WO2001072501A1 - Method and device for producing components from light-curable materials - Google Patents

Method and device for producing components from light-curable materials

Info

Publication number
WO2001072501A1
WO2001072501A1 PCT/DE2001/001185 DE0101185W WO0172501A1 WO 2001072501 A1 WO2001072501 A1 WO 2001072501A1 DE 0101185 W DE0101185 W DE 0101185W WO 0172501 A1 WO0172501 A1 WO 0172501A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
component
material
platform
characterized
mask
Prior art date
Application number
PCT/DE2001/001185
Other languages
German (de)
French (fr)
Inventor
Holger Fricke
Holger LÖFFLER
Original Assignee
Fraunhofer Gesellschaft Zur Förderung Der Angewandten Forschung E. V.
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/10Processes of additive manufacturing
    • B29C64/106Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/124Processes 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
    • B29C64/129Processes 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y10/00Processes of additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor

Abstract

The invention relates to a method for producing components and component prototypes from light-curable materials. According to said method, the material is cured using light and the component is constructed on a component platform as the material is exposed to light. The material (6) is continuously supplied to the component platform (2) and hence, the component to be constructed (7). The exposure of the material (6) to light and the curing thereof takes place continuously, the component platform (2) being continuously transported in a material container (1) and suitable devices ensuring that the areas of the component (7) or the component platform (2) that produce the future structure of the component are exposed to the light continuously.

Description

Method and apparatus for production of components from materials lichtaushartbaren

The invention relates to a method and an apparatus for manufacturing of components and component prototypes from lichtaushartbaren materials, according to the preamble of claims 1 and 8

Such methods are known inter alia under the term Rapid Prototyping This term includes a variety of different methods in which components and component prototypes are made fast, these methods allow direct configuration of a three-dimensional component or component prototypes In the rapid prototyping process methods are known in which the component contours or the component structures are produced by light curing a flussigen plastic case, a LIQUID photopolymer resin is excavated degenerates with a focused laser beam by a component platform is wetted with the flussigen photopolymer resin and directed to a UV laser beam the resin is characterized outgoing cured in the areas that the later component arising the ambient non-exposed resin remains unaffected and does not harden after complete exposure of interest here area and thus after curing of the resin is the component a bgesenkt and a further layer height of the resin is applied and the Aushartervorgang proceeds identical for this new layer Finally effected a complete has hardened, the thus constituted component in a UV oven Another variant of the method described above is that the curing of the individual Kunststoffschichtchen not with a a focused laser beam is carried out, but with the aid of diffuse light through a mask, the cured resin layers exposed, the mask corresponding to the shape of the desired contour of the to be established component the process is relatively complicated, since after each exposure of the layer to be produced it after hardening and Auspolymeπsierung must be treated accordingly, as the other areas are still filled with LIQUID monomer, so that the entire process of such a device fabrication is relatively expensive extent, the build-up rates of the processes described are relatively small Object of the present invention is the gattungsgemaße method and apparatus for carrying out this method further develop so that the cost for producing a component or component prototypes is minimal

This object is achieved by the specified in claims 1 and 8 Invention

The essential feature of the inventive method, that the configuration process of prototype components is carried out continuously this case, a component platform is moved continuously, wherein the lichtaushartbare material is not applied in layers on the component platform to build the component and outgoing cured, but the component platform through this in the liquid or in material fließfahiger powder form contained surround is only exposed in the areas which correspond to the instantaneous section of the to be established component the selective exposure of the component platform or the to be established component is by an appropriate assignment of a device that can be formed advantageously in the form of a mask to the component platform realized, it is ensured that by the change of the mask, that is, by controlling the mask such that the result of the continuously varying distance between the platform component and the light source, the structure of the component is simulated exactly by light Hartung

The invention is illustrated by way of Ausfuhrungsbeispieles and in Figures 1 and 2 near explained FIG

- Figure 1 shows an apparatus for the continuous production of components and component prototypes

- Figure 2 shows an example of a mask calculation

The apparatus shown schematically in Figure 1 for the continuous production of components and component prototypes, a filled with a liquid or present in Pulverτorm photoaushartbarem plastic container 1, a one component platform 2 and a light source 3 at between the light source 3 and the component platform 2 located in the container 1 is a mask 4, the component platform 2 is a diffuse light coming from the light source 3, illuminates the bottom 5 of the container 1 is transparent the incoming through the bottom 5 at the component platform 2 light initiates the polymerization of the resin in the bath 1 6 the plastic material 6 is first deposited on the component platform 2 from or in spateren progress at the just previously formed structure of the component 7 by the continuous movement of the member platform 2 upward flows from the side of the component platform 2 constantly fresh monomer once it belic is htet begin to cross-link is formed which characterized with increasing degree of crosslinking a gradient from Behalterboden 5 upward to αem location at which the crosslinking reaction stops the crosslinking reaction is controlled so that a solidification only enters at a certain distance from the tank bottom 5, so adhesion of the component 7 on the container bottom 5 is absent. This can be achieved in that the container bottom 5 is cooled, whereby the plastic 6 there has a lower reactivity.

The incoming from the light source 3 reaches only the areas of the building platform 2, which give the spatere component 7 This occurs in the representation of Figure 1 through a mask technique using the illustrated mask 4 Another possibility of controlling the Lichtflußes is Digital Processing Technology (DLP ) another embodiment, the formation of the container bottom 5 as a mask,

In Fig 2 is a part 8 and an associated mask shown 4, this component 8 is irradiated through the container bottom 5 from the z-direction uniformly with ultraviolet light. The irradiation takes place continuously. On the container bottom 5, or between the light source and the bath 1, the mask 4 is arranged. The mask 4 can be controlled in the x, y plane; by it emits the UV light before it can reach the material. 6 the mask, the mask 4 may be in the local area, that is, with particular values ​​of x, y realize at least two states absorbed In state A / reflects the UV light stronger than in the state B It is an advantage if the mask also intermediate states of A + B can realize These intermediate states are bereichnet to as grayscale C They can be characterized, for example, realized by switching in rapid temporal sequence between states A and B. Such a mask 4 can be controlled with the aid of a computer program The program realizes the geometry of the component to be manufactured 8 and calculates a section 9 of the member 8 in the x, y-plane at a given value in the z-direction. This value is dependent on the construction time and is based on the increasing of the construction period spacing of the component platform 2 to the bath bottom 5. According to the information of this section 9, the mask 4 is controlled as follows If a local region of the section containing 9 material, it is in realized the corresponding local area of ​​the mask 4, the state B If one local area of ​​the cut 9, no material is included realized in the corresponding local area of ​​the mask 4, the state a If one local area of ​​the cut 9 are only partially cured, in the corresponding realized local area of ​​the mask 4, an intermediate state C

The inventive method, which is performed by the embodiment illustrated in FIG. 1 device, allows for high processing speeds that are several hundred times faster than the known process speeds, the traverse speed of the component platform is in the range 1 mm / sec, and the velocity in the range of Maskenanderung at 00 1 / sec This is attainable by that the material can be continuously illuminated and the layers may be continuously built up by the continuous movement of the member platform

With the continued development of the component, a surface is created which has no perceptible transitions. The surface of the component thus produced is smooth the mask technology is decisive for the surface quality of a component thus produced is used as a mask an LC display, it is possible to realize more than 100 masks per second, which means that the surface seems almost perfectly smooth

Claims

claims
A process for the preparation of components and component prototypes from lichtaushartbaren materials, in which the material is excavated cured by light and which corresponds to the outgoing degenerated structure of the later component structure, and wherein the component is constructed on a component platform by exposing the material with light, characterized in that the material (6) the component platform (2) and thus to the to be established member (7) is supplied continuously, and that the exposure and hardening of the material (6) is carried out continuously, wherein the component platform (2) in a Werkstoffbehalter (1) verfahrt continuously and by suitable devices ensure that the areas of the component (7) or the component platform (2), which give the spatere device structure are continuously exposed
A method according to claim 1, characterized in that the component platform (2) verfahrt continuously filled in with lichtaushartbarem material (6) container (1) and that arranged between the component platform (2) and a light source (3), a mask (4) that the exposure of the cured portions of the component on the platform (2) to be set up member (7) by the continuous change of the mask (4) and adaptation to the component platform motion is achieved
The method of claim 1 or 2, characterized in that the material used is a lichtaushartbares photopolymer method according to any one of claims 1 to 3, characterized in that the photocurable material (6) is fließfahig
A method according to claim 4, characterized in that the material (6) is in liquid form.
A method according to claim 4, characterized in that the material (6) is in powder form.
A method according to claim 6, characterized in that the material (6) or a powder of metal, non-metal, ceramic, cermet or plastic mixtures thereof
Apparatus for carrying out the method according to any one of claims 1 to 7, characterized in that the component platform (2) arranged in a Werkstoffbehalter (1) and continuously movable in this, and that a light source (3), the component platform (2) exposed, is present and controlled that between the light source (3) and the component platform (2) according to the movement of the component platform (2) and the structure of the component to be produced (7) mask (4) is arranged, wherein the control of the mask (4) ensure that only the parts of the component platform (2) and based thereon the component (7) to be exposed corresponding to the structure of the finished component (7).
Device according to claim 8, characterized in that the mask (4) is formed by an LCD.
Device according to claim 8 or 9, characterized in that the mask (4) and / or the movement of the member platform (2) is controlled by a computer.
Device according to one of claims 8 to 1 0, characterized in that the bottom (5) of the material container (1) is light-transmitting device according to claim 1 1, characterized in that the Werkstoffbehalter (1) is illuminated from below and that the component platform ( 2) continuously upward verfahrt
PCT/DE2001/001185 2000-03-28 2001-03-28 Method and device for producing components from light-curable materials WO2001072501A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2000115408 DE10015408A1 (en) 2000-03-28 2000-03-28 Producing components from light-curable materials, e.g. for rapid prototyping, involves continuous material supply and support platform movement
DE10015408.5 2000-03-28

Publications (1)

Publication Number Publication Date
WO2001072501A1 true true WO2001072501A1 (en) 2001-10-04

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Application Number Title Priority Date Filing Date
PCT/DE2001/001185 WO2001072501A1 (en) 2000-03-28 2001-03-28 Method and device for producing components from light-curable materials

Country Status (2)

Country Link
DE (1) DE10015408A1 (en)
WO (1) WO2001072501A1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008055533A1 (en) * 2006-11-10 2008-05-15 Envisiontec Gmbh Continuous, generative method and apparatus for the production of a three-dimensional object
USRE43955E1 (en) 2004-05-10 2013-02-05 Envisiontec Gmbh Process for the production of a three-dimensional object with resolution improvement by pixel-shift
US8658076B2 (en) 2007-10-26 2014-02-25 Envisiontec Gmbh Process and freeform fabrication system for producing a three-dimensional object
US8815143B2 (en) 2006-04-28 2014-08-26 Envisiontec Gmbh Method for producing a three-dimensional object by means of mask exposure
US8845316B2 (en) 2007-07-04 2014-09-30 Envisiontec Gmbh Process and device for producing a three-dimensional object
US8862260B2 (en) 2004-05-10 2014-10-14 Envisiontec Gmbh Process for the production of a three-dimensional object with resolution improvement by “pixel shift”
US9205601B2 (en) 2013-02-12 2015-12-08 Carbon3D, Inc. Continuous liquid interphase printing
US9360757B2 (en) 2013-08-14 2016-06-07 Carbon3D, Inc. Continuous liquid interphase printing
US9453142B2 (en) 2014-06-23 2016-09-27 Carbon3D, Inc. Polyurethane resins having multiple mechanisms of hardening for use in producing three-dimensional objects
US9486944B2 (en) 2009-10-19 2016-11-08 Global Filtration Systems Resin solidification substrate and assembly
US9498920B2 (en) 2013-02-12 2016-11-22 Carbon3D, Inc. Method and apparatus for three-dimensional fabrication
US9527244B2 (en) 2014-02-10 2016-12-27 Global Filtration Systems Apparatus and method for forming three-dimensional objects from solidifiable paste
EP3068610A4 (en) * 2013-11-14 2017-03-01 Structo Pte Ltd Additive manufacturing device and method
US9975295B2 (en) 2014-08-12 2018-05-22 Carbon, Inc. Acceleration of stereolithography
US10016938B2 (en) 2016-05-02 2018-07-10 Carbon, Inc. Continuous liquid interphase printing

Families Citing this family (3)

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DE102004057600A1 (en) 2004-11-29 2006-06-14 Bayerische Motoren Werke Ag Seat occupancy pressure sensor
DE102007010624B4 (en) * 2007-03-02 2009-04-30 Deltamed Gmbh Device for layerwise generative production of three-dimensional molded articles, methods of making these moldings and these molded parts
CN105034370A (en) * 2015-07-13 2015-11-11 苏州大学 Rapid forming method based on mask film curing

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US5171490A (en) * 1988-11-29 1992-12-15 Fudim Efrem V Method and apparatus for production of three-dimensional objects by irradiation of photopolymers
DE9319405U1 (en) * 1993-12-17 1994-03-31 Forschungszentrum Informatik A Apparatus for producing a three-dimensional object (model) according to the principle of the photo-solidification
DE29911122U1 (en) * 1999-06-25 1999-09-30 Hap Handhabungs Automatisierun Apparatus for producing a three-dimensional object

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DE4102261A1 (en) * 1991-01-23 1992-07-30 Artos Med Produkte Appts. for making shaped articles - has laser-curing liq. in tank with transparent base above patterned band to define areas of liq. irradiated by laser beam source below
JPH04371829A (en) * 1991-06-21 1992-12-24 Teijin Seiki Co Ltd Three dimensional shape-making method and device

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US5171490A (en) * 1988-11-29 1992-12-15 Fudim Efrem V Method and apparatus for production of three-dimensional objects by irradiation of photopolymers
DE9319405U1 (en) * 1993-12-17 1994-03-31 Forschungszentrum Informatik A Apparatus for producing a three-dimensional object (model) according to the principle of the photo-solidification
DE29911122U1 (en) * 1999-06-25 1999-09-30 Hap Handhabungs Automatisierun Apparatus for producing a three-dimensional object

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE43955E1 (en) 2004-05-10 2013-02-05 Envisiontec Gmbh Process for the production of a three-dimensional object with resolution improvement by pixel-shift
US8862260B2 (en) 2004-05-10 2014-10-14 Envisiontec Gmbh Process for the production of a three-dimensional object with resolution improvement by “pixel shift”
US8815143B2 (en) 2006-04-28 2014-08-26 Envisiontec Gmbh Method for producing a three-dimensional object by means of mask exposure
WO2008055533A1 (en) * 2006-11-10 2008-05-15 Envisiontec Gmbh Continuous, generative method and apparatus for the production of a three-dimensional object
EP3187328A1 (en) * 2006-11-10 2017-07-05 Envisiontec GmbH Generative method and device for creating a three dimensional object
US8845316B2 (en) 2007-07-04 2014-09-30 Envisiontec Gmbh Process and device for producing a three-dimensional object
US9067361B2 (en) 2007-07-04 2015-06-30 Envisiontec Gmbh Process and device for producing a three-dimensional object
US8658076B2 (en) 2007-10-26 2014-02-25 Envisiontec Gmbh Process and freeform fabrication system for producing a three-dimensional object
US9486944B2 (en) 2009-10-19 2016-11-08 Global Filtration Systems Resin solidification substrate and assembly
US9205601B2 (en) 2013-02-12 2015-12-08 Carbon3D, Inc. Continuous liquid interphase printing
US9216546B2 (en) 2013-02-12 2015-12-22 Carbon3D, Inc. Method and apparatus for three-dimensional fabrication with feed through carrier
US9993974B2 (en) 2013-02-12 2018-06-12 Carbon, Inc. Method and apparatus for three-dimensional fabrication
US9211678B2 (en) 2013-02-12 2015-12-15 Carbon3D, Inc. Method and apparatus for three-dimensional fabrication
US9498920B2 (en) 2013-02-12 2016-11-22 Carbon3D, Inc. Method and apparatus for three-dimensional fabrication
US9360757B2 (en) 2013-08-14 2016-06-07 Carbon3D, Inc. Continuous liquid interphase printing
EP3068610A4 (en) * 2013-11-14 2017-03-01 Structo Pte Ltd Additive manufacturing device and method
US9527244B2 (en) 2014-02-10 2016-12-27 Global Filtration Systems Apparatus and method for forming three-dimensional objects from solidifiable paste
US9975296B2 (en) 2014-02-10 2018-05-22 Global Filtration Systems Apparatus and method for forming three-dimensional objects from solidifiable paste
US9598606B2 (en) 2014-06-23 2017-03-21 Carbon, Inc. Methods of producing polyurethane three-dimensional objects from materials having multiple mechanisms of hardening
US9676963B2 (en) 2014-06-23 2017-06-13 Carbon, Inc. Methods of producing three-dimensional objects from materials having multiple mechanisms of hardening
US9453142B2 (en) 2014-06-23 2016-09-27 Carbon3D, Inc. Polyurethane resins having multiple mechanisms of hardening for use in producing three-dimensional objects
US9982164B2 (en) 2014-06-23 2018-05-29 Carbon, Inc. Polyurea resins having multiple mechanisms of hardening for use in producing three-dimensional objects
US9975295B2 (en) 2014-08-12 2018-05-22 Carbon, Inc. Acceleration of stereolithography
US10016938B2 (en) 2016-05-02 2018-07-10 Carbon, Inc. Continuous liquid interphase printing

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