EP3426472A1 - Procédé et dispositif de fabrication de pièces en 3d au moyen d'outils à panneau de support - Google Patents

Procédé et dispositif de fabrication de pièces en 3d au moyen d'outils à panneau de support

Info

Publication number
EP3426472A1
EP3426472A1 EP17718005.6A EP17718005A EP3426472A1 EP 3426472 A1 EP3426472 A1 EP 3426472A1 EP 17718005 A EP17718005 A EP 17718005A EP 3426472 A1 EP3426472 A1 EP 3426472A1
Authority
EP
European Patent Office
Prior art keywords
construction field
tools
layer
powder
construction
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
EP17718005.6A
Other languages
German (de)
English (en)
Inventor
Daniel GÜNTHER
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.)
Voxeljet AG
Original Assignee
Voxeljet AG
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 Voxeljet AG filed Critical Voxeljet AG
Publication of EP3426472A1 publication Critical patent/EP3426472A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
    • 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
    • B29C64/171—Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects
    • B29C64/182—Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects in parallel batches
    • 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
    • B29C64/209—Heads; Nozzles
    • 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
    • B29C64/227—Driving means
    • 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
    • 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
    • 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 [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D 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
    • 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
    • B33Y80/00—Products made by additive manufacturing

Definitions

  • European Patent EP 0 431 924 B1 describes a method for producing three-dimensional objects from computer data.
  • a particulate material is applied in a thin layer on a platform and this selectively printed by means of a print head with a binder material.
  • the particle area printed with the binder sticks and solidifies under the influence of the binder and optionally an additional hardener.
  • the platform is lowered by one layer thickness into a structural cylinder and provided with a new layer of particulate material, which is also printed as described above. These steps are repeated until a certain desired height of the object is reached.
  • the printed and solidified areas create a three-dimensional object.
  • Printers of the prior art partly have construction containers which can be removed from the installation and are also referred to as job boxes or building containers. These serve as a limitation for the powder and thus stabilize the building process. By changing the construction container, process steps can be parallelized and the plant can thus be utilized well. Likewise, there are systems that print on a platform that can be removed from the system like the construction containers. Also, methods are known in which is printed on a continuous conveyor belt at a certain angle.
  • the components are present in powder at the end and must be fed through further technical measures to further automated processing.
  • the construction container, its size and the large number of producible forms has a limiting effect on the incorporation of the layering process into a production system. It Although there are numerous ideas for automation via robots or handling equipment.
  • the powder cake, the removal of the particulate material and the exact position of the components make a process-reliable and economical unpacking and transfer to processing facilities technically difficult to control.
  • the plurality of construction field tools may be arranged in series and interconnected. As a result, a coordinated movement of the individual construction field tools is possible and a series production of components is achieved. There is then a kind of assembly line and the construction field tools can be moved to the layer units out. After the construction of the molded part in a construction field tool or parallel in several construction tools next to each other, in which case also several layer units can be used, the construction tools are preferably clocked procedure and in subsequent construction tools are then printed again moldings. Down in the process chain then further process steps or additional treatment steps can be carried out with the moldings produced. All process steps can be linked together automatically. Preferably, robots are used.
  • construction field tools and layer units can be directed and coordinated controllable. This serves the optimized sequence of a serial process or a series production of components in large numbers.
  • the construction field tools are adapted to the component to be manufactured in such a way that only a small area of unconsolidated powder material has space around the component and the construction field tools essentially have the dimensions of the SD molded parts to be manufactured.
  • the device according to the invention can be coupled with other devices useful for producing the desired molded parts.
  • the device according to the invention is particularly advantageously coupled with further means for further process steps after the 3D part design and / or has means which are suitable for automated removal of the SD molded parts.
  • the apparatus can furthermore be connected via conveying means with further methods or method steps for the treatment of the shaped parts, such as heat steps or other steps of component refinement known to the person skilled in the art.
  • Figure 2 Schematic representation of the process steps of 3D printing.
  • Figure 4 Representation of created with a conventional 3D printer
  • Figure 5 representation of a construction field tool according to the invention.
  • FIG. 6 Illustration of a construction field tool with marks
  • FIG. 7 Representation of the functional relationships of a layer unit.
  • FIG. 8 Illustration of the creation of a layer with the construction field tool.
  • FIG. 9 Representation of the creation of two layers synchronously with two layer units.
  • FIG. 10 Illustration of an extended working space with two construction field tools.
  • FIG. 11 Illustration of a performance-enhanced device.
  • Figure 12 Representation of the exchange of a layer unit during the current process.
  • layer-building method or “SD-printing method” are all known from the prior art methods that allow the construction of components in three-dimensional shapes and are compatible with the described process components and devices.
  • “Shaped body” or “component” or 3D molded part or 3D component in the sense of the invention are all three-dimensional objects produced by the method according to the invention and / or the device according to the invention, which have a dimensional stability.
  • Construction field tool in the sense of the invention means a means or a component of the device according to the invention, with the use of which the result of the processes of coating, printing and working height can be realized, preferably also the process of the powder cake, ie the non-solidified particle material, after the printing process has ended
  • the construction field tool can be equipped with an open bottom and with various features for processing the components in post-printing processes Construction field tool designed so that an edge or a grid on the bottom side prevents that when you open the flap, the manufactured 3D component falls out.
  • the construction field tool may consist of a base plate and laterally raised, rolled, bent or attached sides.
  • the construction field tool then has either no side parts or only very low sides on the other two or one sides, so that the 3D component can be easily removed from it. In this way, a removal or unpacking in automated and / or by Robotor subsequent further processing or the supply in further treatment processes or steps is achieved and facilitated.
  • An exemplary construction field tool is described by the reference numeral 500.
  • a "receiving plane” is understood to be the plane onto which building material is applied. [0016] According to this invention, the receiving plane is above the mark (???) in the tooling field linear movement freely accessible.
  • travelling axis is an axis which carries layer units or which can be created along it, is arranged above the construction field tools and has a travel that is wide in the system compared to the other axes.
  • Travel axis can also indicate the direction in which, for example, a construction field tool can be clocked and moved in coordination with other device parts. Even a print head can be moved on a "travel axis".
  • “spreading out” means any manner in which the particle material is distributed, for example, at the starting position of a coating run, a larger amount of powder may be introduced and spread or coated in the layer volume by a blade or a rotating roller.
  • particulate material or “powder”
  • all flowable materials known for 3D printing can be used, in particular in powder form, as slag or as liquid.
  • These may be, for example, sands, ceramic powders, glass powders, and other powders of inorganic or organic materials such as metal powders, plastics, wood particles, fiber materials, celluloses and / or lactose powders, as well as other types of organic powdered materials.
  • the particulate material is preferably a dry, free-flowing powder, but a cohesive, cut-resistant powder may also be used. This cohesiveness can also result from the addition of a binder material or an auxiliary material.
  • the “excess amount” or “overfeed” is the amount of particulate material that is pushed in the coating travel at the end of the construction field in front of the coater.
  • a “layer unit” in the sense of the invention is a combination of a print head, a coater and a height axis to form a module
  • This module can, when moved with the travel axis over the receiving plane, adjust the operations, coating, printing and working height
  • the "layer unit” comprises a printhead which is arranged between two coater means.
  • the "layer unit” can be moved upwards in the direction of the Z-axis, in each case by one layer thickness, whereby a working process is virtually coated and the binder is selectively applied with the print head behind the newly applied powder material
  • the "layer unit” can be moved in working mode during coating and printing in the X-direction.
  • the "printhead” typically consists of several components, including the print modules, which are aligned relative to the printhead, and the printhead is oriented relative to the machine, allowing the location of a nozzle to be mapped to the machine coordinate system.
  • Binder jetting - layer construction method is to be understood that layer by layer powder is applied to a construction platform, in each case the cross sections of the component are printed on this powder layer with a liquid binder, the position of the build platform is changed by a layer thickness to the last position and this Repeat steps until the component is ready.
  • the system according to the invention is closely based on the powder-based 3D printing.
  • the device according to the invention has completely different functional relationships and will be described in more detail below.
  • FIG. 1 shows a 3D printer according to the prior art.
  • the SD printer has the device parts printhead (100), coater (101) and a building platform for the delivery of individual layers (107).
  • the powder cake grows in a building container (104) during the process.
  • the result is a three-dimensional component (113) that can be unpacked from the loose powder surrounding the component.
  • the device according to the invention has a powder coater (101). With this particulate material is applied to a build platform (102) and smoothed ( Figure 2 (a)).
  • the applied Parti kelmaterial may consist of various materials. For example, sand, ceramic powder, metal powder, plastic, wood particles, fiber material, celluloses, lactose powder, etc. may be used. The flow properties of these materials can vary greatly.
  • Various coating techniques allow the layer formation of dry, free-flowing powders, over cohesive, cut-resistant powders, to liquid-based dispersions.
  • the height of the powder layers (107) is determined by the build platform (102). It is lowered after applying a coat. During the next coating process, the resulting volume is filled and the supernatant smoothed. The result is a nearly perfectly parallel and smooth layer of defined height.
  • the layer is printed with a liquid by means of an inkjet printhead (100) (FIG. 1 (105), FIG. 2 (b)).
  • the printed image corresponds to the section through the component in the current height of the device.
  • the drops of liquid (109) strike the particulate matter and the liquid slowly diffuses into the powder.
  • the construction field tools (500), in contrast to the usual in the prior art job boxes (104) are designed so that subsequent steps after the 3D printing are taken into account in the execution.
  • the dimensioning corresponds to the component to be produced.
  • the volume of the container preferably does not correspond to 50% of the box volume of a component to be produced. Particularly preferably less than 30% of the component.
  • the design is preferably temperature-stable.
  • the bottom (601, 602) may be opened, for example, to drain powder (603). Marks for recognition by robotic systems are appropriate.
  • All elements are assembled into a 3D production plant. It has different stations that represent different production steps. There is at least one station for actual printing (1301). Preference is given to stations for heating (1400), a pre-unpacking station (1401) and a breaking station (1402) for the acquisition of components in follow-on production.
  • the stations are connected by a chain of construction field tools, which are fed cyclically to the individual stations. The drive of this delivery can be done by a mechanical chain (1300) or other Antriebarten (belts, racks, wheels, linear motors).
  • the production device thus goes from powder and liquid binder to the transfer of finished components to a production interface.
  • An exemplary application of the invention is the mass production of foundry cores in engine construction.
  • the cores for the so-called water space (300) in the cylinder head are very complex. These are often penetrated or framed by additional cores for the inlet branch pipes and the oil space.
  • these cores are manufactured with peripheral tools in core shot machines. Every single core must be free of undercuts.
  • the tool for the complex shapes is extremely expensive. It consists of several slides, which are delivered from different directions in space and thereby define the cavity, which is filled in a further step with the molding material.
  • the device is a 3D printer whose construction volume is slightly more than 8 ⁇ 15 ⁇ 60 cm. This volume can be edited quickly. Likewise, several of these volumes can be processed simultaneously or sequentially in a single device.
  • the volume is defined by a special carrier, the construction field tool (500), which can be made extremely simplified compared to a pressure device with a normal space. In the case of a water jacket core, the construction field tool can be a kind of gutter.
  • the print head (100) and the coater (101) run as a layer unit and produce the desired component.
  • the construction field tool (500) is very small and adapted to the volume of the component. Thus, the device size, in particular the investment level of the task is optimally adapted.
  • the construction field tool is particularly simple and can be easily integrated into a production line. This allows easy integration even when creating such a production device by several companies.
  • An essential basic unit of the device for use in the method according to the invention is the layer unit (FIG. 7, 800). These units are closed modules. These modules are single or multiple.
  • a layer unit consists of the print head (100), a print head offset device (703), preferably two coaters (101) and an axis (701) to adjust the layer unit in height relative to its attachment point.
  • the coaters (101) are preferably arranged laterally, eg to the right and left of the print head (100). If the control makes it necessary, the coaters (101) can each be arranged at different heights above the layer.
  • the coaters (101) of the layer unit (800) are, for example, about 220 mm wide and thus cover the component dimensions (300).
  • the print head (100) with a print width of 180 mm is also wider than the required component.
  • the printhead can be moved about the center line of the component by 10 mm in the example. Thus, it can be prevented that a defective nozzle leads to a defect in the component, which would go through the entire component (300) and render it useless.
  • the offset mechanism (703) must accurately move the print head (100) so that the print image is applied within an acceptable tolerance from one layer to the next.
  • + - ⁇ are an acceptable field of accuracy.
  • the printhead (100) is located slightly higher than the coater (101) so that it can not come in contact with the powder.
  • Technically useful here are about 2.5 mm.
  • a 300 DPI printhead (100) is employed.
  • the distance of the arranged in the direction of the offset axis nozzles is then 84.6 ⁇ .
  • the height of the layer unit (800) above the attachment point (702) can be adjusted as described via an axis (701) which is part of the layer unit. Since very thin layers are required, good resolution and reproducibility are required here. In the example with the water jacket, the layer unit must have a travel distance of approx. 100 mm. The accuracy should exceed + - lOpm.
  • the usual layer thicknesses for the example task are around 300 ⁇ . Likewise, when demand for higher throughput 400 pm, in the demand for higher accuracy and 250 pm usual.
  • the layer units (800) are arranged on an axis (1000).
  • the suspension point (801) is the carriage of this axle. Using this axis, the layer unit can be moved in the spatial direction perpendicular to the offset (703) and height axis (701).
  • This axis (1000) is the longest axis in the device. Their travel measures several meters. In the example, the layer unit (800) can be moved over a length of 4 meters. The travel axis (1000) is technically designed so that it can carry several layer units. These then move one after the other in the side view.
  • this axle (1000) represents a ball guide in combination with a linear motor on the slide.
  • This arrangement makes it possible in a simple manner to use several slides for several layer units. For each slide, a separate energy chain is led to supply the layer units. Through this, data, energy and fluids reach the layer unit (800).
  • the coaters (101) are supplied with powder via static filling mechanisms.
  • the layer units (800) can place the powder (110) and the printing fluid (109) on any, not necessarily flat surfaces.
  • the coaters (101) generate a planar plane with their lower edge when powder flows out and the layer unit (800) is moved simultaneously.
  • a special construction field tool (500) is used as the surface.
  • This construction field tool according to the invention can be carried out particularly easily. It contains no elements defining the precision of the components.
  • a gutter-like arrangement is used as the construction field tool (500).
  • the opening of the channel can be traversed by a layer unit (800).
  • the walls prevent the powder from spreading perpendicular to the working direction of the layer unit. In the lowest layer of the layer unit, no element of the construction field tool is touched.
  • the construction field tool may be equipped with a bottom (601) that allows the loose powder (603) to drain around the component.
  • the component sinks and is picked up by markers (600) applied in the construction tool. In this case, a defined position is reached.
  • the marks on the component (303) must be made so that no buildup interferes with accurate positioning on the construction field tool (500). If processes with strong adhesions are used, other devices such as compressed air nozzles in the area of the marks (303, 600) must be used.
  • the process can be carried out flexibly.
  • a plurality of layer units (800) can be used in parallel and independently of each other on the track (1000). It is also possible to design the travel axis (1000) so long that several construction field tools can be run over by the layer units. Likewise preferred are devices in which a plurality of construction field tools (500) and a plurality of layer units (800) are used in one line.
  • This arrangement can be used to speed up the process.
  • Two layers (107) are laid on each crossing at the same time.
  • two layers (107) can also be laid simultaneously.
  • the layer units (800) are set by their height axes (701) in the correct spatial position. For this purpose, the first layer unit in the direction of travel sits one layer lower than the following unit. On the return trip, this arrangement is reversed.
  • a further increase in performance of the arrangement can be achieved if the layer units are mirrored over the travel axis (1000). This doubles the possible performance in the simultaneous multiple use of existing device parts (see Figure 9).
  • An array with multiple layer units (800) can also be used to perform maintenance (1200) on a unit while the process continues to run. For this purpose a unit is moved to the edge position. A guard (1201) protects against interference with the system. Now the unit (1200) can be manual or be dismantled semi-automatically. With appropriate design, a quick change of the entire layer unit (1200) is possible. The presented unit is hung up and connected to the system again. Due to the height adjustment (701), the layer unit (800) can also be brought back into the process during the processing of a construction field tool.
  • the device according to the invention makes it possible to operate the plant reliably and with high power.
  • the construction field tools (500) can preferably be designed in such a way that a new construction field tool (500) can be moved intermittently into the working area of the layer units (800) after every completed completion of a component. Such movement of the construction units may be accomplished by a chain link arrangement (1300). The construction units themselves run on rails. A really exact positioning is not necessary. Only the free passage of a layer unit (800) through the construction field tools (500) used in this exemplary embodiment is to be ensured.
  • the construction field tool (500) can be connected to other plates on the displacement system. This also allows rapid use of other construction field tool (500).
  • the space in which the actual printing process takes place can be accommodated in a housing (1301).
  • the atmosphere can be easily controlled to keep the printing process stable.
  • dusts coming out of the process room (1301) can not affect the environment.
  • automatically operable flaps and gates allow access to the construction site tools (500).
  • Access flaps (1201) for the layer units (800) are present, which make it possible to move the layer units (800) in the maintenance position.
  • Another station of this production line is automatic pre-unpacking (1401).
  • a construction field tool (500) which has a bottom (601) which can be switched to powder (602).
  • the loose powder (603) trickles away from the component.
  • This process can be additionally supported by a vibration device.
  • the component (300) drops to the above-described marks (600).
  • Small air nozzles clean the contact surfaces in this area. A part of the contacts is executed as a sphere, a part as a straight surface. This results in a reproducible defined position.
  • the powder (603) draining from the component (300) is collected below the device (604). It can be fed with screw conveyors or belts to a powder recycling device.
  • the pre-packaging station (1401) is preferably also equipped with a housing. Here, especially dusts are kept away from the ambient air. Likewise, there are automatic gates again.
  • the actual unpacking / breaking station (1402) is a robot cell.
  • a robot arm cleans areas with a compressed air jet, where the component (300) is to be gripped afterwards.
  • a second robot arm grips the component (300) here with a pneumatic gripper.
  • the second robot moves the component (300) past the compressed air nozzle of the first robot and thus completely cleans the component of buildup.
  • the cleaning is carried out due to the similarity of the components controlled by a teach-in, without using the exact geometric data of the component (300).

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

Abstract

La présente invention concerne un procédé et un dispositif de fabrication de pièces en 3D (300). Ledit dispositif comprend plusieurs outils de à panneau de support (500) qui sont disposés mobiles et au moins une unité d'application de couches (800) qui est disposée mobile.
EP17718005.6A 2016-03-09 2017-03-08 Procédé et dispositif de fabrication de pièces en 3d au moyen d'outils à panneau de support Pending EP3426472A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016002777.0A DE102016002777A1 (de) 2016-03-09 2016-03-09 Verfahren und Vorrichtung zum Herstellen von 3D-Formteilen mit Baufeldwerkzeugen
PCT/DE2017/000061 WO2017152897A1 (fr) 2016-03-09 2017-03-08 Procédé et dispositif de fabrication de pièces en 3d au moyen d'outils à panneau de support

Publications (1)

Publication Number Publication Date
EP3426472A1 true EP3426472A1 (fr) 2019-01-16

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Application Number Title Priority Date Filing Date
EP17718005.6A Pending EP3426472A1 (fr) 2016-03-09 2017-03-08 Procédé et dispositif de fabrication de pièces en 3d au moyen d'outils à panneau de support

Country Status (5)

Country Link
US (2) US11975487B2 (fr)
EP (1) EP3426472A1 (fr)
CN (1) CN108712958A (fr)
DE (1) DE102016002777A1 (fr)
WO (1) WO2017152897A1 (fr)

Families Citing this family (34)

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US11975487B2 (en) 2024-05-07
US20240149527A1 (en) 2024-05-09
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US20190084229A1 (en) 2019-03-21
DE102016002777A1 (de) 2017-09-14

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