DE102005041559A1 - Layer assembly production apparatus for three-dimensional articles, has exposure unit arranged to expose selected part of formed fluid layer or resin layer on target surface using UV rays in linear exposure process - Google Patents
Layer assembly production apparatus for three-dimensional articles, has exposure unit arranged to expose selected part of formed fluid layer or resin layer on target surface using UV rays in linear exposure process Download PDFInfo
- Publication number
- DE102005041559A1 DE102005041559A1 DE102005041559A DE102005041559A DE102005041559A1 DE 102005041559 A1 DE102005041559 A1 DE 102005041559A1 DE 102005041559 A DE102005041559 A DE 102005041559A DE 102005041559 A DE102005041559 A DE 102005041559A DE 102005041559 A1 DE102005041559 A1 DE 102005041559A1
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- Germany
- Prior art keywords
- layer
- exposure
- line
- target surface
- resin layer
- 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.)
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Classifications
-
- 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
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
-
- 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
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur schichtaufbauenden Herstellung eines dreidimensionalen Gegenstandes nach den Oberbegriffen der Patentansprüche 1 und 2. Derartige Verfahren und Materialsysteme sind unter der Bezeichnung Rapid Technologien in unterschiedlicher Ausgestaltung bekannt.The The invention relates to a device and a method for layer-building Production of a three-dimensional object according to the generic terms of the claims 1 and 2. Such methods and material systems are under the Designation Rapid technologies in different design known.
Bei dem vom Massachusetts Institute of Technology entwickelten 3D Drucken werden Pulverschichten durch Bedrucken mit fluiden Bindermaterialien selektiv verfestigt. Durch den Einsatz von Mehrfachdruckköpfen kann ein hoher Materialdurchsatz und damit eine hohe Produktivität erzielt werden. Derartig hergestellte Bauteile sind jedoch grundsätzlich porös und müssen daher für viele Anwendungsbereiche nachverdichtet werden.at the 3D printing developed by the Massachusetts Institute of Technology become powder layers by printing with fluid binder materials selectively solidified. Through the use of multiple print heads can a high material throughput and thus high productivity achieved become. However, such components are basically porous and therefore must for many Fields of application are to be densified.
Bei dem an der University of Texas entwickelten Selektiven Lasersintern werden Pulverschichten durch Laserbestrahlung selektiv aufgeschmolzen und verfestigt. Mehrfachlaserköpfe sind zwar technisch machbar, aber sehr teuer und werden deshalb aus Kostengründen nicht verwendet. Daher weist dieses Verfahren eine geringere Produktivität auf. Allerdings können nahezu massive Bauteile direkt hergestellt werden.at the Selective Laser Sintering developed at the University of Texas Powder layers are selectively melted by laser irradiation and solidified. Multiple laser heads are technically feasible, but very expensive and therefore for cost reasons not used. Therefore, this method has a lower productivity. Indeed can almost massive components are produced directly.
In einer neueren Variante des Selektiven Lasersinterns wird ein Laserstrahl mit einer Zylinderlinse linear aufgeweitet und die Linienlänge auf der Arbeitsebene nach Bedarf variiert. Die maximale Aufweitung des Laserstrahls beträgt 40 mm. [Zhao & Zhu; A new line scanning SLS rapid prototyping technology; Proc. 6th. Int. Conf. Elect. Measurem. & Instr.; 1016-1019, 2003].In A newer variant of selective laser sintering is a laser beam linearly expanded with a cylindrical lens and the line length the working level varies as needed. The maximum expansion of the Laser beam is 40 mm. [Zhao &Zhu; A new line scanning SLS rapid prototyping technology; Proc. 6th. Int. Conf. Elect. Measurem. & Instr .; 1016-1019, 2003].
Bei der Stereolithographie werden photosensitive Fluidschichten durch Bestrahlung verfestigt. Dabei erfolgt die Bestrahlung üblicherweise mittels eines UV-Lasers ähnlich wie beim selektiven Lasersintern. Bei der Verfestigung der Fluidschichten tritt keine Porosität auf, aber der Nachteil der geringen Produktivität besteht ebenfalls.at Stereolithography are photosensitive fluid layers Irradiation solidifies. In this case, the irradiation usually takes place similar by means of a UV laser as in selective laser sintering. In the solidification of the fluid layers no porosity occurs but the downside of low productivity is as well.
Bei der Stereolithographie-Abwandlung des Solid Ground Curing wird jeweils eine gesamte photosensitive Fluidschicht flächig durch Bestrahlung durch eine Maske selektiv verfestigt. Dies erlaubt grundsätzlich eine sehr hohe Produktivität ohne Porosität. Allerdings ist die Bauteilgröße begrenzt, da der gesamte Bauraum gleichzeitig mit ausreichender Intensität bestrahlt werden muss.at The Stereolithography Variation of the Solid Ground Curing Will Be Each an entire photosensitive fluid layer surface by irradiation through a mask selectively solidified. This basically allows one very high productivity without porosity. However, the component size is limited, because the entire space is irradiated at the same time with sufficient intensity must become.
Die Aufgabe der vorliegenden Erfindung besteht daher darin, eine Vorrichtung und ein Verfahren zur schichtaufbauenden Herstellung eines dreidimensionalen Gegenstandes anzugeben, mit denen große, nicht-poröse Bauteile mit hoher Produktivität hergestellt werden können.The Object of the present invention is therefore a device and a method for layer-forming production of a three-dimensional Specify object, with which large, non-porous components produced with high productivity can be.
Diese Aufgabe wird durch die zeilenweise Belichtung photosensitiver Fluidschichten gelöst. Einerseits werden bei der Verwendung von Fluiden keine porösen Bauteile hergestellt. Andererseits erlaubt die zeilenweise Belichtung eine deutlich höhere Produktivität ohne starke Begrenzung des Bauraums.These Task is the line by line exposure of photosensitive fluid layers solved. On the one hand, when using fluids no porous components produced. On the other hand, the line-by-line exposure allows one significantly higher productivity without a strong limitation of the installation space.
Vorzugsweise erfolgt die zeilenweise Belichtung mittels einer LED-Zeilenbelichtung. Diese besteht aus einer linearen Aneinanderreihung von LEDs, die einzeln ansteuerbar sind und so die gleichzeitige selektive Belichtung einer Linie auf der Fluidoberfläche erlauben, die einer Linie durch den Querschnitt des herzustellen Bauteils entspricht.Preferably Line by line exposure is performed by means of an LED line exposure. This consists of a linear string of LEDs that are individually controllable and so the simultaneous selective exposure a line on the fluid surface allow to create a line through the cross section of the Component corresponds.
Geeignete LEDs zur Belichtung und Verfestigung photosensitiver Fluide sind im Handel erhältlich, insbesondere auch UV-LEDs, z.B. InGaN-Dioden.suitable LEDs for exposure and solidification of photosensitive fluids are available in the stores, especially UV LEDs, e.g. InGaN diodes.
In alternativer Ausgestaltung erfolgt die zeilenweise Belichtung mittels Belichtung durch eine Zeilenblende und eine Maske. Dazu wird eine Maske entsprechend dem jeweiligen Querschnitt des herzustellenden Bauteils auf eine Folie gedruckt. Für die Zeilenweise Belichtung der Fluidschicht wird die Folienmaske über die Zeilenblende gezogen während die Zeilenblende und die Belichtungseinheit über die Fluidschicht fahren.In alternative embodiment, the line-by-line exposure takes place by means of Exposure through a line mask and a mask. This will be a Mask according to the respective cross section of the produced Component printed on a foil. For the linewise exposure the fluid layer, the film mask is pulled over the line diaphragm while the Move the line diaphragm and the exposure unit over the fluid layer.
In einer weiteren vorteilhaften Ausgestaltung können auch mehrere Zeilen zu einer streifenartigen Belichtung zusammengefasst werden.In In a further advantageous embodiment, multiple lines can be added a strip-like exposure are summarized.
Besonders vorteilhaft erweisen sich die erfindungsgemäße Vorrichtung und das erfindungsgemäße Verfahren, wenn ein zweiphasiges Material (Composite) verwendet wird – vorzugsweise bestehend aus Monomer und organischen und anorganischen Füllstoffen.Especially the device according to the invention and the method according to the invention prove to be advantageous if a two-phase material (composite) is used - preferably consisting of monomer and organic and inorganic fillers.
Nachfolgend
werden anhand von zwei Ausführungsbeispielen
und der Figur die erfindungsgemäße Vorrichtung
und das erfindungsgemäße Verfahren
näher erläutert:
Ein
UV-sensitives Harz (Accura Bluestone von 3D-Systems) wird auf einer
Zielfläche
schichtweise aufgetragen und geglättet, ein ausgewählter Teil
der Schicht, entsprechend einem Querschnitt des Gegenstandes, wird
zeilenweise UV-bestrahlt, so dass das Harz im ausgewählten Teil
aushärtet,
dann werden die Schritte des Auftragens, des Glättens und des Bestrahlens für eine Mehrzahl
von Schichten wiederholt, so dass die gehärteten Teile der benachbarten
Schichten sich verbinden, um den Gegenstand zu bilden.The device according to the invention and the method according to the invention will be explained in more detail on the basis of two exemplary embodiments and the FIGURE.
A UV-sensitive resin (Accura Bluestone from 3D Systems) is layered and smoothened on a target surface, a selected portion of the layer corresponding to a cross section of the Ge is UV-irradiated line by line so that the resin cures in the selected part, then the steps of applying, smoothing and irradiating are repeated for a plurality of layers so that the hardened parts of the adjacent layers combine to form the article to build.
Gemäß dem ersten Ausführungsbeispiel erfolgt die zeilenweise Belichtung mittels einer UV-LED-Zeilenbelichtung. Diese besteht aus einer linearen Aneinanderreihung von UV-LEDs (InGaN-Dioden), die einzeln ansteuerbar sind und so die gleichzeitige selektive Belichtung einer Linie auf der Harzoberfläche erlauben, die einer Linie durch den Querschnitt des herzustellen Bauteils entspricht.According to the first embodiment the line by line exposure takes place by means of a UV LED line exposure. This consists of a linear arrangement of UV LEDs (InGaN diodes), which are individually controllable and so the simultaneous selective Allow exposure of a line on the resin surface, that of a line corresponds by the cross section of the produce component.
Die zeilenweise Belichtung erfolgt zeitgleich mit dem Glätten der Harzschicht. Während die Einrichtung zum Glätten über die Harzschicht fährt und diese glättet, fährt die Zeilenbelichtungseinheit dicht dahinter in gleich bleibendem Abstand über die Harzschicht und belichtet diese selektiv durch selektive Ansteuerung der einzelnen LEDs. Infolge der selektiven Belichtung erfolgt eine selektive Verfestigung der Harzschicht.The Line by line exposure takes place simultaneously with the smoothing of the Resin layer. While the device for smoothing over the Resin layer moves and this smoothes, she drives Lens exposure unit close behind at a constant distance over the Resin layer and selectively exposes them by selective control the individual LEDs. As a result of the selective exposure takes place selective solidification of the resin layer.
Gemäß dem zweiten
in der Figur dargestellten Ausführungsbeispiel
erfolgt die zeilenweise Belichtung mittels einer Zeilenblende
Besonders
vorteilhaft wird die Maske direkt vor dem Belichten mittels eines
integrierten Laserdruckers
Die erfindungsgemäße Vorrichtung und das erfindungsgemäße Verfahren erweisen sich in den Ausführungsformen der vorstehend beschriebenen Beispiele als besonders geeignet für Rapid Manufacturing-Anwendungen in der Automobilindustrie.The inventive device and the method according to the invention prove in the embodiments of the examples described above are particularly suitable for Rapid Manufacturing applications in the automotive industry.
Insbesondere kann so eine deutliche Verbesserung der Produktivität bei großen nicht-porösen Bauteilen erreicht werden.Especially So can a significant improvement in productivity for large non-porous components be achieved.
- 1,21.2
- Folienrollefilm roll
- 3,43.4
- Führungsrolleleadership
- 55
- Druckerprinter
- 66
- UV-BeleuchtungseinheitUV lighting unit
- 77
- Zeilenblendeline panel
- 88th
- Vorratsbehälter HarzReservoir resin
- 99
- Bauplatte = Zielflächebuilding board = Target area
- 1010
- Harzschichtresin layer
- 1111
- Belichtetes/verfestigtes Harz = BauteilIlluminated / solidified Resin = component
- 1212
- Überlaufbehälter HarzOverflow tank resin
- 1313
- Roller zum Glätten der Harzschichtscooter for straightening the resin layer
- MM
- Folienmaskefoil mask
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005041559A DE102005041559A1 (en) | 2005-08-31 | 2005-08-31 | Layer assembly production apparatus for three-dimensional articles, has exposure unit arranged to expose selected part of formed fluid layer or resin layer on target surface using UV rays in linear exposure process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005041559A DE102005041559A1 (en) | 2005-08-31 | 2005-08-31 | Layer assembly production apparatus for three-dimensional articles, has exposure unit arranged to expose selected part of formed fluid layer or resin layer on target surface using UV rays in linear exposure process |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005041559A1 true DE102005041559A1 (en) | 2007-03-01 |
Family
ID=37715637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005041559A Withdrawn DE102005041559A1 (en) | 2005-08-31 | 2005-08-31 | Layer assembly production apparatus for three-dimensional articles, has exposure unit arranged to expose selected part of formed fluid layer or resin layer on target surface using UV rays in linear exposure process |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005041559A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007009273B4 (en) * | 2007-02-26 | 2008-04-03 | Daimler Ag | Method and device for producing a three-dimensional article from a solidifiable material |
DE102007057450A1 (en) | 2007-11-29 | 2009-06-04 | Daimler Ag | Producing three-dimensional articles e.g. injection mold, comprises applying and pressing solidifyable fluid or powdered material layer on target surface, and illuminating selected part of the layer with energy beam or material beam |
-
2005
- 2005-08-31 DE DE102005041559A patent/DE102005041559A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007009273B4 (en) * | 2007-02-26 | 2008-04-03 | Daimler Ag | Method and device for producing a three-dimensional article from a solidifiable material |
DE102007009273C5 (en) * | 2007-02-26 | 2012-01-19 | Daimler Ag | Method and device for producing a three-dimensional article from a solidifiable material |
DE102007057450A1 (en) | 2007-11-29 | 2009-06-04 | Daimler Ag | Producing three-dimensional articles e.g. injection mold, comprises applying and pressing solidifyable fluid or powdered material layer on target surface, and illuminating selected part of the layer with energy beam or material beam |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20120901 |