DE102015100940A1 - Method and device for producing a component with an at least partially curved surface - Google Patents
Method and device for producing a component with an at least partially curved surface Download PDFInfo
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- DE102015100940A1 DE102015100940A1 DE102015100940.4A DE102015100940A DE102015100940A1 DE 102015100940 A1 DE102015100940 A1 DE 102015100940A1 DE 102015100940 A DE102015100940 A DE 102015100940A DE 102015100940 A1 DE102015100940 A1 DE 102015100940A1
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- 238000000034 method Methods 0.000 title claims description 27
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 239000000155 melt Substances 0.000 claims abstract 2
- 230000005855 radiation Effects 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 10
- 238000010894 electron beam technology Methods 0.000 claims description 8
- 238000010146 3D printing Methods 0.000 claims description 6
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000088 plastic resin Substances 0.000 claims description 3
- 238000000110 selective laser sintering Methods 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 230000005670 electromagnetic radiation Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 claims description 2
- 206010073306 Exposure to radiation Diseases 0.000 abstract 1
- 238000009499 grossing Methods 0.000 description 3
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
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- 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]
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- 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
- B22F12/30—Platforms or substrates
- B22F12/33—Platforms or substrates translatory in the deposition plane
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- 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
- B23K26/34—Laser welding for purposes other than joining
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- 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
- B29C64/188—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
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- 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
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- 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
- B33Y80/00—Products made by additive manufacturing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/10—Mirrors with curved faces
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/12—Formation of a green body by photopolymerisation, e.g. stereolithography [SLA] or digital light processing [DLP]
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/18—Formation of a green body by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF]
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- 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
- B22F12/10—Auxiliary heating means
- B22F12/13—Auxiliary heating means to preheat the material
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- 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
- B22F12/49—Scanners
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- 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
- B22F2005/005—Article surface comprising protrusions
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- 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
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- Engineering & Computer Science (AREA)
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
Abstract
Verfahren zur Herstellung eines Bauteils mit einer zumindest abschnittsweise gekrümmten Oberfläche (2), bei dem mit einem 3D-Drucker ein Substrat (1) erstellt oder bearbeitet wird, so dass im Bereich einer zu erzeugenden gekrümmten Oberfläche (2) eine stufenförmige Grundstruktur geschaffen wird, die eine Vielzahl von Teilflächen (3) aufweist, die zumindest teilweise einen Versatz, insbesondere einen Höhenversatz (4), zueinander aufweisen, und bei dem die stufenförmige Grundstruktur, insbesondere lokal, durch Beaufschlagung mit einer Strahlung bis zum Schmelzen erwärmt wird, so dass die Grundstruktur durch Oberflächenkräfte des zumindest teilweise aufgeschmolzenen Substrats (1) geglättet wird.Method for producing a component having an at least partially curved surface (2), in which a substrate (1) is created or processed with a 3D printer so that a step-shaped basic structure is created in the region of a curved surface (2) to be produced, which has a multiplicity of partial surfaces (3) which at least partially have an offset, in particular a vertical offset (4) relative to one another, and in which the step-shaped basic structure, in particular locally, is heated until it melts by exposure to radiation, such that the Basic structure is smoothed by surface forces of at least partially melted substrate (1).
Description
Die vorliegende Erfindung betrifft ein Verfahren und einer Vorrichtung zur Herstellung eines Bauteils mit einer zumindest abschnittsweise gekrümmten Oberfläche.The present invention relates to a method and a device for producing a component with an at least partially curved surface.
Aus der
Das der vorliegenden Erfindung zugrunde liegende Problem ist die Angabe eines Verfahrens eingangs genannten Art, mit dem die Grundstruktur einfacher und/oder effektiver und/oder kostengünstiger hergestellt werden kann.The problem underlying the present invention is the specification of a method of the type mentioned, with which the basic structure can be made easier and / or more effective and / or less expensive.
Dies wird erfindungsgemäß durch ein Verfahren mit den Merkmalen des Anspruchs 1 erreicht. Die Unteransprüche betreffen bevorzugte Ausgestaltungen der Erfindung.This is achieved according to the invention by a method having the features of claim 1. The subclaims relate to preferred embodiments of the invention.
Gemäß Anspruch 1 umfasst das erfindungsgemäße Verfahren folgende Verfahrensschritte:
Mit einem 3D-Drucker wird ein Substrat erstellt oder bearbeitet, so dass im Bereich einer zu erzeugenden gekrümmten Oberfläche eine stufenförmige Grundstruktur geschaffen wird, die eine Vielzahl von Teilflächen aufweist, die zumindest teilweise einen Versatz, insbesondere einen Höhenversatz, zueinander aufweisen, wobei weiterhin die stufenförmige Grundstruktur, insbesondere lokal, durch Beaufschlagung mit einer Strahlung bis zum Schmelzen erwärmt wird, so dass die Grundstruktur durch Oberflächenkräfte des zumindest teilweise aufgeschmolzenen Substrats geglättet wird. Mit einem 3D-Drucker lassen sich stufenförmige Grundstrukturen in guter Auflösung vergleichsweise einfach und kostengünstig herstellen. Das anschließende lokale Aufschmelzen der stufenförmigen Grundstruktur führt zu einer sehr effektiven Glättung der Oberfläche, so dass eine funktional sehr hochwertige Oberfläche geschaffen wird, die beispielsweise auch für Präzisionsmikrooptiken verwendet werden kann.According to claim 1, the method according to the invention comprises the following method steps:
With a 3D printer, a substrate is created or processed, so that in the region of a curved surface to be produced a step-shaped basic structure is provided which has a plurality of partial surfaces, at least partially an offset, in particular a height offset, to each other, wherein further step-shaped basic structure, in particular locally, is heated by the application of radiation until melting, so that the basic structure is smoothed by surface forces of the at least partially melted substrate. With a 3D printer, step-like basic structures with good resolution can be produced comparatively easily and inexpensively. The subsequent local melting of the step-shaped basic structure leads to a very effective smoothing of the surface, so that a functionally very high-quality surface is created, which can be used for example for precision micro-optics.
Dabei kann der 3D-Drucker als 3D-Druckmethode das selektive Laserschmelzen oder das selektive Lasersintern oder das Elektronenstrahlschmelzen oder das Elektronenstrahlsintern oder die Stereolithografie oder das Digital Light Processing oder das Polyjet-Modeling oder das Fused Deposition Modeling verwenden. Als Material für den 3D-Druck können Kunststoff oder Kunstharz oder ein keramisches Material oder ein Glas oder ein glasähnliches Material oder ein polymeres Material oder ein Metall verwendet werden. Es zeigt sich, dass gekrümmte Flächen in den unterschiedlichsten Materialien durch ein erfindungsgemäßes Verfahren mit einer glatten Oberfläche versehen werden können.The 3D printer can use as a 3D printing method selective laser melting or selective laser sintering or electron beam melting or electron beam or stereo lithography or digital light processing or the Polyjet modeling or fused deposition modeling. As the material for the 3D printing, plastic or synthetic resin or a ceramic material or a glass or a glass-like material or a polymeric material or a metal can be used. It turns out that curved surfaces in a very wide variety of materials can be provided with a smooth surface by a method according to the invention.
Eine erfindungsgemäße Vorrichtung gemäß Anspruch 10 umfasst einen 3D-Drucker sowie Mittel zur Erzeugung einer Strahlung, mit der ein von dem 3D-Drucker erstelltes oder bearbeitetes Substrat beaufschlagt werden kann, wobei die Vorrichtung ein erfindungsgemäßes Verfahren durchführen kann.A device according to the invention as claimed in claim 10 comprises a 3D printer and means for generating a radiation with which a substrate created or processed by the 3D printer can be acted upon, wherein the device can carry out a method according to the invention.
Weitere Merkmale und Vorteile der vorliegenden Erfindung werden deutlich anhand der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele unter Bezugnahme auf die beiliegende Abbildung. Darin zeigt:Other features and advantages of the present invention will become apparent from the following description of preferred embodiments with reference to the accompanying drawings. It shows:
Das erfindungsgemäße Verfahren sieht vor, dass in einem ersten Verfahrensschritt mit einem 3D-Drucker ein Substrat
Das erfindungsgemäße Verfahren sieht vor, dass der 3D-Drucker als 3D-Druckmethode das selektive Laserschmelzen oder das selektive Lasersintern oder das Elektronenstrahlschmelzen oder das Elektronenstrahlsintern oder die Stereolithografie oder das Digital Light Processing oder das Polyjet-Modeling oder das Fused Deposition Modeling verwenden kann.The method according to the invention provides that the 3D printer can use as a 3D printing method selective laser melting or selective laser sintering or electron beam melting or electron beam sintering or stereolithography or digital light processing or polyjet modeling or fused deposition modeling.
Das erfindungsgemäße Verfahren sieht weiterhin vor, dass als Material für den 3D-Druck Kunststoff oder Kunstharz oder ein keramisches Material oder ein Glas oder ein glasähnliches Material oder ein polymeres Material oder ein Metall verwendet werden kann.The method according to the invention furthermore provides that the material used for the 3D printing can be plastic or synthetic resin or a ceramic material or a glass or a glass-like material or a polymeric material or a metal.
Bei dem abgebildeten Ausführungsbeispiel ist das Bauteil eine optisch wirksame Struktur, insbesondere eine Linse, die zumindest für elektromagnetische Strahlung eines Teilbereichs des optischen Spektrums durchlässig ist, wie beispielsweise für Teile des sichtbaren Bereichs und/oder des Infrarotbereichs und/oder des Ultraviolettbereichs.In the illustrated embodiment, the component is an optically active structure, in particular a lens, at least for Electromagnetic radiation of a portion of the optical spectrum is transparent, such as for parts of the visible range and / or the infrared range and / or the ultraviolet range.
Nach der Erzeugung der stufenförmigen Grundstruktur mit dem 3D-Drucker wird das Substrat
Durch die Beaufschlagung mit Strahlung wird die Oberfläche im Bereich der stufenförmigen Grundstruktur aufgeschmolzen. Durch dieses Aufschmelzen wird die stufenförmige Grundstruktur geglättet, weil Oberflächenkräfte des geschmolzenen Bereichs eine Minimierung der Fläche und damit eine Glättung des Bereichs der stufenförmigen Grundstruktur bewirken.By applying radiation, the surface is melted in the region of the step-shaped basic structure. This melting smooths the step-shaped basic structure, because surface forces of the molten area cause a minimization of the area and thus a smoothing of the area of the stepped basic structure.
Die Tiefe der Aufschmelzzone in vertikaler Richtung in
Die Breite der linienförmigen Intensitätsverteilung in Linienquerrichtung kann etwa der Breite b der Teilflächen
Es besteht die Möglichkeit, dass das Substrat
Es besteht dabei durchaus auch die Möglichkeit, dass für das Vorheizen kein Ofen oder eine andere zusätzliche Heizquelle verwendet wird, sondern dass das Vorheizen von der Strahlung bewirkt wird, mit der das Substrat
Die Intensitätsverteilung kann dementsprechend in Linienquerrichtung eine „sesselförmige“ Intensitätsverteilung aufweisen mit einem ersten plateauähnlichen Bereich geringerer Intensität und einer in Vorschubrichtung auf dem Substrat
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 0664891 B1 [0002] EP 0664891 B1 [0002]
- WO 2008/128781 A1 [0020] WO 2008/128781 A1 [0020]
Claims (10)
Priority Applications (1)
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DE102015100940.4A DE102015100940A1 (en) | 2015-01-22 | 2015-01-22 | Method and device for producing a component with an at least partially curved surface |
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DE102015100940.4A DE102015100940A1 (en) | 2015-01-22 | 2015-01-22 | Method and device for producing a component with an at least partially curved surface |
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DE102015100940A1 true DE102015100940A1 (en) | 2016-07-28 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107931609A (en) * | 2017-11-24 | 2018-04-20 | 西北有色金属研究院 | A kind of preparation method of TiAl alloy turbo blade |
CN109672025A (en) * | 2017-10-13 | 2019-04-23 | 美国电磁兼容测试系统公司 | Radio-frequency lens and manufacturing method |
DE102021115402A1 (en) | 2021-06-15 | 2022-12-15 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for the additive manufacturing of components, in which a component is produced by depositing at least one material in the form of drops |
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EP0664891B1 (en) | 1992-10-15 | 1998-01-07 | HENTZE, Joachim | Process and device for producing optical lenses or the like |
DE10007962C1 (en) * | 2000-02-22 | 2001-07-26 | Werkzeugbau Siegfried Hofmann | Production of an injection molded or die cast mold comprises using a multiple step process to produce a hardened surface layer with a low degree of roughness |
DE10157647A1 (en) * | 2001-11-26 | 2003-06-05 | Concept Laser Gmbh | Process for the production of three-dimensional workpieces in a laser material processing system or a stereolitography system |
WO2008128781A1 (en) | 2007-04-24 | 2008-10-30 | Limo Patentverwaltung Gmbh & Co. Kg | Method for restructuring semiconductor layers |
WO2010123413A1 (en) * | 2009-04-24 | 2010-10-28 | Volvo Aero Corporation | A method for manufacturing an engine component |
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2015
- 2015-01-22 DE DE102015100940.4A patent/DE102015100940A1/en not_active Withdrawn
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EP0664891B1 (en) | 1992-10-15 | 1998-01-07 | HENTZE, Joachim | Process and device for producing optical lenses or the like |
DE10007962C1 (en) * | 2000-02-22 | 2001-07-26 | Werkzeugbau Siegfried Hofmann | Production of an injection molded or die cast mold comprises using a multiple step process to produce a hardened surface layer with a low degree of roughness |
DE10157647A1 (en) * | 2001-11-26 | 2003-06-05 | Concept Laser Gmbh | Process for the production of three-dimensional workpieces in a laser material processing system or a stereolitography system |
WO2008128781A1 (en) | 2007-04-24 | 2008-10-30 | Limo Patentverwaltung Gmbh & Co. Kg | Method for restructuring semiconductor layers |
WO2010123413A1 (en) * | 2009-04-24 | 2010-10-28 | Volvo Aero Corporation | A method for manufacturing an engine component |
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CN109672025A (en) * | 2017-10-13 | 2019-04-23 | 美国电磁兼容测试系统公司 | Radio-frequency lens and manufacturing method |
CN107931609A (en) * | 2017-11-24 | 2018-04-20 | 西北有色金属研究院 | A kind of preparation method of TiAl alloy turbo blade |
DE102021115402A1 (en) | 2021-06-15 | 2022-12-15 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for the additive manufacturing of components, in which a component is produced by depositing at least one material in the form of drops |
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