MXPA01002651A - Soldadura con laser de articulos de superaleacion. - Google Patents
Soldadura con laser de articulos de superaleacion.Info
- Publication number
- MXPA01002651A MXPA01002651A MXPA01002651A MXPA01002651A MXPA01002651A MX PA01002651 A MXPA01002651 A MX PA01002651A MX PA01002651 A MXPA01002651 A MX PA01002651A MX PA01002651 A MXPA01002651 A MX PA01002651A MX PA01002651 A MXPA01002651 A MX PA01002651A
- Authority
- MX
- Mexico
- Prior art keywords
- welding
- article
- laser
- further characterized
- superalloy
- Prior art date
Links
- 238000003466 welding Methods 0.000 title claims abstract description 74
- 229910000601 superalloy Inorganic materials 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 38
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 33
- 239000000956 alloy Substances 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000007711 solidification Methods 0.000 claims abstract description 7
- 230000008023 solidification Effects 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 4
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000001556 precipitation Methods 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract description 13
- 230000033001 locomotion Effects 0.000 description 10
- 230000035882 stress Effects 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000006698 induction Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910001011 CMSX-4 Inorganic materials 0.000 description 1
- 101100032932 Mus musculus Raly gene Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010002 mechanical finishing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/144—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor the fluid stream containing particles, e.g. powder
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/32—Bonding taking account of the properties of the material involved
-
- 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
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
- B23K2103/26—Alloys of Nickel and Cobalt and Chromium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/30—Application in turbines
- F05B2220/302—Application in turbines in gas turbines
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/153,477 US6054672A (en) | 1998-09-15 | 1998-09-15 | Laser welding superalloy articles |
| PCT/US1999/016271 WO2000015382A1 (en) | 1998-09-15 | 1999-07-26 | Laser welding superalloy articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MXPA01002651A true MXPA01002651A (es) | 2002-06-21 |
Family
ID=22547380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MXPA01002651A MXPA01002651A (es) | 1998-09-15 | 1999-07-26 | Soldadura con laser de articulos de superaleacion. |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6054672A (enExample) |
| EP (1) | EP1148967B1 (enExample) |
| JP (1) | JP4889858B2 (enExample) |
| KR (1) | KR100593053B1 (enExample) |
| AT (1) | ATE392290T1 (enExample) |
| AU (1) | AU1439500A (enExample) |
| BR (1) | BR9913669A (enExample) |
| CA (1) | CA2343639C (enExample) |
| DE (1) | DE69938563T2 (enExample) |
| ES (1) | ES2306538T3 (enExample) |
| MX (1) | MXPA01002651A (enExample) |
| PT (1) | PT1148967E (enExample) |
| WO (1) | WO2000015382A1 (enExample) |
Families Citing this family (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6297474B1 (en) | 1999-12-23 | 2001-10-02 | General Electric Company | Heating apparatus for a welding operation and method therefor |
| US6521861B2 (en) * | 2000-02-07 | 2003-02-18 | General Electric Company | Method and apparatus for increasing welding rate for high aspect ratio welds |
| US6495793B2 (en) * | 2001-04-12 | 2002-12-17 | General Electric Company | Laser repair method for nickel base superalloys with high gamma prime content |
| US6502303B2 (en) * | 2001-05-07 | 2003-01-07 | Chromalloy Gas Turbine Corporation | Method of repairing a turbine blade tip |
| US6489584B1 (en) | 2001-05-08 | 2002-12-03 | General Electric Company | Room-temperature surface weld repair of nickel-base superalloys having a nil-ductility range |
| US6651437B2 (en) * | 2001-12-21 | 2003-11-25 | General Electric Company | Combustor liner and method for making thereof |
| EP1340567A1 (en) * | 2002-02-27 | 2003-09-03 | ALSTOM (Switzerland) Ltd | Method of removing casting defects |
| US6696176B2 (en) | 2002-03-06 | 2004-02-24 | Siemens Westinghouse Power Corporation | Superalloy material with improved weldability |
| DE50300196D1 (de) * | 2002-03-26 | 2005-01-20 | Sulzer Markets & Technology Ag | Verfahren zum epitaktischen Wachstum mit energetischem Strahl |
| JP4229734B2 (ja) * | 2003-03-20 | 2009-02-25 | 株式会社Ｉｈｉ | 薄肉部分の肉盛溶接方法 |
| US7009137B2 (en) * | 2003-03-27 | 2006-03-07 | Honeywell International, Inc. | Laser powder fusion repair of Z-notches with nickel based superalloy powder |
| US20050023256A1 (en) * | 2003-07-31 | 2005-02-03 | Srikanth Sankaranarayanan | 3-D adaptive laser powder fusion welding |
| US6972390B2 (en) * | 2004-03-04 | 2005-12-06 | Honeywell International, Inc. | Multi-laser beam welding high strength superalloys |
| US20050274701A1 (en) * | 2004-06-10 | 2005-12-15 | United Technologies Corporation | Homogeneous welding via pre-heating for high strength superalloy joining and material deposition |
| US6872912B1 (en) | 2004-07-12 | 2005-03-29 | Chromalloy Gas Turbine Corporation | Welding single crystal articles |
| DE102004042878A1 (de) * | 2004-09-04 | 2006-03-09 | Mtu Aero Engines Gmbh | Verfahren zur Reparatur von Turbomaschinenschaufeln |
| US20060219758A1 (en) * | 2005-03-29 | 2006-10-05 | Siemens Westinghouse Power Corporation | Welding of gamma'-strengthened superalloys |
| US7094988B1 (en) | 2005-04-18 | 2006-08-22 | Honeywell International, Inc. | Laser welding heat treat process |
| US20060231535A1 (en) * | 2005-04-19 | 2006-10-19 | Fuesting Timothy P | Method of welding a gamma-prime precipitate strengthened material |
| US20070017906A1 (en) * | 2005-06-30 | 2007-01-25 | General Electric Company | Shimmed laser beam welding process for joining superalloys for gas turbine applications |
| GB2429941B (en) * | 2005-09-08 | 2011-05-11 | Welding Alloys Ltd | Manufacture of hardfaced rollers and plates |
| US20070158388A1 (en) * | 2006-01-06 | 2007-07-12 | Honeywell International, Inc. | Apparatus and method for welding superalloys |
| US8618440B2 (en) * | 2007-01-04 | 2013-12-31 | Siemens Energy, Inc. | Sprayed weld strip for improved weldability |
| US20080164301A1 (en) | 2007-01-10 | 2008-07-10 | General Electric Company | High temperature laser welding |
| US20100032414A1 (en) * | 2007-03-23 | 2010-02-11 | Nikolai Arjakine | Inert gas mixture and method for welding |
| JP4417977B2 (ja) | 2007-04-25 | 2010-02-17 | 株式会社日立製作所 | ガスタービン翼およびその製造方法 |
| US20090026173A1 (en) * | 2007-07-26 | 2009-01-29 | General Electric Company | Method and apparatus for welding an article |
| US20090026182A1 (en) * | 2007-07-27 | 2009-01-29 | Honeywell International, Inc. | In-situ brazing methods for repairing gas turbine engine components |
| US20100237049A1 (en) * | 2007-10-08 | 2010-09-23 | Selim Mokadem | Preheating temperature during remelting |
| EP2207640A1 (en) * | 2007-10-08 | 2010-07-21 | Siemens Aktiengesellschaft | Preheating temperature during remelting |
| US8809724B2 (en) | 2008-08-04 | 2014-08-19 | General Electric Company | Strategically placed large grains in superalloy casting to improve weldability |
| US20100140236A1 (en) * | 2008-12-04 | 2010-06-10 | General Electric Company | Laser machining system and method |
| EP2322313A1 (de) * | 2009-11-13 | 2011-05-18 | Siemens Aktiengesellschaft | Verfahren zum Schweissen von Werkstücken aus hochwarmfesten Superlegierungen mit besonderer Massenzufuhrrate des Schweisszusatzwerkstoffes |
| US9168613B2 (en) * | 2010-10-22 | 2015-10-27 | Paul T. Colby | Vertical laser cladding system |
| DE102011101576A1 (de) * | 2011-05-13 | 2012-11-15 | Mtu Aero Engines Gmbh | Kombinierte Erwärmung zum Auflöten einer Spitzenpanzerung mittels Induktion und Laser |
| CH705662A1 (de) * | 2011-11-04 | 2013-05-15 | Alstom Technology Ltd | Prozess zur Herstellung von Gegenständen aus einer durch Gamma-Prime-Ausscheidung verfestigten Superlegierung auf Nickelbasis durch selektives Laserschmelzen (SLM). |
| US9527162B2 (en) | 2011-11-07 | 2016-12-27 | Siemens Energy, Inc. | Laser additive repairing of nickel base superalloy components |
| EP2591872A1 (de) * | 2011-11-11 | 2013-05-15 | Siemens Aktiengesellschaft | Umschmelzverfahren und anschließendes Auffüllen und Bauteil |
| EP2614917A1 (de) * | 2012-01-10 | 2013-07-17 | Siemens Aktiengesellschaft | Laserschweißen von nickelbasierten Superlegierungen |
| KR20180026804A (ko) * | 2012-05-11 | 2018-03-13 | 지멘스 에너지, 인코포레이티드 | 니켈 베이스 초합금 컴포넌트들의 레이저 첨가제 수리 |
| SG11201407192PA (en) * | 2012-12-05 | 2014-12-30 | Liburdi Engineering | Method of cladding and fusion welding of superalloys using composite filler powder |
| US20160016259A1 (en) * | 2014-07-21 | 2016-01-21 | Siemens Energy, Inc. | Optimization of melt pool shape in a joining process |
| US9987708B2 (en) | 2015-03-02 | 2018-06-05 | United Technologies Corporation | Automated weld repair of combustor liners |
| WO2018157228A1 (en) * | 2017-03-03 | 2018-09-07 | Liburdi Engineering Limited | High gamma prime nickel based weldable superalloy and method of repairing and manufacturing of turbine engine components using the same |
| EP3388189B1 (en) | 2017-04-11 | 2022-03-02 | General Electric Company | Multiframe blade tip welding fixture |
| US10816963B2 (en) | 2017-06-23 | 2020-10-27 | General Electric Company | Systems and methods for automated welding |
| US11371349B2 (en) | 2019-04-05 | 2022-06-28 | Raytheon Technologies Corporation | Gas impingement in-process cooling system |
| JP6989059B1 (ja) * | 2020-10-15 | 2022-01-05 | 三菱電機株式会社 | 積層造形方法、積層造形装置及び積層造形システム |
| CN113403559B (zh) * | 2021-06-15 | 2022-04-29 | 中国航发成都发动机有限公司 | Inconel 718与Rene’41异种高温合金焊接结构件的热处理强化方法 |
| US12162109B2 (en) * | 2022-05-27 | 2024-12-10 | General Electric Company | System and method for contouring edges of airfoils |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4804815A (en) * | 1987-06-01 | 1989-02-14 | Quantum Laser Corporation | Process for welding nickel-based superalloys |
| US5106010A (en) * | 1990-09-28 | 1992-04-21 | Chromalloy Gas Turbine Corporation | Welding high-strength nickel base superalloys |
| US5554837A (en) * | 1993-09-03 | 1996-09-10 | Chromalloy Gas Turbine Corporation | Interactive laser welding at elevated temperatures of superalloy articles |
| US5900170A (en) * | 1995-05-01 | 1999-05-04 | United Technologies Corporation | Containerless method of producing crack free metallic articles by energy beam deposition with reduced power density |
| US5914059A (en) * | 1995-05-01 | 1999-06-22 | United Technologies Corporation | Method of repairing metallic articles by energy beam deposition with reduced power density |
-
1998
- 1998-09-15 US US09/153,477 patent/US6054672A/en not_active Expired - Lifetime
-
1999
- 1999-07-26 DE DE69938563T patent/DE69938563T2/de not_active Expired - Fee Related
- 1999-07-26 EP EP99969056A patent/EP1148967B1/en not_active Expired - Lifetime
- 1999-07-26 JP JP2000569958A patent/JP4889858B2/ja not_active Expired - Lifetime
- 1999-07-26 PT PT99969056T patent/PT1148967E/pt unknown
- 1999-07-26 KR KR1020017003302A patent/KR100593053B1/ko not_active Expired - Lifetime
- 1999-07-26 ES ES99969056T patent/ES2306538T3/es not_active Expired - Lifetime
- 1999-07-26 MX MXPA01002651A patent/MXPA01002651A/es active IP Right Grant
- 1999-07-26 CA CA002343639A patent/CA2343639C/en not_active Expired - Lifetime
- 1999-07-26 AU AU14395/00A patent/AU1439500A/en not_active Abandoned
- 1999-07-26 AT AT99969056T patent/ATE392290T1/de not_active IP Right Cessation
- 1999-07-26 BR BR9913669-4A patent/BR9913669A/pt not_active Application Discontinuation
- 1999-07-26 WO PCT/US1999/016271 patent/WO2000015382A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US6054672A (en) | 2000-04-25 |
| DE69938563D1 (de) | 2008-05-29 |
| BR9913669A (pt) | 2001-09-25 |
| EP1148967A1 (en) | 2001-10-31 |
| ATE392290T1 (de) | 2008-05-15 |
| JP2002524268A (ja) | 2002-08-06 |
| EP1148967A4 (en) | 2007-05-02 |
| AU1439500A (en) | 2000-04-03 |
| CA2343639A1 (en) | 2000-03-23 |
| EP1148967B1 (en) | 2008-04-16 |
| DE69938563T2 (de) | 2009-08-13 |
| KR20010073164A (ko) | 2001-07-31 |
| WO2000015382A1 (en) | 2000-03-23 |
| PT1148967E (pt) | 2008-07-23 |
| ES2306538T3 (es) | 2008-11-01 |
| CA2343639C (en) | 2009-01-20 |
| KR100593053B1 (ko) | 2006-06-26 |
| JP4889858B2 (ja) | 2012-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant or registration |