WO2017191250A1 - Machine de fabrication additive comprenant un système d'extraction et procédé de fabrication additive par la mise en œuvre d'une telle machine - Google Patents
Machine de fabrication additive comprenant un système d'extraction et procédé de fabrication additive par la mise en œuvre d'une telle machine Download PDFInfo
- Publication number
- WO2017191250A1 WO2017191250A1 PCT/EP2017/060643 EP2017060643W WO2017191250A1 WO 2017191250 A1 WO2017191250 A1 WO 2017191250A1 EP 2017060643 W EP2017060643 W EP 2017060643W WO 2017191250 A1 WO2017191250 A1 WO 2017191250A1
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- Prior art keywords
- container
- machine
- plate
- jacket
- opening
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Classifications
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- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0003—Discharging moulded articles from the mould
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- 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]
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- 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
- B22F12/33—Platforms or substrates translatory in the deposition plane
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- 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
- B22F12/80—Plants, production lines or modules
- B22F12/88—Handling of additively manufactured products, e.g. by robots
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- 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
- B22F12/90—Means for process control, e.g. cameras or sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
- B28B15/005—Machines using pallets co-operating with a bottomless mould; Feeding or discharging means for pallets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
- B28B7/0035—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
- B28B7/0035—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding
- B28B7/0038—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding the sidewalls of mould and moulded article moving only past each other, e.g. box-shaped moulds which are lifted off from the moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
- B28B7/0035—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding
- B28B7/0041—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding the sidewalls of the mould being moved only parallelly away from the sidewalls of the moulded article
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- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0003—Discharging moulded articles from the mould
- B29C37/0007—Discharging moulded articles from the mould using means operable from outside the mould for moving between mould parts, e.g. robots
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- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0003—Discharging moulded articles from the mould
- B29C37/0007—Discharging moulded articles from the mould using means operable from outside the mould for moving between mould parts, e.g. robots
- B29C37/001—Discharging moulded articles from the mould using means operable from outside the mould for moving between mould parts, e.g. robots combined with means for loading preforms to be moulded or inserts, e.g. preformed layers
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- 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
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- 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
-
- 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
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- 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
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- 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
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- 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
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- 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
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- 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
- B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
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- 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
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- 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
- B22F10/70—Recycling
- B22F10/73—Recycling of powder
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- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- 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
- Additive manufacturing machine comprising an extraction system and additive manufacturing method by the implementation of such a machine
- the invention relates to the field of so-called additive manufacturing, also commonly known as 3D printing. More specifically, the invention relates in particular to the evacuation of a part after its manufacture by 3D printing.
- 3D printing techniques make it possible to manufacture pieces of complex geometries, which conventional techniques such as molding, cutting or extrusion do not allow to achieve, or parts for which these conventional techniques do not allow 'reach the level of precision required.
- a widespread technique is to manufacture a piece in successive slices, from a material distributed on a working surface in the form of powder.
- a first layer of material is dispensed onto the work surface.
- a source of energy for example provided by a laser, makes it possible to solidify the wafer of the part to be manufactured in the layer of material.
- the grains of powder are welded together according to different physical processes depending in particular on the nature of the material, so as to form a continuity in the material. It may be for example melting powder grains to agglomerate.
- the set of physical processes for solidifying the powder will be referred to as total or partial fusion.
- the work surface is then lowered from a height corresponding to the next layer height.
- the next layer is then spread out, the next slice is drawn in this layer, and so on.
- a manufacturing machine comprises a powder dispenser, in this case metallic, for depositing a first portion of powder on a target region.
- a roll may optionally spread the powder.
- a laser beam selectively fuses a first layer corresponding to a first portion of the part to be manufactured. The process is then repeated layer by layer.
- the work surface is of adjustable height.
- the work surface is formed on a workpiece support platform which is slidably mounted in a jacket forming the work chamber. The support platform is lowered into the chamber as the slices of the workpiece are formed.
- Document US Pat. No. 5,846,370 proposes to remove from the machine the production chamber containing the finished part and the powder.
- a cover can be returned to the manufacturing chamber before removing it to prevent the finished part and the powder from being exposed to the air.
- Document US 2012/0090734 also proposes extracting the finished part by removing the manufacturing chamber.
- the manufacturing chamber comprises an internal box housed in an external box, the inner box being removable relative to the outer box.
- the outer casing is provided with a hatch-type reclosable opening, making it possible to remove the inner casing containing the finished piece and the remaining powder from the internal casing, and to place a new inner casing therein.
- WO 2014/044705 proposes to place a box above the jacket, to raise the part support platform together with the finished part and the non-solidified powder, and to close the box by means of the platform. .
- a disadvantage of this solution is that the work platform must be adapted to close the box, increasing manufacturing costs.
- the work platform is an interchangeable part, so that costs are multiplied by as many platforms as it is necessary to store.
- the closure system of the box can be filled with powder or deteriorate which can affect its function and generate leaking powder during handling operations.
- a first object of the invention is to propose an additive manufacturing machine comprising a system for extracting the finished part without significantly increasing the costs of the device.
- a second object of the invention is to provide an additive manufacturing machine comprising a finished part extraction system that does not require a review of the design of the manufacturing device.
- a third object of the invention is to provide an additive manufacturing machine comprising a finite part extraction system for reliably removing from the manufacturing device the powder that has not been exposed.
- a fourth object of the invention is to propose a system for extracting the finished part by a completely external system whose constituents can not be degraded by the environment and the operations of making the part.
- the invention proposes a machine for additive manufacturing of a part by total or partial selective melting of a powder.
- the machine includes:
- a liner having an upper opening opening into the working chamber, and having a vertical central axis
- a part extraction system comprising a container comprising at least one lower opening in the direction of the upper opening of the sleeve, the container being mounted movably in the working chamber relative to the sleeve between a waiting position wherein the container is away from the opening of the liner and an operating position in which the lower opening of the container coincides at least partially with the upper opening of the liner.
- the support plate is then moved by the actuating device from the jacket to the inside of the container in the operating position, and the extraction system further comprises at least one movable closure plate relative to the container in the working enclosure along at least one horizontal axis to close the lower opening of the container, this closure plate being distinct from the support plate.
- the attachment between the support plate and the actuating device is of removable type.
- the extraction system can then form an independent assembly of the elements involved during the manufacture of the part, so that it does not impact the design and operation of these elements.
- the machine may have the following other characteristics, considered alone or in combination:
- the container can move between a standby position and an operating position along a feed axis parallel to the vertical central axis of the sleeve;
- the container can move between a standby position and an operating position along a feed axis perpendicular to the vertical central axis of the liner; the container can move between an operating position and an extraction position in which the container is outside the working chamber;
- the actuator may comprise a piston, the support plate being removably mounted on the piston, the closure plate interposed between the support plate and the piston to close the lower opening of the container;
- the extraction system comprises a removable hooking device between the closure plate and the container; the extraction system comprises at least one seal between the closure plate and the container.
- the invention may relate to a method of additive manufacturing of a part by total or partial selective melting of a powder by the implementation of the machine as presented above. According to the process, after the manufacture of the piece:
- the container is moved relative to the liner from a waiting position to an operating position above the upper opening of the liner,
- the support plate is displaced along the vertical central axis by the actuating device to the inside of the container
- the closure plate is moved in translation relative to the jacket to close the lower opening of the container, or the container is moved in translation along a horizontal axis relative to the jacket on the closure plate to close the lower opening of the container; container.
- the container and the closure plate can be moved together in an extraction position outside the working chamber of the machine.
- FIGS. 1 to 4 are diagrammatic representations of the interior of an additive manufacturing machine according to a first embodiment
- Figures 5 and 6 are schematic representations of the interior of the additive manufacturing machine, similar to those of Figures 1 to 4, according to a second embodiment.
- FIGs 1 to 6 there is shown a machine 1 for additive manufacturing of a part 2 by selective melting, total or partial, of a material in powder form.
- the material may be in particular metal or plastic.
- the machine 1 comprises in particular a chamber 100 of manufacture, constituting a space closed to the controlled atmosphere.
- the enclosure 100 is filled with a gas inert with respect to the material used, to limit corrosion.
- the chamber 100 of manufacture is delimited by an upper wall 101, a lower wall 102, and side walls 103.
- the bottom wall 102 forms a work surface on which the powder is spread.
- the machine 1 comprises a jacket 3 comprising an upper opening 4 coinciding with an opening in the plane 102 of work and opening into the enclosure 100. More specifically, the jacket 3 extends along a central vertical axis 5 between the opening 4 upper, upwardly, and a bottom 14, which can be open or not.
- the side wall of the liner 3 can thus serve as a guide for a part support plate 6.
- the workpiece support plate 6 is intended to receive the workpiece 2 during manufacture. It is actuated in vertical displacement along the central axis 5 by an actuating device 7.
- the actuating device 7 comprises for example a piston on which the support plate 6 is fixed, directly or indirectly.
- a heating device may be arranged between the support plate 6 and the piston to control the temperature of the plate 6.
- the attachment between the support plate 6 and the actuating device 7 is of removable type.
- the support plate 6 can be removed from the actuating device 7, for example to be taken out of the machine 1.
- the machine 1 further comprises a melting system, not shown, allowing the powder grains to fuse to agglomerate.
- a melting system not shown, allowing the powder grains to fuse to agglomerate.
- This is for example a laser system, sending a beam on the powder inside the chamber 100 work.
- the piece 2 is manufactured layer by layer by total or partial melting of the powder.
- Each layer of powder is distributed and spread successively on the plane 102 of work, so as to cover at least part of the workpiece support tray 6, the tray 6 being lowered into the sleeve 3 at a height determined between each layer.
- the machine 1 further comprises a system 8 for extracting the coin 2.
- the extraction system 8 comprises at least one container 9, the dimensions of which are at least equivalent to those of the jacket 3, so that the volume of the container 9 is at least equal to the volume of the jacket 3.
- the container 9 comprises at least, and preferably only, a bottom opening 15 facing downwards.
- the container 9 may for example have a generally cylindrical shape, square or circular section.
- the dimensions of the lower opening of the container 9 are greater than those of the workpiece support plate 6, which can then pass through the lower opening 15.
- the dimensions of the lower opening of the container 9 are greater than the dimensions of the upper opening 4 of the sleeve 3, so that the container 9 can bear on the plane 102 of work by covering the opening 4 upper of the shirt 3.
- the container 9 thus forms a receptacle for the finished part 2 and the unfused powder.
- the container 9 is movably mounted in translation in the machine 1 relative to the sleeve 3 so as to take at least two positions:
- the part 2 can pass from the liner 3 into the container 9 by passing through the upper opening 4 of the liner and the lower opening 15 of the container 9 by moving the tray 6 support upwards by the actuating device 7.
- the extraction system 8 further comprises a closure plate 12, for closing the lower opening 15 of the container 9 when the part 2 and the support plate 6 are inside.
- the closure plate 12 is movable relative to the container 9 along at least one horizontal axis to slip under the container 9 and close its lower opening once the part 2 and the support plate 6 are placed inside the container 9.
- the closure plate 12 remains fixed in the enclosure 100, with respect to the jacket 3, and the container 9 moves horizontally relative to the plate 12 of closure, the container 9 remains fixed relative to the jacket 3, and it is the closure plate 12 which moves horizontally relative to the container 9.
- the container 9 Once the container 9 is closed by the closure plate 12, it can again be moved, together with the closure plate 12, in an extraction position in which it can be removed from the chamber 100 of manufacture .
- the extraction system 8 may furthermore comprise a device 13 for detachably hooking up between the closure plate 12 and the container 9.
- a device 13 for detachably hooking up between the closure plate 12 and the container 9.
- This is any device making it possible to temporarily fix the closure plate 12 to the container 9. It may be for example a device with retractable pins, snap, or a suction device.
- the container 9 moves in translation between a waiting position and an operating position along a feed axis, which is horizontal, that is, say perpendicular to the central axis 5 of the liner 3.
- the container 9 While the part 2 is being manufactured, the container 9 is kept in the standby position, away from the upper opening 4 of the jacket 3 to leave it unobstructed and allow the laser beam to reach the powder to merge it.
- the closure plate 12 is then also in a position away from the upper opening 4 of the sleeve 3 as the part 2 is being manufactured.
- the closure plate 12 is placed closer to the plane 102 of work, with a fair enough clearance to allow the sliding of the closure plate 12 relative to the plane 102 work.
- the container 9 in the waiting position is placed above the closure plate 12 in the initial position, the edges of its lower opening 15 being in contact with the closure plate 12.
- the container 9 is initially moved in the chamber 100 along the axis 10 of supply, the edges of the lower opening 15 sliding on the closing plate 12 which remains fixed.
- the container 9 is moved in the enclosure 100 perpendicularly to the supply axis, or parallel to the central axis of the liner 3, so that the lower opening 15 of the container 9 comes into coincidence with the upper opening 4 of the jacket 3.
- the actuating device 7 When the container 9 is in the operating position, the actuating device 7 is used to move the support plate 6 upwards, so that the assembly consisting of the support plate 6, the part 2 and the powder surrounding it is transferred into the container 9. As the edges of the lower opening of the container 9 are in contact with the plane 102 of work around the upper opening 4 of the jacket 3, the powder can not be used. escape during the transfer due to the continuity between the upper opening 4 of the liner 3 and the lower opening 15 of the container 9.
- the container 9 is again moved horizontally, along an axis which is, according to the example presented here, the same axis 10 of supply, the closing plate 12 remaining still immobile.
- the support plate 6 separates from the piston of the actuating device 7, then the support plate 6 is slid horizontally relative to the piston of the actuating device 7, driven by the horizontal displacement of the container 9.
- container 9 then returns in the same position as the waiting position, carrying the support plate 6, the finished part 2 and the powder surrounding it, above the closure plate 12, so that the edges of the opening 15 of the container 9 are in contact with the closure plate 12. The lower opening of the container 9 is thus closed by the closure plate 12.
- the hooking device 13 is then actuated to secure the closure plate 12 and the container 9.
- a seal 16 between the closure plate 12 and the container 9.
- This seal 16 prevents the powder from escaping from the formed enclosure by the container 9 and the closure plate 12.
- the seal 16 makes it possible to prevent pollution and oxidation of the powder merged, which facilitates the reuse of this powder for the manufacture of new parts.
- the container 9 closed by the closure plate 12 and containing the finished part 2 can then be brought to a cleaning station to remove the unfused powder.
- the cleaning station can be formed in a dedicated compartment of the machine 1, separated from the chamber 100 of manufacture.
- the container 9 and the closure plate 12 are provided to be moved to the dedicated compartment.
- the cleaning station can be separated from the machine.
- the container 9 and the closure plate 12 are designed to be removable relative to the machine 1.
- the seal 16 between the container 9 and the plate 12 then makes it possible to avoid the powder of oxidize during transport from the machine to the cleaning station.
- the powder can then be recovered and recycled.
- the container 9 is moved to a position of extraction, outside the enclosure 100 of manufacture.
- the container moves in translation towards the extraction position along an extraction axis 1 1, which may be horizontal or vertical, and in particular which may be coincident with the supply axis.
- An outlet hatch may be formed on the upper wall 101 or on one of the side walls 103 of the enclosure 100 to let the container 9 out of the chamber 100 manufacturing extraction position, for example in a lock allowing an operator to have access to the container 9 containing the finished part, already cleaned or not powder.
- a new part support plate 6 is secured to the piston of the actuating device 7 in the chamber 100 of manufacture.
- the container 9 moves in translation between a waiting position and an operating position along a feed axis, which is vertical, that is to say say parallel to the central axis 5 of the liner 3, and in this case according to the second example presented here, coincides with the central axis 5.
- a feed axis which is vertical, that is to say say parallel to the central axis 5 of the liner 3, and in this case according to the second example presented here, coincides with the central axis 5.
- the closure plate 12 is then in an initial position, also away from the opening 4 of the jacket 3, which is similar, but not necessarily, to that of the preceding example.
- the container 9 is moved along the axis of supply into the operating position, in which its lower opening 15 is brought into coincidence with the upper opening 4 of the jacket 3.
- edges of the lower opening of the container 9 are in contact with the plane 102 of work around the upper opening 4 of the jacket 3, and the powder can not escape during the transfer because of the continuity between the upper opening 4 of the liner 3 and the lower opening 15 of the container 9.
- the actuating device 7 then raises the assembly formed of the support plate 6, the finished part 2 and the powder surrounding it inside the container 9.
- the actuating device 7 rises parallel to the central axis 5 of the liner 3 the assembly formed of the support plate 6, the finished part 2 and the surrounding powder to a height h corresponding substantially at the thickness e of the closure plate 12.
- the container 9 also rises parallel to the central axis 5 of the liner to a height h substantially corresponding to the thickness e of the closure plate 12, as can be seen in FIG.
- the closure plate 12 can be moved horizontally from its initial position to come between the upper opening 4 of the liner 3 and the lower opening 15 of the container 9, in contact with the edges of the opening 15 lower and under the support plate 6. At the same time as the closing plate 12 moves, it is planned to separate the device 7 for actuating the support plate 6 to allow the closure plate 12 to completely cover the lower opening 15 of the container 9.
- the hooking device 13 is then actuated to secure the closure plate 12 and the container 9, and the seal 16 seals between the closure plate 12 and the container 9.
- the container 9 closed by the closure plate 12 can again be moved to an extraction position in an airlock accessible to an operator, by passing out of the enclosure 100 of manufactured by an exit hatch.
- the airlock can form a powder cleaning station in the machine 1, so that an operator opening the airlock has direct access to the cleaned part of powder.
- the operator can also remove the container 9 closed by the closure plate 12 to take the piece to a cleaning station away from the machine 1.
- the container 9 is moved in extraction position by translation along an axis 1 1 of extraction, which may be coincident with the axis 10 of supply, so that the container 9 is moved to the extraction position by being raised.
- the feed axis 10 and the axis 1 1 extraction are not necessarily oriented in the same direction.
- the axis 1 1 of extraction can thus be horizontal, not coincident with the axis 10 of supply.
- the container 9 being greater than those of the support plate 6, the latter does not participate in closing the container 9, which facilitates the design of the support plate 6. Indeed, the support plate 6 does not require any particular characteristic.
- the gas in the container can escape through the lower opening 15, avoiding an increase in pressure in the container 9.
- the container 9 may be equipped with a device 17, such as for example a valve or a filter, allowing the gas present in the container to pass through and to retain the powder to prevent any leakage. of powder linked to the movement of gas during the rise of the volume of the part and the powder in the container.
- a device 17 such as for example a valve or a filter
- the container 9 is movable along the feed axis 10 and the extraction axis 1 1 which are rectilinear. They may, however, be curvilinear, or consist of several rectilinear sections inclined relative to each other.
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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)
- Robotics (AREA)
- Ceramic Engineering (AREA)
- Plasma & Fusion (AREA)
- Automation & Control Theory (AREA)
- Analytical Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018557339A JP6873158B2 (ja) | 2016-05-04 | 2017-05-04 | 取り出しシステムを有するアディティブマニュファクチャリング機械およびかかる機械を使用することによるアディティブマニュファクチャリング方法 |
| KR1020187031558A KR102215274B1 (ko) | 2016-05-04 | 2017-05-04 | 추출 시스템을 포함하는 부가식 제조 기계 및 이러한 기계를 사용하는 부가식 제조 방법 |
| US16/098,729 US10875249B2 (en) | 2016-05-04 | 2017-05-04 | Additive manufacturing machine comprising an extraction system and method of additive manufacturing by using such a machine |
| CN201780025811.9A CN109070456B (zh) | 2016-05-04 | 2017-05-04 | 包括提取系统的增材制造机器和使用这种机器的增材制造方法 |
| EP17723958.9A EP3452270A1 (fr) | 2016-05-04 | 2017-05-04 | Machine de fabrication additive comprenant un système d'extraction et procédé de fabrication additive par la mise en uvre d'une telle machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1654061A FR3050956B1 (fr) | 2016-05-04 | 2016-05-04 | Machine de fabrication additive comprenant un systeme d’extraction et procede de fabrication additive par la mise en oeuvre d’une telle machine |
| FR1654061 | 2016-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017191250A1 true WO2017191250A1 (fr) | 2017-11-09 |
Family
ID=56411749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2017/060643 Ceased WO2017191250A1 (fr) | 2016-05-04 | 2017-05-04 | Machine de fabrication additive comprenant un système d'extraction et procédé de fabrication additive par la mise en œuvre d'une telle machine |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10875249B2 (fr) |
| EP (1) | EP3452270A1 (fr) |
| JP (1) | JP6873158B2 (fr) |
| KR (1) | KR102215274B1 (fr) |
| CN (1) | CN109070456B (fr) |
| FR (1) | FR3050956B1 (fr) |
| WO (1) | WO2017191250A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165267A (zh) * | 2018-12-10 | 2021-07-23 | Addup公司 | 具有紧凑布置的致动器的增材制造设备 |
| WO2023118758A1 (fr) | 2021-12-23 | 2023-06-29 | Addup | Machine de fabrication additive par depot de lit de poudre |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017196355A1 (fr) * | 2016-05-12 | 2017-11-16 | Hewlett-Packard Development Company, L.P. | Post-traitement dans des systèmes d'impression 3d |
| US11465204B2 (en) | 2016-07-26 | 2022-10-11 | Hewlett-Packard Development Company, L.P. | Cooling of build material in 3D printing system |
| US11660819B2 (en) | 2016-11-02 | 2023-05-30 | R3 Printing, Inc. | System and method for automated successive three-dimensional printing |
| US10723075B2 (en) * | 2016-11-02 | 2020-07-28 | R3 Printing, Inc. | System and method for automated successive three-dimensional printing |
| EP3486071A1 (fr) * | 2017-11-21 | 2019-05-22 | CL Schutzrechtsverwaltungs GmbH | Appareil de fabrication additive d'objets tridimensionnels |
| US10359764B1 (en) * | 2017-12-29 | 2019-07-23 | Palo Alto Research Center Incorporated | System and method for planning support removal in hybrid manufacturing with the aid of a digital computer |
| FR3080796B1 (fr) * | 2018-05-03 | 2020-04-17 | Addup | Machine de fabrication additive comprenant un dispositif de distribution de poudre par doseur a vis sur une surface mobile |
| EP3456518A1 (fr) * | 2018-08-24 | 2019-03-20 | Concept Laser GmbH | Appareil de fabrication additive d'objets tridimensionnels |
| EP3702052B1 (fr) * | 2019-02-28 | 2024-07-31 | Sirona Dental Systems GmbH | Support de composant pour dispositif de fabrication additive |
| NL2023591B1 (en) * | 2019-07-30 | 2021-02-23 | Ultimaker Bv | Method of determining a local height of a build surface |
| GB202011515D0 (en) * | 2020-07-24 | 2020-09-09 | Additive Manufacturing Tech Ltd | Additive manufacturing |
| US12330373B2 (en) | 2020-10-29 | 2025-06-17 | Peridot Print Llc | Build cake drop height determination |
| GB202018817D0 (en) * | 2020-11-30 | 2021-01-13 | Renishaw Plc | Powder bed fusion apparatus and methods |
| DE102023100365A1 (de) * | 2023-01-10 | 2024-07-11 | Trumpf Laser- Und Systemtechnik Gmbh | Additive Fertigungsvorrichtung und Rüstverfahren |
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| KR960008015B1 (ko) | 1986-10-17 | 1996-06-19 | 보드 오브 리젼츠, 디 유니버시티 오브 텍사스 시스템 | 선택적 소결에 의한 부품의 제조 방법 및 장치 |
| US5846370A (en) | 1997-03-17 | 1998-12-08 | Delco Electronics Corporation | Rapid prototyping process and apparatus therefor |
| DE19937260B4 (de) * | 1999-08-06 | 2006-07-27 | Eos Gmbh Electro Optical Systems | Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Objekts |
| DE102005030854B3 (de) | 2005-07-01 | 2007-03-08 | Eos Gmbh Electro Optical Systems | Vorrichtung zum Herstellen eines dreidimensionalen Objektes |
| DE102013223407A1 (de) * | 2013-11-15 | 2015-05-21 | Eos Gmbh Electro Optical Systems | Vorrichtung und Verfahren zum schichtweisen Herstellen eines dreidimensionalen Objekts sowie zum Auspacken des fertiggestellten Objekts |
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| CA2859414C (fr) * | 2014-04-04 | 2017-03-14 | Matsuura Machinery Corporation | Equipement de traitement de poudre metallique |
| FR3027841B1 (fr) | 2014-11-04 | 2017-05-19 | Michelin & Cie | Machine et procede pour la fabrication additive a base de poudre |
| FR3046093B1 (fr) | 2015-12-23 | 2018-01-26 | Compagnie Generale Des Etablissements Michelin | Atelier de fabrication additive |
| GB201600629D0 (en) * | 2016-01-13 | 2016-02-24 | Renishaw Plc | Powder bed fusion apparatus and methods |
| US20190039292A1 (en) * | 2016-04-22 | 2019-02-07 | Hewlett-Packard Development Company, L.P. | Producing three-dimensional (3d) objects |
-
2016
- 2016-05-04 FR FR1654061A patent/FR3050956B1/fr active Active
-
2017
- 2017-05-04 CN CN201780025811.9A patent/CN109070456B/zh not_active Expired - Fee Related
- 2017-05-04 WO PCT/EP2017/060643 patent/WO2017191250A1/fr not_active Ceased
- 2017-05-04 US US16/098,729 patent/US10875249B2/en active Active
- 2017-05-04 EP EP17723958.9A patent/EP3452270A1/fr active Pending
- 2017-05-04 JP JP2018557339A patent/JP6873158B2/ja not_active Expired - Fee Related
- 2017-05-04 KR KR1020187031558A patent/KR102215274B1/ko not_active Expired - Fee Related
Patent Citations (4)
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| US20010045678A1 (en) * | 2000-05-25 | 2001-11-29 | Minolta Co., Ltd. | Three-dimensional modeling apparatus |
| US7665636B2 (en) * | 2002-05-20 | 2010-02-23 | Ingo Ederer | Device for feeding fluids |
| WO2014044705A1 (fr) * | 2012-09-18 | 2014-03-27 | Eos Gmbh Electro Optical Systems | Dispositif pour fabriquer par couches un objet tridimensionnel |
| DE102014112446A1 (de) * | 2014-08-29 | 2016-03-03 | Exone Gmbh | Verfahren und Vorrichtung zum Entpacken eines Bauteils |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165267A (zh) * | 2018-12-10 | 2021-07-23 | Addup公司 | 具有紧凑布置的致动器的增材制造设备 |
| WO2023118758A1 (fr) | 2021-12-23 | 2023-06-29 | Addup | Machine de fabrication additive par depot de lit de poudre |
| FR3131245A1 (fr) | 2021-12-23 | 2023-06-30 | Addup | Machine de fabrication additive par dépôt de lit de poudre |
Also Published As
| Publication number | Publication date |
|---|---|
| US20190134909A1 (en) | 2019-05-09 |
| KR20190004707A (ko) | 2019-01-14 |
| CN109070456A (zh) | 2018-12-21 |
| JP2019516580A (ja) | 2019-06-20 |
| CN109070456B (zh) | 2020-07-31 |
| KR102215274B1 (ko) | 2021-02-15 |
| US10875249B2 (en) | 2020-12-29 |
| FR3050956A1 (fr) | 2017-11-10 |
| FR3050956B1 (fr) | 2018-05-25 |
| JP6873158B2 (ja) | 2021-05-19 |
| EP3452270A1 (fr) | 2019-03-13 |
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