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EP4584037A1 - Procédé et dispositif de production de micro-éléments et de micro-composants par fabrication additive par micro-fusion laser - Google Patents

Procédé et dispositif de production de micro-éléments et de micro-composants par fabrication additive par micro-fusion laser

Info

Publication number
EP4584037A1
EP4584037A1 EP24702036.5A EP24702036A EP4584037A1 EP 4584037 A1 EP4584037 A1 EP 4584037A1 EP 24702036 A EP24702036 A EP 24702036A EP 4584037 A1 EP4584037 A1 EP 4584037A1
Authority
EP
European Patent Office
Prior art keywords
powder
substrate
powder reservoir
force
powdery
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.)
Pending
Application number
EP24702036.5A
Other languages
German (de)
English (en)
Inventor
Mario SCHNECK
Joachim Göbner
Thomas Starke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3d Microprint GmbH
Original Assignee
3d Microprint GmbH
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 3d Microprint GmbH filed Critical 3d Microprint GmbH
Publication of EP4584037A1 publication Critical patent/EP4584037A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/34—Process control of powder characteristics, e.g. density, oxidation or flowability
    • 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
    • B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B22F12/52—Hoppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/009—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine components other than turbine blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/04—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • 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
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/255—Enclosures for the building material, e.g. powder containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • Micro Laser Sintering is a powder bed-based additive manufacturing technology often referred to as Selective Laser Sintering or Selective Laser Melting. Micro Laser Sintering is an industrial technology that provides micro metal parts for various industries.
  • Laser sintering is a process in which plastic or metal powder is completely melted layer by layer using a laser beam without the use of binders and, after the melt has solidified, a homogeneous material of high density is created.
  • the parts are used in all industries that require small metal parts with high accuracy, smooth surface finish, excellent detail resolution and complex shapes
  • Current main industries are medicine, semiconductors, mechanical engineering, aerospace, energy and chemicals as well as jewelry and watches.
  • CN 113458421 A discloses a plant system and a method for improving the quality of a powder bed in an additive manufacturing process.
  • the plant system comprises a spatially displaceable powder scattering device and an excitation unit, wherein the scattering device is arranged for applying one or more powder layers on a processing plane to a substrate platform or a powder bed processed with the plant system.
  • the excitation unit is arranged such that it breaks up clusters and/or adhesions between particles of the individual powder and/or between particles of the individual powder and a powder bed that has been treated with the plant system, so that the powder scattering device can apply a smooth powder layer to the substrate platform and/or the previous powder layer/bed.
  • Powder accumulations are broken down by introducing vibrations that can be generated pneumatically, electromagnetically or by introducing ultrasound.
  • the publication DE 10 2016 107 769 A1 concerns additive manufacturing and handling mechanisms for additive manufacturing.
  • the particle size is not discussed here and it is not disclosed that an agglomerating powder is used. This solution is intended to recover powder.
  • the publication DE 10 2017 124 047 A1 discloses a composition for use in additive manufacturing processes in which an anti-agglomeration agent is used to prevent agglomeration of the powder used.
  • an anti-agglomeration agent is used to prevent agglomeration of the powder used.
  • This requires increased effort and these agents can change the chemical composition of the materials used.
  • This can be an exclusion criterion, especially in the medical device sector.
  • Devices that remain in the body for a long time and, of course, implants are critical.
  • these additives can burn or evaporate completely or partially when the metal powder is melted during the additive process. This can lead to defects, cavities or blowholes in the material structure of the component. There is a risk of deterioration in the mechanical, chemical and electrical properties of the components.
  • the invention is therefore based on the object of providing microparts and microcomponents which have an improved quality compared to the prior art, in particular when using an agglomerating powder with a small particle size.
  • the object is solved by the features of independent patent claim 1 and by the features of independent patent claim 10. Further expedient embodiments of the invention are the subject of the dependent patent claims.
  • the force with which the powdered material is acted upon can, for example, be provided mechanically by means of spring force and/or by electric motor and/or by means of pneumatics and/or hydraulics.
  • the powdery material is kept in a second powder reservoir, from which it is conveyed and/or pressed into the first powder reservoir.
  • the powdery material is pre-compacted in the second powder reservoir and is then further compacted in the first powder reservoir.
  • a first force always acts, particularly vertically downwards in the direction of the substrate and the base plate.
  • This first force is constant.
  • the constant first force acts when driving over the base plate and the substrate and preferably also when filling the first reservoir.
  • the first force is intended to ensure that the agglomerating material behaves like a fluid, particularly when applied to the substrate and the other layers already melted and solidified above the substrate.
  • a counterforce is applied at the same time as the compaction force in order to ensure uniform compaction.
  • the counterforce can be provided, for example, by a horizontal base plate over which the first powder reservoir is moved before the first powder layer is applied.
  • the micro part or the micro component is separated from the substrate.
  • the separation is preferably carried out by wire erosion.
  • any component residues remaining on the substrate after wire erosion are ground off and the substrate surface is structured.
  • the substrate is structured before the powdered material is applied in such a way that the structure of the substrate surface is essentially adapted to the particle size of the powdered material. It can be provided that the structuring has depressions whose size corresponds to 0.5 to eight times the particle size of the powdered material. Advantageously, the individual particles of the powdered material remain in the depressions, which ensures that the powdered material adheres to the substrate surface.
  • a metallic material is preferably used as the powdered material.
  • a ceramic powder can be used.
  • stainless steel and/or titanium are used as powdered materials.
  • the particle size of the agglomerating powdered material is a maximum of 20 p.m.
  • the means for generating the axial force is preferably a piston, the dimensions of which completely or almost completely cover the cross-section of the interior of the first powder reservoir.
  • the force transmitted to the powdery material by the means for generating the axial force can be provided mechanically by means of a spring and/or electrically and/or pneumatically and/or hydraulically.
  • the first powder reservoir has a measuring device in its interior with which the amount of powdery material present in the first powder reservoir can be determined.
  • the device has a substrate arranged below the processing plane for receiving a first powder layer.
  • the substrate preferably has a substrate surface which acts, for example, like the surface of the agglomerating powdery material.
  • a substrate surface which acts, for example, like the surface of the agglomerating powdery material.
  • forces act between the substrate surface and the powdery material so that the applied powdery material remains fully on the substrate surface.
  • the structure of the substrate surface has depressions whose size corresponds to 0.5 times to eight times the particle size of the powdered material.
  • the individual particles of the powdered material advantageously remain in the depressions of the substrate surface, which ensures that the powdered material reliably adheres to the substrate surface as the first layer.
  • the device according to the invention further comprises a second powder reservoir arranged below the processing plane with an interior for receiving a powdery material, wherein the second powder reservoir is designed to be open in the direction of the processing plane and wherein the second powder reservoir has in its interior second means for generating an axial force acting in the direction of the processing plane on the powdery material located in the interior and is intended to fill the first powder reservoir.
  • the second powder reservoir is preferably designed in the form of a cartridge pre-filled with powder, the lower base of which can be displaced by motor in the direction of the first powder reservoir with the second force.
  • the base plate exerts a counterforce to the axial force exerted by the axial force generating means arranged in the first powder reservoir.
  • the base plate is at least partially interrupted in a process area above the substrate.
  • the interruption of the base plate above the substrate makes it possible for the powdered material to be applied from the first powder reservoir to the substrate surface.
  • the base plate is at least partially interrupted in a filling area above the second powder reservoir.
  • the interruption in a filling area makes it possible for the powdery material to be pressed from the second powder reservoir arranged below the filling area into the first powder reservoir located above the filling area.
  • the first and second powder reservoirs preferably have the same opening area, via which the respective interior of the first and second powder reservoirs is open to the interruption in the base plate in the filling area.
  • the device preferably has a laser for melting the first powder layer and/or further powder layers. It can also be provided that the surface of the substrate is structured by means of the laser.
  • the laser is preferably an infrared fiber laser. The laser beam is deflected in a known manner via one or more mirrors.
  • the invention advantageously makes use of the powder's inherent forces, which are also responsible for the generally undesirable agglomeration/clumping.
  • the otherwise disruptive powder-inherent forces are overcome by introducing energy into the powdery material.
  • Figure 5 Application of a further layer of powder with the substrate lowered
  • Figure 6 a device for unidirectional application of the powder with a one-sided recess in the base plate
  • Figure 9 shows a device for bidirectional application of the powder with barriers on two strips on the top of the base plate and on both sides of the substrate.
  • Figure 10 inclined first powder reservoir.
  • Figure 1 shows the process steps for producing a component according to the state of the art.
  • a three-dimensional CAD model M of the product was created, from which a component is then produced by additive manufacturing using micro laser sintering.
  • a powder reservoir 2' in which fine-grained powdery material T is located, moves in a first step according to illustration A over the surface of a substrate 3', to which a thin layer of powder adheres.
  • step B the powdery material T on the substrate is melted at the positions at which it is to solidify using a laser beam 4'.
  • step C the substrate 3' is lowered by the amount of the next layer thickness to be produced.
  • a further layer of the material T is applied to the first layer using the powder reservoir 2', which moves horizontally over the already solidified layer, and then this layer is also melted using the laser beam 4' and thereby solidified (not shown).
  • the substrate 3' is then lowered again ( Figure D) and coated again with the powdered material T, etc., until the component B is completed according to the CAD model M as shown in Figure E by micro laser sintering using the laser beam 4'. Any powder that has not melted is removed.
  • Figure F shows the finished component B, which has been separated from the substrate.
  • Figure 2 shows a schematic representation of a first step of the method according to the invention, carried out on a device according to the invention.
  • the device has a base plate 5 with a top side 5a, a first powder reservoir 2 arranged above the top side 5a and a second powder reservoir 7 arranged below the top side 5a.
  • both the first powder reservoir 2 and the second powder reservoir 7, which is preferably provided as a prefilled cartridge, are located in a filling area 200 of the device, in which the base plate 5 has an undesignated interruption.
  • first means 6 for generating an axial force F1, by means of which the powdery material 1 in the interior of the first powder reservoir 2 is subjected to an axial force F1 in the direction of the base plate 5.
  • a powdery material 1 which is subjected to a second axial force F2 acting in the direction of the first powder reservoir 2 by a second means 8 for generating it, indicated in the figures by an arrow.
  • the second means 8 for generating a second axial force F2 is in the embodiment shown a piston, which can also be the base of the cartridge (which forms the second reservoir 7), for example, which is axially adjustable within the peripheral wall (not designated) in the direction of the first reservoir 2.
  • the powdery material 1 is thus conveyed from the second reservoir 7 into the interior of the first powder reservoir 2 and compressed therein.
  • both the first powder reservoir 2 and the second powder reservoir 7 are open towards the base plate 5 in the filling area 200, the powdery material 1 is pressed into the interior of the first powder reservoir 2 if F2 is greater than F1.
  • the substrate upper side 3a preferably has a surface finish that ensures that the first powder layer S1 of the powdery material 1 remains in place over the entire surface.
  • the first powder layer S1 applied to the substrate 3 from the powdery material 1 is selectively melted by means of the laser beam 4 of the laser 4.1 and its deflection by means of the scanner 4.2 at the positions that are to be solidified, whereby after cooling, a solid laser-sintered metal layer 1.1 is formed at least in some regions (see Figure 4).
  • the substrate 3 is now lowered according to the required layer thickness of the next powder layer to be produced (see Figure 5) and a further powder layer, here a second powder layer S2 made of the powdery material 1, is applied to the first layer S1 by an axial movement (dashed arrow) of the first powder reservoir 2, whereby the force F1 also acts.
  • the top side 2a of the second powder layer S2 now forms the new processing level.
  • the second layer S2 is then partially melted so that a solid laser-sintered metal layer is formed at least in some areas.
  • the powdery material 1 located in the first powder reservoir 2 is preferably further compressed by the first means 6 for generating an axial force F1 and is subjected to the constant force F1 in the direction of the base plate 5 and the substrate 3 or the applied laser-sintered layer.
  • the base plate 5 is preferably designed in such a way that no or almost no powdery material 1 remains on the base plate 5 while the first powder reservoir 2 is moving over it.
  • the laser 4.1 is preferably a fiber laser.
  • an infrared laser or a laser with a different wavelength is used.
  • another energy source is also possible, for example electron beams or beams emitted by LEDs.
  • Figure 6 shows a variant of the device according to the invention, in which the base plate 5 has a recess 5.1 next to the substrate 3 in the application direction (arrow direction), through which a barrier B is formed. This prevents the powder from being applied beyond the upper side 5a of the base plate 5.
  • the upper side 1a is also preferably located 20 p.m to 200 p.m above the upper side 5a of the substrate 3.
  • the powder 1 is applied bidirectionally by means of the first reservoir 2, ie alternately moving back and forth in the direction of the dashed arrows.
  • the strips L When using, for example, strips L with barrier B as shown in Figures 8 and 9, it is possible to arrange the strips L so that they can be adjusted towards and away from the substrate 3, as indicated by the arrows.
  • This variable arrangement of the barrier(s) B makes it possible to adapt the distance of the barrier B from the substrate 3 to the coating properties of the powder 1 or the agglomerating properties of the powder 1.
  • the powdered material is applied in one direction with a greater height and then removed in the opposite direction to the desired height h.
  • the application of the powdered material 1 takes place unidirectionally, here from left to right, and the removal from right to left.
  • the powder reservoir 2 has a first doctor blade 9 with a lower edge 9.1 in the application direction and, opposite thereto in a withdrawal direction (arrow direction), a second doctor blade 10 with a lower edge 10.1, wherein the lower edge 9.1 of the first doctor blade 9 has a smaller distance to the upper side 5a of the base plate 5 than the lower edge 10.1 of the second doctor blade 10.
  • the layer thickness of the respective equalized layer S1, S2... etc. before laser processing is preferably one to four times the particle size of the powder 1.
  • Process area 200 Filling area B Barrier F1 first axial force F2 second axial force L Bar

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Powder Metallurgy (AREA)

Abstract

L'invention concerne un procédé et un dispositif de production de micro-éléments et de micro-composants par fabrication additive par micro-fusion laser, un matériau (1) agglomérant pulvérulent étant appliqué par couches à partir d'un premier réservoir de poudre (2) et étant fondu après l'application au moyen d'un faisceau laser (4), caractérisée en ce que le matériau (1) se trouvant dans le premier réservoir de poudre (2) ouvert en direction d'un plan d'usinage est une poudre agglomérante dont la grandeur de particule (1) maximale est égale à 20 p. m et en ce que le matériau (1) agglomérant est soumis, au moins pendant l'application dans une zone de traitement (100), à une force (F1) en direction d'un substrat (3), grâce à laquelle le matériau (1) agglomérant se comporte à la manière d'un fluide lors de l'application. À cet effet, le dispositif comprend une plaque de base (5) orientée horizontalement qui est interrompue au moins par endroits dans une zone de traitement (100) au-dessus d'un substrat (3) et possède un premier réservoir de poudre (2) disposé au-dessus de la plaque de base (5), pouvant être déplacé horizontalement au-dessus de la plaque de base (5) et comportant un espace intérieur destiné à accueillir un matériau (1) agglomérant pulvérulent dont la grandeur de particule (1) maximale est égale à 20 p.m, le premier réservoir de poudre (2) comportant dans son espace intérieur des premiers moyens (6) pour générer une première force (F1) axiale agissant en direction de la plaque de base (5) et du substrat (3) sur le matériau (1) agglomérant pulvérulent se trouvant dans l'espace intérieur, grâce à laquelle le matériau (1) agglomérant se comporte à la manière d'un fluide au moins lors de l'application dans la zone de traitement (100).
EP24702036.5A 2023-01-05 2024-01-02 Procédé et dispositif de production de micro-éléments et de micro-composants par fabrication additive par micro-fusion laser Pending EP4584037A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023000212.7A DE102023000212A1 (de) 2023-01-05 2023-01-05 Verfahren und Vorrichtung zur Herstellung von Mikrobauteilen und Mikrokomponenten durch additive Fertigung mittels Mikro Laser Sintern
PCT/DE2024/100000 WO2024146672A1 (fr) 2023-01-05 2024-01-02 Procédé et dispositif de production de micro-éléments et de micro-composants par fabrication additive par micro-fusion laser

Publications (1)

Publication Number Publication Date
EP4584037A1 true EP4584037A1 (fr) 2025-07-16

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EP24702036.5A Pending EP4584037A1 (fr) 2023-01-05 2024-01-02 Procédé et dispositif de production de micro-éléments et de micro-composants par fabrication additive par micro-fusion laser

Country Status (4)

Country Link
EP (1) EP4584037A1 (fr)
KR (1) KR20250133647A (fr)
DE (1) DE102023000212A1 (fr)
WO (1) WO2024146672A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024121424B3 (de) * 2024-07-26 2025-06-18 Deutsches Zentrum für Luft- und Raumfahrt e.V. Vorrichtung und Verfahren für pulverbettbasierte additive Fertigungsprozesse mittels Induktion

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Publication number Priority date Publication date Assignee Title
DE202008017990U1 (de) * 2007-05-30 2011-02-10 Panasonic Electric Works Co., Ltd., Kadoma-shi Laminier-Formgebungsvorrichtung
US10391556B2 (en) * 2015-04-28 2019-08-27 General Electric Company Powder transfer apparatus and method for additive manufacturing
DE102016202696B4 (de) 2016-02-22 2020-03-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur additiven Herstellung von dreidimensionalen Bauteilen
EP3292989A1 (fr) 2016-09-12 2018-03-14 Linde Aktiengesellschaft Procede de fabrication generative de composants
US20190217387A1 (en) 2016-09-27 2019-07-18 The Curators Of The University Of Missouri Confining material during additive manufacturing processes
DE102017124047A1 (de) 2017-10-16 2019-04-18 Eos Gmbh Electro Optical Systems Zusammensetzung zur Verwendung in additiven Fertigungsprozessen
EP3865229A1 (fr) * 2020-02-11 2021-08-18 Heraeus Additive Manufacturing GmbH Système de fabrication destiné à l'application couche par couche d'un matériau pulvérulent sur une plateforme de construction
DE102020004503A1 (de) 2020-07-24 2022-01-27 Aixway3D GmbH Vorrichtung und Verfahren zum verbesserten Pulverauftrag in einem additiven Herstellungsverfahren

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WO2024146672A1 (fr) 2024-07-11
KR20250133647A (ko) 2025-09-08
DE102023000212A1 (de) 2024-07-11

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