EP3206817A4 - Laser additive manufacture of three-dimensional components containing multiple materials formed as integrated systems - Google Patents
Laser additive manufacture of three-dimensional components containing multiple materials formed as integrated systems Download PDFInfo
- Publication number
- EP3206817A4 EP3206817A4 EP15850696.4A EP15850696A EP3206817A4 EP 3206817 A4 EP3206817 A4 EP 3206817A4 EP 15850696 A EP15850696 A EP 15850696A EP 3206817 A4 EP3206817 A4 EP 3206817A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- containing multiple
- materials formed
- components containing
- multiple materials
- integrated systems
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/40—Radiation means
- B22F12/44—Radiation means characterised by the configuration of the radiation means
- B22F12/45—Two or more
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3602—Carbonates, basic oxides or hydroxides
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3603—Halide salts
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/362—Selection of compositions of fluxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/53—Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/04—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Composite Materials (AREA)
- Automation & Control Theory (AREA)
- Plasma & Fusion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Laser Beam Processing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/513,535 US9776282B2 (en) | 2012-10-08 | 2014-10-14 | Laser additive manufacture of three-dimensional components containing multiple materials formed as integrated systems |
PCT/US2015/051569 WO2016060799A1 (en) | 2014-10-14 | 2015-09-23 | Laser additive manufacture of three-dimensional components containing multiple materials formed as integrated systems |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3206817A1 EP3206817A1 (en) | 2017-08-23 |
EP3206817A4 true EP3206817A4 (en) | 2018-07-04 |
Family
ID=55747109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15850696.4A Withdrawn EP3206817A4 (en) | 2014-10-14 | 2015-09-23 | Laser additive manufacture of three-dimensional components containing multiple materials formed as integrated systems |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3206817A4 (en) |
KR (1) | KR102026354B1 (en) |
CN (1) | CN106794519B (en) |
WO (1) | WO2016060799A1 (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018022034A1 (en) * | 2016-07-27 | 2018-02-01 | Hewlett-Packard Development Company, L.P. | Forming three-dimensional (3d) electronic parts |
US10556820B2 (en) * | 2017-08-09 | 2020-02-11 | Harris Corporation | Method for making an optical fiber device from a 3D printed preform body and related structures |
CN108080813A (en) * | 2017-12-03 | 2018-05-29 | 温州宏丰电工合金股份有限公司 | A kind of preparation method of copper-iron alloy surface-active solder flux applied to electric resistance welding |
EP3539712B1 (en) * | 2017-12-20 | 2020-08-05 | C.R.F. Società Consortile per Azioni | A method for applying a reinforcement of metal material to a component of metal material, particularly in the construction of a motor-vehicle body or a sub-assembly thereof |
CN108213408B (en) * | 2018-01-11 | 2020-03-13 | 中南大学 | Method for preparing porous metal part with complex structure by using 3D printing technology |
CN110405204B (en) * | 2018-04-28 | 2021-09-10 | 深圳市裕展精密科技有限公司 | Preparation method of heterogeneous metal piece |
AU2019290657A1 (en) * | 2018-06-19 | 2021-02-11 | MELD Manufacturing Corporation | Solid-state methods of joining dissimilar materials and parts and solid-state additive manufacturing of coatings |
DE102018210282A1 (en) * | 2018-06-25 | 2020-01-02 | Volkswagen Aktiengesellschaft | Device and method for producing a three-dimensional object made up of at least one material layer |
CN109130174A (en) * | 2018-08-17 | 2019-01-04 | 上海联泰科技股份有限公司 | Optical system, control method and system, 3D printing equipment |
CN109202077B (en) * | 2018-08-30 | 2021-06-01 | 广州瑞通增材科技有限公司 | 3D printing method |
JP7079703B2 (en) * | 2018-09-13 | 2022-06-02 | 三菱重工業株式会社 | Laminated molding method of joints and joint members |
US20200306885A1 (en) * | 2019-04-01 | 2020-10-01 | GM Global Technology Operations LLC | Methods for forming gradient metallic bodies via additive manufacturing |
CN109773183B (en) * | 2019-04-08 | 2021-08-27 | 长沙集智创新工业设计有限公司 | Medical metal ceramic material and preparation method thereof |
US11465212B2 (en) * | 2019-05-24 | 2022-10-11 | Siemens Ltd., China | Electric motor, laminated iron core and manufacturing method therefor |
RU2713254C1 (en) * | 2019-07-29 | 2020-02-04 | Общество с ограниченной ответственностью "Малое инновационное предприятие "Центр компетенций аддитивных технологий" (ООО "МИП "ЦКАТ") | Method of making articles from metal powders |
CN110777276B (en) * | 2019-10-23 | 2021-05-28 | 广东工业大学 | Method for enhancing performance of alloy by using aluminum oxide based on laser 3D printing |
CN111036901A (en) * | 2019-12-10 | 2020-04-21 | 西安航天发动机有限公司 | Selective laser melting forming method for multi-material part |
CN113522688B (en) * | 2020-03-30 | 2022-12-30 | 中微半导体设备(上海)股份有限公司 | Plasma corrosion resistant component, preparation method thereof and plasma processing equipment |
CN111408720B (en) * | 2020-04-29 | 2020-12-15 | 西北工业大学 | Laser additive manufacturing method for metal parts made of iron-nickel-manganese-copper dissimilar materials |
WO2022036591A1 (en) * | 2020-08-19 | 2022-02-24 | 西门子股份公司 | Method and device for formulating printing process in additive manufacturing |
DE102021200321A1 (en) * | 2021-01-14 | 2022-07-14 | Forschungszentrum Jülich GmbH | Thermal barrier system and method of manufacture |
CN113185304A (en) * | 2021-05-13 | 2021-07-30 | 大连理工大学 | Method for regulating and controlling structure and performance of melt authigenic ceramic component manufactured by laser additive based on heat treatment method |
CN114921706B (en) * | 2022-04-25 | 2023-08-01 | 西北工业大学 | Modified nickel-base casting superalloy and preparation method thereof |
CN115319110B (en) * | 2022-07-22 | 2024-05-24 | 华中科技大学 | Ceramic reinforced metal matrix composite material and additive manufacturing method thereof |
KR102507407B1 (en) * | 2022-12-09 | 2023-03-08 | 터보파워텍(주) | Fixture for thermal barrier coating of hot gas path parts by 3D printing laser cladding |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN86102751A (en) * | 1986-04-21 | 1987-11-11 | 自贡中国电焊条厂 | Sintering flux with ultra-low hydrogen and high alkaline sintered by high temp |
JP2009039761A (en) * | 2007-08-09 | 2009-02-26 | Nippon Steel & Sumikin Welding Co Ltd | Flux for submerged-arc welding for steel for low temperature use, and welding method thereof |
US7879282B2 (en) * | 2003-07-25 | 2011-02-01 | Loughborough University Enterprises Limited | Method and apparatus for combining particulate material |
US20130140278A1 (en) * | 2011-01-13 | 2013-06-06 | Gerald J. Bruck | Deposition of superalloys using powdered flux and metal |
US20140099476A1 (en) * | 2012-10-08 | 2014-04-10 | Ramesh Subramanian | Additive manufacture of turbine component with multiple materials |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6391251B1 (en) * | 1999-07-07 | 2002-05-21 | Optomec Design Company | Forming structures from CAD solid models |
EP1400339A1 (en) * | 2002-09-17 | 2004-03-24 | Siemens Aktiengesellschaft | Method for manufacturing a three-dimensional object |
US20070003416A1 (en) * | 2005-06-30 | 2007-01-04 | General Electric Company | Niobium silicide-based turbine components, and related methods for laser deposition |
FR2972379B1 (en) * | 2011-03-07 | 2014-01-17 | Snecma | METHOD FOR LOCALLY RECHARGING DAMAGED THERMOMECHANICAL PIECE AND PART THEREFORE PRODUCED, IN PARTICULAR TURBINE PIECE |
EP2502729A1 (en) * | 2011-03-25 | 2012-09-26 | BAE Systems Plc | Additive layer manufacturing |
JP2013141681A (en) * | 2012-01-10 | 2013-07-22 | Kobe Steel Ltd | Bond flux for submerged arc welding, wire, welding metal and welding method |
US20140252685A1 (en) * | 2013-03-06 | 2014-09-11 | University Of Louisville Research Foundation, Inc. | Powder Bed Fusion Systems, Apparatus, and Processes for Multi-Material Part Production |
-
2015
- 2015-09-23 KR KR1020177013100A patent/KR102026354B1/en active IP Right Grant
- 2015-09-23 EP EP15850696.4A patent/EP3206817A4/en not_active Withdrawn
- 2015-09-23 CN CN201580055377.XA patent/CN106794519B/en active Active
- 2015-09-23 WO PCT/US2015/051569 patent/WO2016060799A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN86102751A (en) * | 1986-04-21 | 1987-11-11 | 自贡中国电焊条厂 | Sintering flux with ultra-low hydrogen and high alkaline sintered by high temp |
US7879282B2 (en) * | 2003-07-25 | 2011-02-01 | Loughborough University Enterprises Limited | Method and apparatus for combining particulate material |
JP2009039761A (en) * | 2007-08-09 | 2009-02-26 | Nippon Steel & Sumikin Welding Co Ltd | Flux for submerged-arc welding for steel for low temperature use, and welding method thereof |
US20130140278A1 (en) * | 2011-01-13 | 2013-06-06 | Gerald J. Bruck | Deposition of superalloys using powdered flux and metal |
US20140099476A1 (en) * | 2012-10-08 | 2014-04-10 | Ramesh Subramanian | Additive manufacture of turbine component with multiple materials |
Non-Patent Citations (1)
Title |
---|
See also references of WO2016060799A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN106794519A (en) | 2017-05-31 |
WO2016060799A1 (en) | 2016-04-21 |
CN106794519B (en) | 2019-05-28 |
EP3206817A1 (en) | 2017-08-23 |
KR102026354B1 (en) | 2019-09-27 |
KR20170070181A (en) | 2017-06-21 |
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