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WO2018001705A1 - Dispositif pour impression 3d et procédé - Google Patents

Dispositif pour impression 3d et procédé Download PDF

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Publication number
WO2018001705A1
WO2018001705A1 PCT/EP2017/064236 EP2017064236W WO2018001705A1 WO 2018001705 A1 WO2018001705 A1 WO 2018001705A1 EP 2017064236 W EP2017064236 W EP 2017064236W WO 2018001705 A1 WO2018001705 A1 WO 2018001705A1
Authority
WO
WIPO (PCT)
Prior art keywords
space
base material
process chamber
construction
component
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.)
Ceased
Application number
PCT/EP2017/064236
Other languages
German (de)
English (en)
Inventor
Bernd Burbaum
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2018001705A1 publication Critical patent/WO2018001705A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • 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
    • 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
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/16—Form or construction for counteracting blade vibration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B22F12/53—Nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/22—Manufacture essentially without removing material by sintering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05D2230/233—Electron beam welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05D2230/234—Laser welding
    • 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 present invention relates to a device for the additive production of a component from a, in particular pulverulent, base material and a corresponding system. Furthermore, the present invention comprises a method for additive production or a method for operating the device.
  • Said component is preferably intended for use in egg ⁇ ner turbomachine, in particular in a gas turbine ⁇ .
  • the component expediently consists of a superalloy, in particular a nickel- or cobalt-based superalloy.
  • the superalloy may be precipitation hardened or precipitation hardenable, for example, by the ⁇ or ⁇ 'phase or its phase precipitate of the corresponding superalloy.
  • the component is preferably used in a hot gas path or hot gas region of a turbomachine, such as a gas turbine.
  • Component is built up in layers in a powder bed.
  • the structure is carried out stepwise, wherein in one step, a powder layer is applied.
  • this layer is giestrahl, for example a laser or electron beam "scanned” with an energy and thereby locally melted and solidified.
  • An ⁇ closing a substrate or build platform is again ⁇ brings a layer thickness corresponding amount and repeats these steps until the finished component is set up.
  • additive manufacturing A method for selective laser melting is known, for example, from EP 2 601 006 B1.
  • Additive manufacturing processes (“additive manufacturing”) have proven to be particularly advantageous for complex or filigree components, for example labyrinthine structures, cooling structures and / or lightweight structures, in particular additive manufacturing by means of a particularly short chain of process steps advantageous since locations of manufacture or production step of a component can take place directly on the basis of a corresponding CAD file.
  • the additive manufacturing especially advantageous for the development ⁇ development or manufacture of prototypes, which for example for reasons of cost by means of conventional subtractive or chipping method or casting technology can not or can not be produced ef ⁇ ficient.
  • a disadvantage of conventional powder bed-based manufacturing methods is known to be the restriction to a given direction in the construction of the components or components. Accordingly, the construction direction is defined by the powder bed or defined by the lowerable building platform construction direction. This limits the versatility powder bed ⁇ based manufacturing processes and the corresponding system technology crucial.
  • the preferential direction of the body shall, in particular ⁇ sondere when be provided construction of "overhanging" components or the construction of structures having overlapping, support structures, as for example, the SLM process needs a fes ⁇ tes, not pulverulent substrate.
  • the structure of support structures (additional) time and re- sources-consuming.
  • even the supporting structures certain geometrical constraints and subjected to need after the construction of the entire device also will be removed at ⁇ manoeuvrable from the actual component section again.
  • One aspect of the present invention relates to an apparatus for the additive production of a component from a, in particular pulverulent, base material.
  • Vorrich ⁇ processing may be an extension of a conventional system for additive manufacturing.
  • the device comprises a process chamber or installation space wall which defines a construction space for the additive construction of the component.
  • the process chamber is further designed to hold the base material during an additive production in the installation space, so that the base material can be solidified, expediently by means of the ad ⁇ ditive structure.
  • the solidification is preferably carried out by means of a solidification device, for example a beam hardening device with a laser or electron beam.
  • the device further comprises a controller for the process chamber, wherein the space is formed via the controller, for example via a robot arm, preferably arbitrarily, alignable or orientable in space.
  • the process chamber or only a base plate of the same may be attached to the controller and / or the robot arm, so that the installation space is in accordance with any bigen or predetermined direction can be aligned in space.
  • the process chamber comprises a base plate, via which the process chamber can be aligned in space.
  • the said base plate is controllable and connected to the controller, so that a change in the orientation of the base plate causes a change in the orientation of the installation space.
  • the base plate may be a base plate and limit the space, for example, le ⁇ diglich on one side. According to this embodiment, other side walls of the wall or the installation space can be designed differently with advantage. This may be particularly expedient in order to keep the said further side walls permeable or transparent to an energy beam of a solidification device.
  • the base plate is preferably metallic and serves From ⁇ line of heat which is required for a reliable and expedient ⁇ ssige "powder consolidation".
  • the base plate has an inlet, through which the base material can be conveyed into the space.
  • the base material can be conveyed or introduced into the installation space by means of a powder conveying device.
  • the process chamber has an outlet, through which, for example, superfluous base material or powder can be removed from the installation space.
  • the process chamber may further include a powder valve or a corresponding closable opening.
  • the base plate acts as a substrate for the additive structure of the component or is designed accordingly.
  • the device comprises a distribution device such as a vibrating plate, which is designed to share the base material in the installation space, in particular in layers, to ver ⁇ .
  • the device may comprise, for example, a sieve or a corresponding guide or dispenser for the base material.
  • the process chamber comprises at least one side wall which is permeable to an energy beam of a beam hardening device.
  • Said Strahlverfes ⁇ actuating device may be, for example, a laser and / or electron beam device, which are Hérange ⁇ subjected, for example in the SLM-method and the EBM method in conventional equipment for solidification of the base material or powder.
  • the process chamber is permeable except for the base plate for the energy beam.
  • the process chamber is cube-shaped, wherein only one side wall of the cube, which corresponds to the base plate, is connected to the controller. All other, in particular five, the side walls are front ⁇ preferably permeable to the correspondingly applied for the selective solidification of laser or electron beam, or at least sufficiently transparent, so that the base material can be subsequently solidified by irradiation through a side wall of the Pro ⁇ process chamber therethrough.
  • the process chamber is formed spherical or cylindrical.
  • the device comprises a device for prefixing the base material in front of the respective one
  • Solidify for example, at predetermined locations of an additively structure to be built in the space.
  • the structure to be built up preferably corresponds either to the base plate itself or to a part of the component or component which has already been constructed and preferably solidified thereon.
  • a medium such as a fluid, a FLÜS ⁇ stechnik, an aerosol or a mist can be introduced eigesprüht or otherwise in the installation space for the pre-fixing of the Ba ⁇ sismaterials, wherein the subsequent according introduced base material adheres preferably to it and is pre-fixed way.
  • the device comprises a nozzle through which the medium or fluid can be applied.
  • Another aspect of the present invention relates to a system comprising the described apparatus, further comprising a beam hardening means for selectively solidifying the base material, for example by means of a laser and / or electron beam to ⁇ collectively.
  • system further comprises the distribution device for distributing the base material in
  • the system is a plant or device for selective laser melting and / or electron beam melting.
  • Another aspect of the present application relates to a method for additive production of the component by means of Device comprising defining a first construction direction for the component to be produced according to additive by corresponding alignment of the installation space in the room, in ⁇ example, on the base plate as described above.
  • the method further comprises the introduction of a first batch of, preferably powdery, base material in the space for the additive structure.
  • the method further comprises, preferably layer-like or layer by layer, distributing the introduced first batch in the installation space.
  • the method further comprises selectively solidifying the distributed first batch with the described beam-solidification device.
  • the distribution of the introduced first batch can, for example, also be carried out automatically by the process of introducing the base material.
  • the Basisma ⁇ TERIAL can be introduced in such a way are injected or sprayed to automatically present in the space according to the desired distribution.
  • a medium for said pre-fixing, applied to said structure to which at ⁇ closing the introduced powder adheres.
  • the medium is wearing order in a way that the medium taken from the surface of the structure talking ent ⁇ next to generating contour of the component.
  • the structure by means of a, examples game as electromagnetic, means of the apparatus magnetized so that the subsequently introduced Basisma ⁇ TERIAL anhaf- to the already generated contours of the structure tet.
  • the method comprises - after the selective solidification of the first batch, defining, or distribution and the selective solidification of a further, second batch of the base material for the additive producing the component, wherein for the structure of the other batch of the base ⁇ materials , a second, also arbitrary, construction direction different from the first construction direction is defined.
  • This embodiment is generally of interest for all applications in which the advantages of powder-bed-based processes, in particular the advantages of the SLM process, are to be utilized, for example over build-up welding processes (such as LMD: "laser metal deposition”) affect the surface quality and the design freedom and contour resolution.
  • Insbesonde ⁇ re able to provide new opportunities for the service area and / or in the repair of gas turbine components.
  • the method in particular before the selective solidification, comprises the pre-fixing of the base material at predetermined locations of the corresponding structure to be built up in the installation space.
  • a stratified order or at least a layer ⁇ -like distribution of the base material on the structure or component can be realized by the Vorfi- Xieren, so that the powdered mate rial ⁇ particular not trickles down to the component, but remains adhered.
  • the presented method may include removing excess base material by any suitable means.
  • Embodiments, features and / or advantages relating in the present case to the device or the installation may also relate to the method or vice versa.
  • FIG. 1 shows a schematic view indicating the function ⁇ oncaster an inventive apparatus and an inventive method.
  • FIG. 2 shows a schematic flow diagram of the method according to the invention.
  • FIG. 1 shows a plant or device 100 according to the invention for additive production.
  • the system 100 is shown at least partially.
  • the additive production relates preferably to components or components of turbomachines, preferably to parts which are used in the hot gas path of gas turbines.
  • the additively manufactured components are preferably made of superalloys, for example, nickel- or cobalt-based, precipitation-hardened materials.
  • FIG. 1 a method according to the invention for the production of said components will be described.
  • it may be an alternative, powder bed-based process.
  • the method according to the invention can be an improved and / or extended method for selective laser melting (SLM) or electron beam melting (EBM).
  • SLM selective laser melting
  • EBM electron beam melting
  • FIG. 1 shows a component BT, which for example indicates a turbine blade.
  • the plant 100 comprises in particular a device 10 according to the invention for the plant 100, which will be described below.
  • the plant 100 further comprises a beam hardening device 30.
  • the beam hardening device 30 is likewise shown only schematically and / or partially. In particular, only an indicated beam path for a laser or electron beam unit can be seen, which can preferably be used for melting and subsequent solidification of a base material or powder 1.
  • the base material 1 is a powdery or granular base material, in particular a convenient Ba ⁇ sismaterial for the said components.
  • the apparatus 10 comprises a process chamber 2.
  • the process chamber 2 ⁇ is preferably represented as a cube or box.
  • the component BT is preferably within the process chamber
  • the process chamber 2 defines a construction space 3, in which the component BT can be constructed in particular additive.
  • the process chamber 2 can (as shown in FIG. 1) be of cube-like design and comprise six cube surfaces, where ⁇ represents one of these surfaces (left-hand surface in FIG. 1 only schematically indicated) a base plate or platform 4 and the remaining surfaces or sides of the Process chamber 2, for example made of glass, are made.
  • ⁇ represents one of these surfaces (left-hand surface in FIG. 1 only schematically indicated)
  • a base plate or platform 4 and the remaining surfaces or sides of the Process chamber 2, for example made of glass, are made.
  • at least one of the side surfaces preferably the upper one (see FIG. 1), is permeable or transparent to a laser or electron beam of the solidifying device 30, in order to introduce correspondingly energy or heat into the process chamber 2 and to produce the component BT.
  • the restriction device to the energy beam of the Verfesti- 30-permeable side walls of the process chamber 2 from the base plate 4 are designed to be detachable, beispielswei ⁇ se in order to facilitate a subsequent separation of the component BT from the process chamber, or for example, in order - for the additive built-up - on parts of the process chamber (examples play, the upper side wall (lid) to dispense.
  • the lid or the upper side wall of the process chamber 2 can therefore be dispensed with, since the base material 1 at entspre ⁇ chender orientation of the process chamber 2 is also held in a simple manner in the space can be.
  • any other arbitrary shape beispielswei ⁇ se be provided a spherical or cylindrical shape. This can be particularly advantageous in order to provide a base material in layers for the additive structure. Alternatively, other convenient forms may be provided.
  • the apparatus 10 further comprises a powder delivery device 40.
  • the powder delivery device 40 comprises a powder reservoir and means with which the powder 1 for the component BT can be conveyed, for example, via a hose or another line into the process chamber.
  • the powder delivery device 40 may comprise a spraying device, a distributor or a nozzle 8.
  • the powder is introduced into the process chamber 2 in particular for the additive production of the component through an inlet 5.
  • the inlet 5 is preferably arranged in the base plate 4.
  • the inlet 5 may also be formed closable excluded, for example by means of a valve (not labeled ex ⁇ plicitly).
  • the process chamber 2 may further comprise an outlet for the base material, for example, excess base Mate ⁇ rial for the production of the additive component BT retrospectively lent to remove. Removal of excess powder may even be necessary to hold a plurality of outer surfaces of the component BT, which are to be additively be coated with material ⁇ accessible.
  • the method described each be ⁇ arbitrary spatial direction enables a particular orientation of the construction space 3 according to (see arrow A in Figure 1).
  • a "quasi-isotropic" powder bed based manufacturing can be provided supply process, which is not to Be ⁇ limitations of conventional powder bed based methods, such as the provision of supporting structures for overhangs or undercuts or the restriction is bound to certain geometries.
  • the device 10 further comprises a controller 20.
  • the controller 20 preferably comprises a physical and / or mechanical control for moving and / or aligning the
  • the controller 20 is coupled to the described base plate 4 or fixed thereto, so that the space 3 can be aligned or oriented via a movement of the base plate 4.
  • the controller 20 may further be a robot controller or implemented by a robot or robotic arm.
  • the device 10 furthermore has a distribution device 7.
  • the distribution device 7 may for example be or comprise a vibrating plate.
  • the distribution device 7 may further be attached to the base plate 4 and this me ⁇ mechanically stimulate the space 3 corresponding to distribute the powder.
  • the distribution of the powder 1 through the vibration plate can he follow ⁇ (pneumatic) at ⁇ play of which are known to the skilled person means, for example eccentric motors, electromechanical, piezoelectric and / or for example by means of compressed air.
  • the distribution device 7 or said vibrating plate is designed in such a way that powder or base material 1 can be distributed in the construction space 3 in layers or at least in the manner of a layer. This is preferably enables before ⁇ by a shaking movement of the entire construction space 3 via a movement of the base plate. 4
  • the imaginable or controllable process chamber 2 presented can replace the stationary powder bed of conventional melting processes.
  • a means for pre-fixing of the powder to the structure to be established in the process chamber does not ex ⁇ plicitly shown can be provided for example.
  • the device for pre-fixing may be located in the vicinity of the powder inlet 5 or may also be designated by the reference numeral 5.
  • said device is arranged on or in the base plate 4.
  • structure then preferably designates either the base plate 4 or an already partially constructed portion of the component BT.
  • Said device for prefixing the base material or powder 1, in particular at predefined locations in the installation space 3 can likewise be embodied by the nozzle 8 or a similar device and, for example, a fluid or another suitable medium, for example a fluid, a liquid, an aerosol or a mist in the space 3 in spraying, injecting or otherwise introducing the installation space, wherein the subsequently introduced base material vorzugswei ⁇ se adheres to the corresponding structure and is fixed.
  • Said medium may in particular be ⁇ wear in such a way that the medium taken from the area of the structure corresponding to the next to be generated contour of the component BT.
  • the orientation of the process chamber 2 and / or the installation space 3 is changed, for example by 180 °, thereby trickling and adhering powder already present in the installation space 3 over the predefined locations remains.
  • Basisma ⁇ can magnetically, electromagnetically or electrostatically follow ER "Vorfixie ⁇ rung", for example by the means for presetting, the structure on which to adhere the powder magnetized, or charging, terial 1 adheres to the already generated contours of the structure.
  • FIG. 2 shows a schematic flow diagram for the additive manufacturing method according to the invention.
  • the beschrie ⁇ surrounded method may be a method for operating the device 10 degrees.
  • the method described comprises the processin ⁇ ren a first assembly direction AR for the additive component to be produced BT via a corresponding orientation of the construction space 3 in the room.
  • the space 3 is - as described above - via a movement or change in the orientation of the process chamber 2, in particular the base plate 4 allows (see step a) in Figure 2).
  • the inventive method further comprises Einbrin ⁇ gene of a first batch of a powdered base material in the construction space 3 for the construction of the additive component BT (see. Step b) in Figure 2).
  • the powder or base material 1 is introduced, for example, via a nozzle or other suitable means in the space 3 ⁇ .
  • the method further comprises distributing the introduced first batch in the installation space 3 (see method step c) in FIG.
  • this process step is optional.
  • the distribution of the base material of the first batch can be carried out in particular simultaneously or through the step of introducing, so that the process steps b) and c) represent the same process step.
  • step c x environmentally method of the invention combines the pre-fixing of the Ba ⁇ sismaterials a batch at predetermined positions of the additive to be established structure in the construction space 3, as described above.
  • the method further comprises selectively solidifying the distributed or loaded first batch with the described shot peening device 30 (see method step d) in Figure 2).
  • This process step is in particular ⁇ sondere necessary to produce the component BT, for example, be ⁇ from the base plate 4 or on the basis of an already existing or partially constructed structure.
  • the component BT in Figure 1 for example, arranged horizontally, for example, a base of the illustrated turbine blade (cohesively) is connected to the base plate 4.
  • the turbine component can advantageously be further built up on any arbitrary side, for example by selective solidification on arbitrary surfaces. In the case of conventional powder bed-based processes, this is not possible in particular, since the process is intrinsically linked to a specific construction direction.
  • the method further comprises, in particular for the complete additive construction of the component, after solidifying the first batch repeating at least steps a), b) and d) with a further, second batch of the base material or powder 1 (see method step e) in FIG. 2).
  • any desired mounting direction defined by a user or user of the method can be selected. This works in particular by a corresponding control or orientation of the process chamber 2 via the controller 20 (see above).
  • the method may, for example, for the construction ei ⁇ ner second layer for the component, a second aestheticrrich- direction AR ⁇ , choose which is different from the first (defined) construction direction AR (see method step e) in Figure 2).
  • the invention is not limited by the description based on the embodiments of these, but includes each new feature and any combination of features. This includes in particular any combination of features in the patent claims, even if this feature or combination itself is not explicitly stated in the patent claims or exemplary embodiments.

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

Abstract

La présente invention concerne un dispositif (10) de fabrication par impression 3D d'un élément structural (BT) dans un matériau de base (1), notamment pulvérulent, comprenant une chambre de traitement (2) qui définit un espace de fabrication (3) destiné à l'impression 3D de l'élément structural (BT), la chambre de traitement (2) étant conçue pour maintenir le matériau de base (1) pendant l'impression 3D dans l'espace de fabrication (3) de manière telle que le matériau de base (1) puisse se consolider, et une commande (20) destinée à la chambre de traitement (2), l'espace de fabrication (3) étant conçu pour pouvoir être orienté spatialement par l'intermédiaire de la commande (20) de la chambre de traitement.
PCT/EP2017/064236 2016-07-01 2017-06-12 Dispositif pour impression 3d et procédé Ceased WO2018001705A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016212036 2016-07-01
DE102016212036.0 2016-07-01

Publications (1)

Publication Number Publication Date
WO2018001705A1 true WO2018001705A1 (fr) 2018-01-04

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