EP4237177A1 - Plaque de substrat pour récipient interchangeable, récipient interchangeable et procédé et appareil pour déballer un objet tridimensionnel produit sur une plaque de substrat ou dans le récipient interchangeable par solidification sélective d'un matériau de construction sous forme de poudre - Google Patents

Plaque de substrat pour récipient interchangeable, récipient interchangeable et procédé et appareil pour déballer un objet tridimensionnel produit sur une plaque de substrat ou dans le récipient interchangeable par solidification sélective d'un matériau de construction sous forme de poudre

Info

Publication number
EP4237177A1
EP4237177A1 EP21791316.9A EP21791316A EP4237177A1 EP 4237177 A1 EP4237177 A1 EP 4237177A1 EP 21791316 A EP21791316 A EP 21791316A EP 4237177 A1 EP4237177 A1 EP 4237177A1
Authority
EP
European Patent Office
Prior art keywords
substrate plate
dimensional object
actuator
interchangeable container
transmission element
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
EP21791316.9A
Other languages
German (de)
English (en)
Inventor
Daniel GIEK
Wolfgang Laib
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.)
Trumpf Laser und Systemtechnik SE
Original Assignee
Trumpf Laser und Systemtechnik 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 Trumpf Laser und Systemtechnik GmbH filed Critical Trumpf Laser und Systemtechnik GmbH
Publication of EP4237177A1 publication Critical patent/EP4237177A1/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
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
    • B08B7/026—Using sound waves
    • B08B7/028—Using ultrasounds
    • 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
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/68—Cleaning or washing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/30—Platforms or substrates
    • 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
    • B22F12/38—Housings, e.g. machine housings
    • 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
    • B29C64/245—Platforms or substrates
    • 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
    • B29C64/259—Interchangeable
    • 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
    • B29C64/35—Cleaning
    • 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
    • B29C64/379—Handling of additively manufactured objects, e.g. using robots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—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
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—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
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/01—Reducing atmosphere
    • 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

  • the invention relates to a substrate plate and an interchangeable container for a device for the layered application and selective solidification of a powdered construction material for the production of a three-dimensional object. Furthermore, the invention relates to a method and a device for unpacking a substrate plate and a three-dimensional object produced in an interchangeable container by applying layers by selective solidification of a powdered construction material.
  • DE 10 2017 108 080 A1 discloses a method and a device for unpacking an object produced by applying it in layers. In a turning device, a swap body is positioned in an upright position. The swap body is then turned by the turning device into an emptying position for removing the unsolidified building material. The three-dimensional object is then unpacked, in that the construction material is removed from the interchangeable container by the force of its weight. The turning device is then returned to the starting position so that the swap body is in an upright position in order to remove it from the device for unpacking.
  • DE 10 2013 223 407 A1 discloses a device for unpacking a three-dimensional object produced in an interchangeable container by applying it in layers and selectively solidifying it from a powdered construction material.
  • the swap body is pushed into a rotating device.
  • the turning device is then turned into an emptying position, so that the opening of the swap body points downwards.
  • a vibration is applied to the interchangeable container from the outside.
  • the invention is based on the object of providing a substrate plate and an interchangeable container for a device for applying in layers and selectively solidifying a powdered construction material for the production of a three-dimensional object, as well as a method and a device for unpacking on a substrate plate and in an interchangeable container by applying in layers and selectively Propose solidification of a powdered construction material produced three-dimensional object, whereby an increased degree of purification is achieved.
  • a substrate plate in which an actuator that can be excited by a generator with vibrations is non-positively and/or positively connected to a substrate plate or to one with the Substrate plate related transmission element is connected.
  • This non-positive and/or positive connection between the actuator and the substrate plate or the transmission element makes it possible for the vibrations excited by the actuator to be coupled directly into the substrate plate or the transmission element.
  • This enables undamped transmission of the vibrations generated by the actuator to the substrate plate or the transmission element, resulting in improved depowdering of the building material still adhering to a rough surface of the three-dimensional object or in spaces between sections of the three-dimensional object.
  • the three-dimensional object does not have to be blown off via nozzles or the introduction of a fluidized bed.
  • the depowdering can reduce contamination of the environment during further handling of the three-dimensional object with non-solidified construction material.
  • the actuator is mechanically firmly connected to the substrate plate or the transmission element.
  • This mechanical connection is designed in such a way that the vibrations can be introduced directly into the substrate plate or into the transmission element.
  • a play-free fastening of a sound conductor of the actuator to the substrate plate or to the transmission element is preferably provided.
  • the actuator in particular a sound conductor of the actuator
  • the actuator is connected to the substrate plate or the transmission element by screwing, clamping or bracing.
  • a threaded hole can be provided in the substrate plate or the transmission element, into which the sound conductor of the actuator, which is preferably designed as a pin or plunger, can be screwed.
  • Tensioning by means of a clamping claw or clamping via wedge surfaces can also be possible.
  • the generator and the actuator are connected to one another with a high-frequency cable. As a result, the high-frequency vibrations generated by the generator, in particular ultrasonic vibrations, can be transmitted to the actuator, which couples these high-frequency vibrations to a sound conductor of the actuator, which is mechanically connected to the substrate plate or the transmission element.
  • the actuator can be excited with a high frequency in a range from 30 to 40 kHz. This high-frequency excitation enables a particularly good depowdering of the three-dimensional object.
  • an interchangeable container for a device for the layered application and selective solidification of a powdered construction material for the production of a three-dimensional object which comprises a construction cylinder in which a substrate plate on which the three-dimensional object is constructed can be moved up and down or in which the substrate plate, which is connected to a transmission element that points to the outside of the building cylinder, can be moved up and down together in the building cylinder, with at least one actuator on the substrate plate or on the actuator attached to the substrate plate, which can be excited by a generator with vibrations Transmission element non-positively and / or positively connected, in particular is connected.
  • the object on which the invention is based is also achieved by a method for unpacking a three-dimensional object produced on a substrate plate by layer-by-layer application and selective solidification of a powdered construction material from the unsolidified construction material surrounding the object, in which a substrate plate according to one of the previous embodiments is converted into a Turning device is used and is rotated from an upright working position into an emptying position for unpacking the three-dimensional object by the weight of the construction material and in which, after the three-dimensional object has been unpacked, the at least one actuator is excited to oscillate by the generator for depowdering the three-dimensional object and that after the three-dimensional object has been depowdered, the substrate plate is returned to an upright working position for removal from the interchangeable container.
  • the substrate plate or the transmission element which is preferably detachably connected to the substrate plate, is excited with an oscillation of 30 to 40 kHz.
  • This high-frequency vibration leads to particularly good depowdering of the three-dimensional component. Due to the direct coupling of the vibrations into the substrate plate or the transmission element connected to the substrate plate, on the one hand the excited vibration is introduced directly and on the other hand the at least one seal arranged on the substrate plate or on the transmission element to the structural cylinder of the swap body dampens or eliminated.
  • the at least one actuator after the introduction of the substrate plate in the turning device and the transfer of the substrate plate into the emptying position with the substrate plate or the with the substrate plate connected transmission element is non-positively and / or positively connected.
  • the object on which the invention is based is also achieved by a method for unpacking a three-dimensional object produced in a swap body by layer-by-layer application and selective solidification of a powdered building material from the unsolidified building material surrounding the object, in which a turning device is equipped with the swap body in which the turning device is rotated from an upright working position into an emptying position for unpacking the three-dimensional object by the weight of the construction material, with a substrate plate that can be moved up and down in a construction cylinder of the interchangeable container or a transmission element connected to the substrate plate, both of which can be moved up and down in the construction cylinder can be moved away, is connected to at least one actuator in a non-positive and/or positive manner, the at least one actuator for depowdering the three-dimensional object being caused to vibrate by the generator will rain.
  • the object on which the invention is based is also achieved by a device for unpacking a three-dimensional object produced on a substrate plate by layer-by-layer application and selective solidification of a powdered construction material, which has a turning device that picks up the substrate plate in an upright position and into an emptying position for removal of the unsolidified building material is transferred by its weight, the substrate plate being lifted up by the turning device and the at least one actuator is connected in a non-positive and/or positive manner to the substrate plate or to a transmission element provided on the substrate plate before or after the positioning of the substrate plate in the turning device, in particular after the transfer of the interchangeable container into the emptying position of the turning device, and after the unpacking of the three-dimensional object, ie after the removal of the unsolidified construction material by weight, can be controlled by the generator with vibrations for depowdering of the three-dimensional object.
  • the non-positive and/or positive connection of the at least one actuator to the substrate plate or to the transmission element connected to the substrate plate makes it possible for only a small mass to be excited for depowdering of the three-dimensional object.
  • the substrate plate acts as a transmitter of the directly coupled vibrations to the three-dimensional object, which is built directly on the substrate plate. The same applies to the direct coupling of the vibrations into the transmission element, which is connected to the substrate plate mechanically, for example, in particular by screw connections.
  • the object on which the invention is based is also achieved by a device for unpacking a three-dimensional object produced in a swap body by layer-by-layer application and selective solidification of a powdered building material from the unsolidified building material surrounding the object, in which a swap body inserted into a turning device is removed from an upright working position into an emptying position for unpacking the unsolidified building material by weight and in which a substrate plate that can be moved up and down in the construction cylinder of the interchangeable container or a transmission element connected to the substrate plate, which can be moved up and down in the construction cylinder together with the substrate plate, with at least one actuator can be connected in a non-positive and/or positive manner and the at least one actuator for depowdering of the three-dimensional object can be controlled by the generator with vibrations.
  • the vibrations can be coupled in directly via the actuator in order to achieve additional detachment of the construction material adhering to the three-dimensional object.
  • FIG. 1 shows a schematic sectional view of an interchangeable container with an actuator connected to a substrate plate
  • FIG. 2 shows a schematic sectional view of an interchangeable container with an actuator directly connected to a transmission element
  • FIG. 3 shows a schematic side view of a device for unpacking an interchangeable container in a first working position
  • FIG. 4 shows a schematic side view of the device according to FIG. 3 in a further working position.
  • FIG. 1 shows a schematic sectional view of an interchangeable container 11 .
  • This interchangeable container 11 is used in a laser sintering device or laser melting device, not shown in detail, in order to create a three-dimensional object 14 produce, which is only shown as an example.
  • a laser sintering device comprises an exposure device with a laser source that generates a laser beam, the laser beam being deflected via a deflection device and fed through a focusing device and preferably via a coupling window into a process chamber onto the building material to be solidified.
  • the laser beam is focused on a working plane of the uppermost layer of the construction material in the interchangeable container 11 .
  • a layer-by-layer solidification of the construction material and the production of the three-dimensional object 14 can take place by moving the laser beam in a linear manner.
  • the construction material can be a metallic powder or the like.
  • Such a swap body 11 includes a construction cylinder 15 which surrounds a working space.
  • a substrate plate 16 which can be moved up and down along the construction cylinder 15 by a lifting drive which is not shown in detail. This lifting drive acts on an underside of the substrate plate 16 .
  • the three-dimensional object 14 is built up on a surface 17 pointing into the building cylinder 15 .
  • the substrate plate 16 has at least one seal 18 on an outer circumference. This can be a heat-resistant seal and/or a seal for a process gas.
  • At least one actuator 22 is connected to the substrate plate 16 on an outer side 21 of the substrate plate 16 opposite the surface 17 of the substrate plate 16 .
  • This actuator 22 is connected to the substrate plate 16 in a non-positive and/or positive manner.
  • the actuator 22 includes a sound conductor 23 which is designed for a non-positive and/or positive connection to the substrate plate 16 .
  • a mechanical connection between the actuator 22, in particular the sound conductor 23, and the substrate plate 16 is preferably provided.
  • a thread 24 can be provided at the front end of the sound conductor 23 which engages in a threaded bore 26 in the substrate plate 16 and fixed in it.
  • vibrations generated in the actuator 22 and transmitted to the sound conductor 23 can be coupled directly into the substrate plate 16 .
  • This substrate plate 16 is made of a metallic material and is preferably in one piece.
  • the substrate plate 16 acts as a vibration transmission element, so that the vibrations introduced into the substrate plate 16 are transmitted directly to the three-dimensional object 14 by the structure-borne noise.
  • the at least one actuator 22 is connected to a generator 29 via a high-frequency cable 28 .
  • This generator 29 is an ultrasonic generator that generates ultrasonic vibrations.
  • the generator 29 generates ultrasonic vibrations in a range of 30 to 40 kHz. These ultrasonic vibrations are transmitted via the HF cable 28 and converted by the actuator 22 into mechanical vibrations, which are transmitted or coupled directly into the substrate plate 16 by the sound conductor 23 .
  • the substrate plate 16 has a coupling point 27 assigned to its longitudinal axis, at which a lifting cylinder (not shown) of a laser sintering machine acts, preferably aligned, in order to move the substrate plate 16 into the corresponding position within the construction cylinder 15 during the production of the three-dimensional object 14.
  • the at least one actuator 22 is preferably provided eccentrically on the substrate plate 16 in a non-positive and/or positive manner. The at least one actuator 22 is provided adjacent to the coupling point. This eccentric coupling of the vibrations can also enable a high cleaning effect for depowdering of the three-dimensional object 14 .
  • FIG. 2 shows an alternative embodiment of the interchangeable container 11 to FIG.
  • this interchangeable container 11 it is provided that at least one transmission element 31 is provided on an outer side 21 of the substrate plate 16 .
  • This transmission element 31 is connected firmly to the substrate plate 16 by preferably detachable fastening means 32 .
  • the connection or coupling of the transmission element 31 to the substrate plate 16 is such that the transmission element 31 and the substrate plate 16 act as a common vibration transmission element.
  • Individual surface sections of the transmission element 31 rest directly on the outside 21 of the substrate plate 16 .
  • the at least one actuator 22 is provided on an outer side 33 of the transmission element 31 .
  • This actuator 22 corresponds to the actuator 22 described in FIG. 1 and is arranged in an analogous manner on the transmission element 31 according to one of the previously described embodiments in FIG.
  • a further seal 35 is preferably provided on an outer circumference of the transmission element 31 .
  • the seal 18 of the substrate plate 16 and the seal 35 on the transmission element 31 decouple vibrations from the construction cylinder 15 .
  • the transmission element 31 On its outer side 33, the transmission element 31 has a coupling point, not shown in detail, which is engaged by a lifting cylinder, for example a laser sintering device, in order to move the substrate plate 16 into the corresponding position within the construction cylinder 15 during the production of the three-dimensional object 14.
  • a lifting cylinder for example a laser sintering device
  • a holding or securing device can preferably act on the building cylinder 15 and the substrate plate 16 or the transmission element 31 .
  • the holding or securing device can hold and secure the substrate plate 16 or the transmission element 31 aligned with the lower edge of the interchangeable container 11 .
  • FIG. 41 A schematic side view of a device 41 for unpacking a three-dimensional object 14 produced in the interchangeable container 11 is provided in FIG.
  • This device 41 comprises a base frame 42 on which a turning device 43, which is preferably rotatable about a horizontal axis 44, is provided.
  • This turning device 43 can be manually transferred from a first working position 47 according to FIG. 3 to a second emptying position 48 shown in FIG.
  • the turning device 43 includes a receptacle 51 in which the interchangeable container 11 can be inserted.
  • a lifting device 53 with a lifting cylinder is shown below the swap body 11 .
  • This lifting device 53 can be moved via a linear guide 54 on the base frame 42 and can be moved along a base plate 55 of the base frame 42 so that this lifting device 53 is outside a pivoting range of the turning device 43 .
  • a cover 57 with a suction opening 58 is positioned on the opening of the interchangeable container 11, to which a suction hose can be attached in order to suck off the unsolidified powdery building material.
  • the turning device 43 is transferred from the first working position 47 to the emptying position 48 according to FIG.
  • the unsolidified construction material detaches from the three-dimensional object 14 due to the force of gravity and collects in the cover 57 and is removed via the suction opening 58 .
  • the at least one actuator 22 is positively and/or non-positively connected to the substrate plate 16 or the transmission element 31 .
  • a mechanical connection such as a screw connection, is provided.
  • the generator 29 is then actuated, by which ultrasonic vibrations are generated and coupled directly into the substrate plate 16 or the transmission element 31 through the sound conductor 23 of the actuator 22 .
  • the three-dimensional object 14 can be de-powdered, that is to say the unsolidified construction material still adhering to the three-dimensional object 14 after unpacking is detached.
  • the actuator 22 can be removed from the substrate plate 16 or the transmission element 31 and the interchangeable container 11 can be returned to the first working position 47 .
  • the three-dimensional object 14 can be positioned in relation to the building cylinder 15 for removal by means of the lifting drive device 53 .
  • the above-described unpacking and de-powdering of the three-dimensional object 14 applies analogously to a substrate plate that is inserted directly into the turning device or to a substrate plate 16 that is firmly connected to the transmission element 31 .

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

Abstract

L'invention concerne une plaque de substrat pour un récipient interchangeable, un récipient interchangeable et un procédé et un appareil pour déballer un objet tridimensionnel produit sur une plaque de substrat ou dans le récipient interchangeable par solidification sélective d'un matériau de construction sous forme de poudre, au moins un actionneur (22) qui peut être excité par des vibrations au moyen d'un générateur (29) pouvant être relié par friction ou par liaison de forme à la plaque de substrat (16) ou à l'élément de transfert (31) fixé à la plaque de substrat (16).
EP21791316.9A 2020-10-30 2021-10-12 Plaque de substrat pour récipient interchangeable, récipient interchangeable et procédé et appareil pour déballer un objet tridimensionnel produit sur une plaque de substrat ou dans le récipient interchangeable par solidification sélective d'un matériau de construction sous forme de poudre Pending EP4237177A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020128658.9A DE102020128658A1 (de) 2020-10-30 2020-10-30 Substratplatte für einen Wechselbehälter, Wechselbehälter sowie Verfahren und Vorrichtung zum Entpacken eines auf einer Substratplatte oder eines in dem Wechselbehälter durch selektives Verfestigen eines pulverförmigen Aufbaumaterials hergestellten dreidimensionalen Objektes
PCT/EP2021/078139 WO2022089933A1 (fr) 2020-10-30 2021-10-12 Plaque de substrat pour récipient interchangeable, récipient interchangeable et procédé et appareil pour déballer un objet tridimensionnel produit sur une plaque de substrat ou dans le récipient interchangeable par solidification sélective d'un matériau de construction sous forme de poudre

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DE102022003575B4 (de) * 2022-09-27 2025-01-23 Solukon Ingenieure GbR (vertretungsberechtigte Gesellschafter: Andreas Hartmann, 86391 Stadtbergen; Dominik Schmid, 86165 Augsburg) Entpulverungsvorrichtung zum Entpulvern von im 3D-Druckverfahren entstandenen Objekten
DE102024109528A1 (de) * 2024-04-05 2025-10-09 TRUMPF Laser- und Systemtechnik SE Entpulverungsvorrichtung, Baukammer zur additiven Fertigung von Bauteilen und Verfahren zum Entpulvern solcher Bauteile
CN119304211A (zh) * 2024-12-13 2025-01-14 山东省红印科技有限公司 一种金属增材制造用的粉末清理装置
CN119794390B (zh) * 2025-03-12 2025-09-12 天津危伏智能装备有限公司 快速成型件的预处理加工机床

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US20170282462A1 (en) 2014-10-01 2017-10-05 Panasonic Intellectual Property Management Co., Lt d. Method for manufacturing three-dimensional shaped object
EP3167980A1 (fr) 2015-11-13 2017-05-17 SLM Solutions Group AG Dispositif de déballage permettant l'élimination d'une poudre de matière brute résiduelle
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