WO2016063198A1 - Appareil et procédé de fabrication additive d'objets tridimensionnels - Google Patents

Appareil et procédé de fabrication additive d'objets tridimensionnels Download PDF

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Publication number
WO2016063198A1
WO2016063198A1 PCT/IB2015/058033 IB2015058033W WO2016063198A1 WO 2016063198 A1 WO2016063198 A1 WO 2016063198A1 IB 2015058033 W IB2015058033 W IB 2015058033W WO 2016063198 A1 WO2016063198 A1 WO 2016063198A1
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WO
WIPO (PCT)
Prior art keywords
radiant heating
heating devices
radiation
board
temperature
Prior art date
Application number
PCT/IB2015/058033
Other languages
English (en)
Inventor
Tommaso BECCUTI
Original Assignee
Industrie Additive S.R.L.
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
Application filed by Industrie Additive S.R.L. filed Critical Industrie Additive S.R.L.
Publication of WO2016063198A1 publication Critical patent/WO2016063198A1/fr

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Classifications

    • 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
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • 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
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—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
    • B33Y10/00—Processes of additive manufacturing
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/02—Small extruding apparatus, e.g. handheld, toy or laboratory extruders
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
    • B29C48/2528—Drive or actuation means for non-plasticising purposes, e.g. dosing unit
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/91—Heating, e.g. for cross linking

Definitions

  • the present invention relates to an apparatus and a method for manufacturing three- dimensional objects by the so-called additive manufacturing technology, and more specifi- cally to an apparatus and a method for additive manufacturing of three-dimensional objects by fused deposition modeling.
  • the fused deposition modeling technique typically referred to with the acronym FDM, consists in producing the three-dimensional object by deposition of construction material (typically thermoplastic material or metal) which is conveyed at the solid state to an extrusion head, heated at least up to the melting point and then deposited onto a board by virtue of the coordinated movement of the extrusion head and/or of the board in the space.
  • construction material typically thermoplastic material or metal
  • Apparatuses and methods for manufacturing three-dimensional objects by means of the fused deposition modeling technique are known for example from US 4,749,347 and US 5,340,433. This technique is traditionally associated to polymeric materials, which are still the most important ones in the market of the additive manufacturing apparatuses, but has recently been used also for producing metal parts.
  • WO 92/08566 discloses an apparatus for additive manufacturing of three-dimensional objects by means of the selective laser sintering technique (usually referred to with the acronym SLS), in which a radiant heater of annular shape is arranged to heat only the upper surface of the object being manufactured in a substantially homogeneous manner, i.e. with a substantially uniform density of radiant energy per surface unit.
  • SLS selective laser sintering technique
  • Such a known solution therefore, relates to an additive manufacturing technique different from that of the present invention and, furthermore, as will be clear from the following description, heats the object being manufactured in a substantially different way with respect to the present invention and hence requires an arrangement of the radiant heater (or heaters) different from the one provided for by the present invention.
  • Another example of an apparatus for additive manufacturing of three-dimensional objects by means of the selective laser sintering technique is known from EP 2 340 925.
  • An apparatus for additive manufacturing of three-dimensional objects by fused deposition modeling according to the preamble of the enclosed independent claim 1 is known from DE 44 22 146.
  • the apparatus known from this prior art document comprises a plurality of radiant heating devices which are mounted in a fixed position on the structure of the appa- ratus and are adapted to heat the whole exposed surface of the object.
  • This prior art document does neither mention nor suggest the possibility of changing the orientation, and hence the position of the radiating source, represented in this case by the radiant heating devices.
  • An apparatus such as the one disclosed in document DE 44 22 146 is not for ex- ample suitable for heating objects extending over a wide surface, given the impossibility to control the temperature of the whole exposed surface of the object without the use of a plurality of radiating sources - with clear negative consequences on the efficiency of the process.
  • the invention is based on the idea of providing orientation adjusting means for adjusting the spatial orientation, and hence the position, of the radiation generated by the radiant heating devices. This allows to heat the object in a dynamic, targeted and differentiated manner, in particular - if necessary - with different heating levels in the various areas of the exposed surface of the object. Moreover, thanks for example to the possibility of moving the radiant heating devices in the three directions, in particular in the horizontal plane, the apparatus according to the invention is able to work also with large-sized objects acting dynamically on the heating cycle, heating in a targeted manner the entire exposed surface of the object, or part thereof, depending on the specific requirements.
  • Figure 1 is a perspective view of an apparatus for additive manufacturing of three- dimensional objects by means of the fused deposition modeling technique according to an embodiment of the present invention
  • Figure 2 is a perspective view from below of the extrusion head of the apparatus of
  • Figure 3 is a perspective view of a radiant heating device provided with deflectors that can be used in an apparatus according to the invention
  • Figure 4 shows further examples of radiant heating devices, differing from one an- other in their shape, which can be used in an apparatus according to the invention.
  • Figure 5 shows an example of a guide system for moving the radiant heating devices in an apparatus according to the invention.
  • an apparatus for additive manufacturing of three- dimensional objects by fused deposition modeling is generally indicated 10.
  • the apparatus 10 comprises an extrusion head 12 arranged to dispense the construction material in fused state through a nozzle 14 (which can be seen in Figure 2) and a board 16 on which the fused material (which may be for example polymeric material or metal) dispensed by the nozzle 14 is deposited and on which the three-dimensional object (not shown) is thus formed layer by layer.
  • the extrusion head 12 and the board 16 are movable in the space relative to one another to allow deposition of the material along a given three-dimensional path that is programmed depending on the geometry of the object to be manufactured.
  • the apparatus 10 comprises driving means arranged to move the extrusion head 12 and/or the board 16.
  • driving means used on apparatuses for additive manufacturing of three-dimensional objects are robotic arms, Cartesian kinematics driving systems and inverse kinematics driving systems.
  • the extrusion head 12 is movable in the three directions, and more specifically is driven by an inverse kinematics driving system comprising - in per-se-known manner - three pairs of rods 18a, 18b, 18c, wherein each pair of rods 18a, 18b, 18c is hinged at one end to the extrusion head 12 and at the other end to a respective carriage 20a, 20b, 20c slidably mounted along a respective vertical guide 22a, 22b, 22c.
  • the inverse kinematics driving system illustrated herein is only one of the various examples of driving systems that can be used in an apparatus according to the invention and does not therefore constitute an essential feature of the invention.
  • the apparatus 10 In order to heat the object during and/or after the manufacturing process, the apparatus 10 according to the invention is provided with radiant heating devices which are arranged to emit a radiation with a variable spatial orientation so as to enable to heat any exposed sur- face of the object without requiring direct contact with the same.
  • the radiant heating devices are infrared radiant heaters that emit an infrared radiation (with a wavelength smaller than 100 ⁇ ) to generate heat in the object hit by the radiation.
  • the radiant heating devices are preferably arranged to emit radiations with a wavelength smaller than 10 ⁇ . More specifically, infrared radiant heaters with so- called “long” wavelengths (4 to 10 ⁇ ) are used to heat materials having melting points lower than 750°C approximately (such as, for example, thermoplastic materials, low- melting metal alloys and aluminium alloys), while infrared radiant heaters with so-called “short” (1 to 2 ⁇ ) or “medium” (2 to 4 ⁇ ) wavelengths are used to heat metals.
  • the radiant heating devices may be positioned in different points of the apparatus.
  • the apparatus shown in Figure 1 for example, comprises a first set of radiant heating devices, in- dicated 24', which are positioned inside the working area of the apparatus (that is to say, approximately inside the volume delimited by the vertical guides 22a, 22b and 22c), a second set of radiant heating devices, indicated 24", which are positioned outside the working area of the apparatus, a third set of radiant heating devices, indicated 24"', which are posi- tioned on the extrusion head 12, and/or a fourth set of radiant heating devices, indicated 24a, 24b and 24c, which are positioned on the vertical guides 22a, 22b and 22c.
  • the radiant heating devices to be used on the apparatus 10 may have different geometries, and hence lead to different diffusions of the radiation.
  • the radiant heating devices may be convex (if a non-focussed heating is to be obtained), concave (if, on the other hand, a focussed heating is to be obtained), flat, etc.
  • the apparatus 10 is arranged to allow to adjust one by one, in manual or automatic mode, the spatial orientation of each radiant heating device.
  • the radiant heating devices may be mounted for example so as to be orientable by means of special joints and be adjusted manually, in servo-assisted mode by means of special actuators operated on the basis of commands imparted by the user via special control members or, furthermore, in automatic mode under control of automatic adjusting means.
  • deflectors 26 which may be made as heat-absorbing or heat- reflecting deflectors, such deflectors being mounted on the radiant heating devices (see Figures 2 and 3) so as to be orientable and being also movable manually, in servo-assisted mode or in automatic mode.
  • the apparatus 10 may be provided with a guide system comprising for example horizontal guide bars 28, along which the radiant heating devices (in this case, the radiant heating devices 24") are slidably guided, and vertical guide bars 30, along which the horizontal guide bars 28 are slidably guided.
  • the radiant heating devices 24" can be moved both in the horizontal plane and in the vertical direction.
  • the apparatus 10 is also arranged to allow to adjust individually, in manual or automatic mode, the intensity of the radiation produced by each radiant heating device, in order to improve the control of the temperature of the object and, if necessary, to keep different temperature levels on the various exposed surfaces of the same.
  • the apparatus may be provided with switches, potentiometers or other manual adjusting mem- bers, of per-se-known type, to adjust manually the intensity of the radiation of each single radiant heating device and/or set of radiant heating devices.
  • the apparatus may be provided with automatic adjusting means to adjust automatically the intensity of the radiation of each single radiant heating device and/or set of radiant heating devices, for example with temperature-feedback control.
  • the radiant heating devices may be used before, during and/or after the manufacturing process. Before the manufacturing process they may be used to heat the board 16. During the manufacturing process they have the function of keeping the temperature of the object being manufactured under control. Finally, once the manufacturing process has been com- pleted, they may remain in operation and then be progressively switched off, so as to control the cooling of the object that has just been produced to prevent the physical phenomena described in the introductory part of the description from occurring.
  • the apparatus 10 is also provided with temperature measuring means, of per-se- known type, for measuring the temperature in various areas of the surface of the object exposed to the radiation.
  • temperature measuring means may be for example infrared thermometers, thermocouples, etc.
  • the measures of the temperature provided by the temperature measuring means may be read by the user (for example on a display on board of the apparatus or by software) to enable him to suitably adjust the radiation (intensity and orientation of the radiation emitted by the radiant heating devices).
  • the apparatus 10 is preferably provided with shielding means (not shown, as they are of per-se-known type) for shielding all those components of the apparatus that would be otherwise exposed to, and might be damaged by, the radiation.
  • the extrusion head 12 and the relating driving system (rods 18a, 18b, 18c, carriages 20a, 20b, 20c and guide 22a, 22b, 22c) will advantageously be shielded.
  • Special absorbing, shielding and/or reflecting materials may be used for example as shielding means.
  • the operation of the above-described apparatus provides therefore for the radiant heating devices to be suitably controlled (in terms of direction of the radiation, as well as of intensity, if necessary) to emit a radiation over the whole exposed surface, or at least part thereof, of the object being manufactured so as to keep its temperature under control during the manufacturing process and, once the manufacturing process has been completed, to control cooling of the object just produced.
  • the radiant heating devices may also be used, if necessary, to heat the board 16 on which the construction material will be deposited, even before the manufacturing process has been started.
  • the apparatus and method for additive manufacturing of three-dimensional objects by fused deposition modeling according to the invention allow to generate heat in the object, both during and after the manufacturing process, without the need to use air or gas as heat transmission means and therefore without the need to close the working area, with evident advantages in terms of lower cost and complexity of the apparatus and higher efficiency of the method.
  • an apparatus according to the invention makes it possible to heat in a differentiated and dynamic manner the various areas of the exposed surface of the object, even in case of large-sized objects, in particular objects extending over a wide surface, and hence to control the process more effectively, which clearly results in improved quality of the final product and increased efficiency of the process.
  • it is no more necessary to provide many radiation sources which is clearly advantageous in terms of costs.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

L'invention concerne un appareil (10) et un procédé de fabrication additive d'objets tridimensionnels au moyen d'un modelage par dépôt en fusion, comprenant un plateau (16), une tête d'extrusion (12) agencée pour distribuer du matériau de construction à l'état fondu et pour le déposer sur le plateau (16), des moyens d'entraînement (18a, 18b, 18c, 20a, 20b, 20c, 22a, 22b, 22c) agencés pour positionner de manière appropriée la tête d'extrusion (12) et le plateau (16) dans l'espace l'un par rapport à l'autre par le déplacement de la tête d'extrusion (12) et/ou du plateau (16), des dispositifs de chauffage par rayonnement (24', 24", 24"', 24a, 24b, 24c) agencés de façon à chauffer la surface découverte de l'objet, à la fois pendant le processus de fabrication et une fois que le processus de fabrication est terminé, et des moyens à commande manuelle - ou automatique - d'ajustement de l'orientation pour ajuster l'orientation spatiale du rayonnement émis par chacun desdits dispositifs de chauffage par rayonnement (24', 24", 24"', 24a, 24b, 24c).
PCT/IB2015/058033 2014-10-20 2015-10-19 Appareil et procédé de fabrication additive d'objets tridimensionnels WO2016063198A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2014A000851 2014-10-20
ITTO20140851 2014-10-20

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WO2016063198A1 true WO2016063198A1 (fr) 2016-04-28

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
ITUA20165142A1 (it) * 2016-06-23 2017-12-23 Clevertek Di Turchi Maximilian E Brugnoli Satu Susanna Sistema di riscaldamento per unita' di stampa di oggetti tridimensionali
RU2654313C1 (ru) * 2017-05-04 2018-05-17 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский университет "Московский институт электронной техники" Способ формирования трехмерных структур топологических элементов функциональных слоев на поверхности подложек
DE102017122849A1 (de) 2017-10-02 2019-04-04 Stefan Fischer Fluidversorgungssystem für einen 3D-Drucker
WO2019086379A1 (fr) * 2017-11-02 2019-05-09 Value & Intellectual Properties Management Gmbh Procédé d'impression métallique 3d et dispositif pour un tel procédé
EP3782799A1 (fr) 2019-08-20 2021-02-24 Kumovis GmbH Élément inférieur pour un système de fabrication additive et système de fabrication additive
WO2021032420A1 (fr) 2019-08-20 2021-02-25 Kumovis GmbH Tête d'impression pour un système de fabrication additive, et système de fabrication additive
WO2021032410A1 (fr) 2019-08-20 2021-02-25 Kumovis GmbH Système de positionnement pour un système de fabrication additive, et système de fabrication additive
DE102020126764A1 (de) 2020-10-12 2022-04-14 Kumovis GmbH Additive fertigungseinrichtung, verfahren sowie medizinprodukt hierzu
WO2022112247A1 (fr) * 2020-11-28 2022-06-02 Hans Weber Maschinenfabrik Gmbh Système pour fabriquer par extrusion au moins un objet tridimensionnel
DE102021129750A1 (de) 2021-11-15 2023-05-17 Kumovis GmbH Verfahren zur Herstellung eines Bauteils sowie Bauteil
US11760027B2 (en) 2018-07-31 2023-09-19 Hewlett-Packard Development Company, L.P. Temperature control in additive manufacturing systems
WO2023235959A1 (fr) * 2022-06-07 2023-12-14 Coalia Dispositif d'émission de radiation pour un appareil de fabrication additive

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US4749347A (en) 1985-08-29 1988-06-07 Viljo Valavaara Topology fabrication apparatus
WO1992008566A1 (fr) 1990-11-09 1992-05-29 Dtm Corporation Appareil de frittage selectif au laser a chauffe radiante
US5340433A (en) 1989-10-30 1994-08-23 Stratasys, Inc. Modeling apparatus for three-dimensional objects
DE4422146A1 (de) 1994-06-27 1996-01-04 Bernhard Merkert Verfahren und Einrichtung zum Aufbauen eines Werkstücks mit thermoplastischem Kunststoff durch Auftrag-Extrusionsschweißen
US5866058A (en) 1997-05-29 1999-02-02 Stratasys Inc. Method for rapid prototyping of solid models
US20020113331A1 (en) * 2000-12-20 2002-08-22 Tan Zhang Freeform fabrication method using extrusion of non-cross-linking reactive prepolymers
US6722872B1 (en) 1999-06-23 2004-04-20 Stratasys, Inc. High temperature modeling apparatus
EP2340925A1 (fr) 2010-01-05 2011-07-06 EOS GmbH Electro Optical Systems Dispositif de fabrication générative d'un objet tridimensionnel doté d'une amenée de chaleur en continu
US20140117575A1 (en) * 2012-10-29 2014-05-01 Makerbot Industries, Llc Three-dimensional printer with force detection

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Publication number Priority date Publication date Assignee Title
US4749347A (en) 1985-08-29 1988-06-07 Viljo Valavaara Topology fabrication apparatus
US5340433A (en) 1989-10-30 1994-08-23 Stratasys, Inc. Modeling apparatus for three-dimensional objects
WO1992008566A1 (fr) 1990-11-09 1992-05-29 Dtm Corporation Appareil de frittage selectif au laser a chauffe radiante
DE4422146A1 (de) 1994-06-27 1996-01-04 Bernhard Merkert Verfahren und Einrichtung zum Aufbauen eines Werkstücks mit thermoplastischem Kunststoff durch Auftrag-Extrusionsschweißen
US5866058A (en) 1997-05-29 1999-02-02 Stratasys Inc. Method for rapid prototyping of solid models
US6722872B1 (en) 1999-06-23 2004-04-20 Stratasys, Inc. High temperature modeling apparatus
US20020113331A1 (en) * 2000-12-20 2002-08-22 Tan Zhang Freeform fabrication method using extrusion of non-cross-linking reactive prepolymers
EP2340925A1 (fr) 2010-01-05 2011-07-06 EOS GmbH Electro Optical Systems Dispositif de fabrication générative d'un objet tridimensionnel doté d'une amenée de chaleur en continu
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