauchgleitschleifmaschine |
DE2857522A1 (de) * | 1978-11-30 | 1980-06-12 | Ietatsu Ohno | Schleifverfahren und -vorrichtung |
US4321310A (en) | 1980-01-07 | 1982-03-23 | United Technologies Corporation | Columnar grain ceramic thermal barrier coatings on polished substrates |
US4589175A (en) * | 1980-06-02 | 1986-05-20 | United Technologies Corporation | Method for restoring a face on the shroud of a rotor blade |
DE3918824A1 (de) | 1988-08-25 | 1990-03-08 | Braun Ag | Buegeleisensohle |
US5105525A (en) | 1988-08-25 | 1992-04-21 | Braun Aktiengesellschaft | Process for making a smoothing iron soleplate |
US5090870A (en) * | 1989-10-20 | 1992-02-25 | Gilliam Glenn R | Method for fluent mass surface texturing a turbine vane |
US5498484A (en) | 1990-05-07 | 1996-03-12 | General Electric Company | Thermal barrier coating system with hardenable bond coat |
US5251409A (en) * | 1992-06-15 | 1993-10-12 | Outboard Marine Corporation | Method of drag finishing a housing |
GB9426257D0 (en) | 1994-12-24 | 1995-03-01 | Rolls Royce Plc | Thermal barrier coating for a superalloy article and method of application |
US5702288A (en) * | 1995-08-30 | 1997-12-30 | United Technologies Corporation | Method of removing excess overlay coating from within cooling holes of aluminide coated gas turbine engine components |
US5683825A (en) | 1996-01-02 | 1997-11-04 | General Electric Company | Thermal barrier coating resistant to erosion and impact by particulate matter |
US6261154B1 (en) * | 1998-08-25 | 2001-07-17 | Mceneny Jeffrey William | Method and apparatus for media finishing |
US6406356B1 (en) * | 2001-03-12 | 2002-06-18 | Frederick E. Brooks | Wheel finishing apparatus and method |
US20040242134A1 (en) * | 2002-08-06 | 2004-12-02 | Jae-Seo Lee | Drag type wheel finishing machine |
US6962522B1 (en) * | 2004-05-12 | 2005-11-08 | Bbf Yamate Corporation | Barrel polishing device |
-
2000
- 2000-12-27 EP EP00128574A patent/EP1219389A1/de not_active Withdrawn
-
2001
- 2001-11-29 DE DE50106828T patent/DE50106828D1/de not_active Expired - Fee Related
- 2001-11-29 EP EP01989541A patent/EP1345732B1/de not_active Expired - Lifetime
- 2001-11-29 JP JP2002552713A patent/JP2004516159A/ja not_active Withdrawn
- 2001-11-29 CN CNA01820743XA patent/CN1481293A/zh active Pending
- 2001-11-29 US US10/451,911 patent/US7014533B2/en not_active Expired - Fee Related
- 2001-11-29 WO PCT/EP2001/013982 patent/WO2002051586A1/de active IP Right Grant
-
2005
- 2005-09-29 US US11/238,059 patent/US7118464B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7014533B2 (en) | 2006-03-21 |
EP1345732A1 (de) | 2003-09-24 |
CN1481293A (zh) | 2004-03-10 |
WO2002051586A1 (de) | 2002-07-04 |
DE50106828D1 (de) | 2005-08-25 |
US20060194526A1 (en) | 2006-08-31 |
JP2004516159A (ja) | 2004-06-03 |
US20040097170A1 (en) | 2004-05-20 |
US7118464B2 (en) | 2006-10-10 |
EP1219389A1 (de) | 2002-07-03 |
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