WO2019149302A1 - Dispositif de protection destiné à servir d'appui à plusieurs pièces obtenues par fabrication additive - Google Patents

Dispositif de protection destiné à servir d'appui à plusieurs pièces obtenues par fabrication additive Download PDF

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Publication number
WO2019149302A1
WO2019149302A1 PCT/DE2019/000014 DE2019000014W WO2019149302A1 WO 2019149302 A1 WO2019149302 A1 WO 2019149302A1 DE 2019000014 W DE2019000014 W DE 2019000014W WO 2019149302 A1 WO2019149302 A1 WO 2019149302A1
Authority
WO
WIPO (PCT)
Prior art keywords
components
support device
support
potting compound
support plate
Prior art date
Application number
PCT/DE2019/000014
Other languages
German (de)
English (en)
Inventor
Martin Fessler-Knobel
Steffen Schlothauer
Christian Liebl
Johannes Casper
Thomas Peschke
Original Assignee
MTU Aero Engines 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 MTU Aero Engines AG filed Critical MTU Aero Engines AG
Publication of WO2019149302A1 publication Critical patent/WO2019149302A1/fr

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
    • B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
    • 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
    • B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
    • B22F10/47—Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
    • 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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02—Wire-cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—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
    • 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
    • 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

  • Support device for supporting a plurality of additively manufactured components
  • the present invention relates to a supporting device for supporting a plurality of additively manufactured components.
  • the object underlying the invention is to avoid the above disadvantages in Trennverfah- ren of additively manufactured components.
  • a support device according to claim 1 and a separation method according to claim 10 is proposed. Further embodiments of the support device or the separation process can be found in the dependent claims.
  • the support device In a supporting device for supporting a plurality of additive-fabricated components, the support device is designed to frictionally and / or form-fittingly and / or materially surround the components so that the components remain connected to the support device when the components of a associated building board form are separated.
  • the support device thus serves to secure components for the components still connected to the construction platform so that the fall of individual components after separation from the construction platform can be prevented.
  • the support device is thus a device provided separately from the build platform, which is positioned in a suitable manner relative to the build platform and the plurality of components, in particular after completion of the additive manufacturing process, so that the frictional and / or positive or material-locking connection with the components can be produced.
  • the support device may have a supporting frame surrounding the components.
  • the support frame can be connected or connected to the construction platform.
  • the circumferential support frame can be filled or filled with a potting compound, such that the components arranged within the support frame are in contact with the potting compound.
  • the support frame is designed in particular as polygonal, in particular square frame.
  • the support frame has a plurality, in particular four or more, interconnected frame walls. The frame walls, together with the building platform or together with a support frame floor, a kind of tub or container into which or the potting compound can be filled. It goes without saying that a suitable seal can be provided at the transition between the support frame and the construction platform in order to prevent escape of potting compound.
  • the support frame is connected to the building platform or fixed to the build platform prior to the introduction of the potting compound. If a container is used which has a support frame bottom, it is also conceivable to first infest this container with a potting compound and then to lower the construction platform from above onto the support frame. In this case, components connected to the construction platform are immersed in the potting compound.
  • the support frame with a potting compound cured therein may be adapted to be separated from the build platform together with the components received in the potting compound.
  • the support frame is designed such that it is removable after curing of the potting compound and the separation of the components received in the potting compound takes place after removal of the support frame.
  • the entire composite of hardened potting compound and all components can be separated from the build platform in a single process step. As a result, the several components are separated from the build platform and received or embedded in the hardened potting compound.
  • the potting compound may be a liquid that is temporarily or permanently curable.
  • Conceivable liquids can be: molten wax, which hardens on cooling; Water that is cooled after being poured until it is firmly sealed in the frozen state; Plastic that cures when it cools.
  • the support device may comprise a support plate in which a plurality of receptacles are formed, wherein each receptacle is adapted to receive one of the plurality of components.
  • the receptacles can have a shape which is designed to be complementary to a component section, such that the components are held non-positively and / or positively in the receptacles of the support plate.
  • Such a support plate can be used as an alternative to a potting compound.
  • the support plate can be used with or without rotating support frame.
  • the support plate can be used for example in an associated support frame, so that the support frame together with the support plate rela tive to the construction platform and the components can be fixed.
  • the support plates can be reusable, so that a support plates can be used again after the removal of the components 12 for securing components during separation from the construction platform.
  • the support plate may be adapted to be separated from the building board together with the components accommodated in the receptacles.
  • the components are then held in a form-fitting manner in the receptacles of the support plate so that falling off of individual components during separation from the construction platform is prevented.
  • the components can be transported together with the support plate and optionally with an associated support frame. An intermediate storage of the components in the support plate is also conceivable until the individual components are subjected to further processing steps.
  • the support device is formed by the entirety of the web-like connections, which are materially connected to the components. After separating the components from the build platform there is a kind of matrix of components which are interconnected by the web-like connections. The web-like connections can then be removed in order to be able to process the individual components further.
  • a method of separating a plurality of additively manufactured components from a common build platform may include the steps of:
  • a support device already described above can be used.
  • the components surrounding support frame of the support device can be arranged, which is filled with a potting compound, so that a material-locking connection is made between the potting compound and the components.
  • a support plate of the support device can be provided, wherein the support plate has a plurality of receptacles, and wherein the support plate is arranged so that in each receptacle a component is partially or completely received, so that between each component and the support plate is a frictional and / or positive connection is made.
  • the components separated from the building board can be held in the potting compound or in the support plate.
  • the components separated from the construction platform can be transported together with the hardened potting compound or together with the support plate.
  • the components separated from the construction platform can be separated from the casting compound or separated from the support plate.
  • FIG. 1 shows in subfigures A) to E) in a sectional view schematically and greatly simplified a construction platform with additively manufactured components and the method for separating the components using a support device which has a support frame and a casting compound.
  • FIG. 2 shows in subfigures A) to E) in a sectional view schematically and greatly simplified a construction platform with additively manufactured components and the method for separating the components using a support device comprising a support frame, a support frame bottom and a potting compound ,
  • Fig. 3 shows in the sub-figures A) to F) in a sectional view schematically and greatly simplifies a construction platform with additively manufactured components and the method for separating the components using a support device having a support plate and an optional support frame.
  • Fig. 4 shows schematically and greatly simplified a sectional view through the support device of Fig. 3C approximately corresponding to the section line IV-IV.
  • FIG. 5 shows, in a sectional view schematically and greatly simplified, a possible temporary storage of components which are accommodated in a supporting device according to FIG. 3.
  • a construction platform 10 is shown schematically and simplified, on which a plurality of additively manufactured component 12 are arranged.
  • the additive-fabricated components 12 are fixed, in particular material-locking, to the build platform 10.
  • the components 12 are shown here purely by way of example as simple cylindri cal body, which are representative of every possible component, which by means of ad- can be produced by the ditive method.
  • the components 12 may in particular be components for gas turbines, in particular for aircraft gas turbines.
  • a support device 14 is arranged on the construction platform 12.
  • the support device on a support frame 16 which surrounds the components 12.
  • the support frame 16 forms a kind of peripheral boundary wall, within which the components 12 are arranged.
  • a space formed by the support frame 16 and the build platform 10 is filled with a potting compound 18.
  • the casting compound 18 is initially liquid and surrounds the components 12. After curing of the casting compound 18, the components 12 are materially connected to the casting compound 18.
  • a separation process can be carried out in which the components 12 are separated from the build platform 10.
  • the separation of the components 12 from the build platform 10 takes place, for example, by means of WEDM (Wire Electrical Discharge Machining, spark erosion by means of a wire).
  • WEDM Wired Electrical Discharge Machining, spark erosion by means of a wire.
  • the support frame 16 can also be removed only after the separation process, as illustrated in Fig. ID.
  • the components 12 are securely held in this condition in the United casting compound 18, although no connection to the platform 10 is made.
  • the potting compound 18 can then be removed, so that the individual components 12 are again freely accessible and can be supplied to further processing steps.
  • FIG. 2A shows the same starting position with a construction platform 10 and a plurality of components 12 as in FIG. 1A.
  • a support device 14 is provided which has a support frame 16 and a support frame bottom 20.
  • the support frame 16 and the support frame base 20 form a container or a trough 22.
  • the container 22 can be filled with the already known potting compound 18.
  • the rotated by 180 ° construction platform 10 is lowered with the firmly associated components 12 from above into the potting compound. It can also be said that the components 12 are immersed in the potting compound 18 ahead with their upper ends 12a.
  • the components 12 are separated from the build platform 10.
  • the components 12 are generally not flush with the plane of the build platform, but remain a small stump or l2b approach to the build platform. This is shown by way of example only in FIG. 2C, even if this of course applies to the other separation processes described here, in which the schematic representation could suggest a separation flush with the plane of the construction platform (see in particular FIG. 1C or 3D).
  • the components 12 remain secured in the hardened potting compound 18 and the building board 10 can be removed, which is illustrated in Fig. 2D.
  • the recorded in the potting compound 18 in the container 22 components 12 can be temporarily transported or stored in this state.
  • the individual components 12 are again freely accessible and can be supplied to further processing steps.
  • the removal of the hardened potting compound can take place, for example, by heating, so that the potting compound becomes liquid and the components can be removed from the liquid potting compound.
  • wax is considered as potting compound or water that is frozen and thawed again.
  • potting compounds made of a plastic.
  • casting compounds are used, which are thermally decomposed, for example by a burning process, without this the components 12 are damaged.
  • the support device 14 comprises at least one support plate 24.
  • receptacles 26 are provided which are matched to the shape of the components 12, in particular complementary ones.
  • the support plate 24 is arranged with their receptacles 26 so that in each receptacle 26, a component 12 is received.
  • the support plate 24 nen support frame 16 (shown in phantom), with which the support plate 24 can be supported on the platform 10.
  • the construction platform 10 and the support plate 24 can then be rotated together by 180 °, so that the components are arranged with their upper ends 12a downward (FIG. 3C). Thereafter, the building board 10 can be separated from the components 12, which is illustrated in Fig. 3D. In this separation process, the components 12 in the support plate 24, in particular in their respective receptacles positively and / or positively received and secured.
  • the support plate 24, possibly with a support frame 16, can then be transported with the components 12 received therein and temporarily stored (FIG. 3E). From the support plate 24, the individual components 12 can be easily removed and further processing steps are supplied. (Fig. 3F).
  • Fig. 4 shows in a schematic and simplified representation a section along the section line IV-IV of Fig. 3C. Shown is the support plate 24 with a plurality of receptacles 26 and received therein components 12. The support plate 24 is surrounded by a circumferential support frame 16. Referring to Figs. 3 and 4, it should be noted that the support frame 16 and the support plate 24 may be formed as a unit. Alternatively, it is also conceivable that different support plates with differently shaped receptacles can be exchangeably connected to a (same) support frame 16. In the example of Fig. 4, the support plate 24 is shown with sixteen receptacles 26.
  • a support plate 24 may also have more or fewer receptacles 26.
  • the number and arrangement of the receptacles 26 depends, in particular, on how many components 12 are manufactured on a common construction platform 10 and what dimensions these components 12 have.
  • 5 shows schematically and simplified an example of a transport or bearing arrangement of support devices 14.
  • the support devices 14 are those corresponding to FIG. 3 with a support plate 24 and a support frame 16.
  • the support frame 16 are in particular so dimensioned and formed so that the support devices 14 are stackable.

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

Abstract

L'invention concerne un dispositif d'appui (14) destiné à servir d'appui à plusieurs pièces (12) obtenues par fabrication additive, le dispositif d'appui (14) étant conçu pour entourer au moins en partie les pièces (12) à force et/ou par coopération de formes et/ou par liaison de matière, de telle sorte que les pièces (12) restent reliées au dispositif d'appui (14) lorsque les pièces (12) sont séparées d'une plateforme de construction (10) correspondante.
PCT/DE2019/000014 2018-01-30 2019-01-18 Dispositif de protection destiné à servir d'appui à plusieurs pièces obtenues par fabrication additive WO2019149302A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018201415.9A DE102018201415A1 (de) 2018-01-30 2018-01-30 Stützvorrichtung zum Abstützen von mehreren additiv gefertigten Bauteilen
DE102018201415.9 2018-01-30

Publications (1)

Publication Number Publication Date
WO2019149302A1 true WO2019149302A1 (fr) 2019-08-08

Family

ID=65411693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2019/000014 WO2019149302A1 (fr) 2018-01-30 2019-01-18 Dispositif de protection destiné à servir d'appui à plusieurs pièces obtenues par fabrication additive

Country Status (2)

Country Link
DE (1) DE102018201415A1 (fr)
WO (1) WO2019149302A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007033434A1 (de) * 2007-07-18 2009-01-22 Voxeljet Technology Gmbh Verfahren zum Herstellen dreidimensionaler Bauteile
US8980150B2 (en) * 2012-03-08 2015-03-17 Casio Computer Co., Ltd. Three-dimensional shaping method and shaped object complex as well as three-dimensional shaping apparatus
DE102016204462A1 (de) * 2015-03-31 2016-10-06 Krause DiMaTec GmbH Verfahren zum Herstellen eines Bauteils sowie Trägerplatte zum Tragen von additiv zu fertigenden Bauteilen, ausgelegt zum Durchführen eines solchen Verfahrens
US20170297097A1 (en) * 2016-04-14 2017-10-19 Desktop Metal, Inc. Fabricating an interface layer for removable support

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6270353B2 (ja) * 2013-06-28 2018-01-31 シーメット株式会社 三次元造形体およびサポート形成方法
WO2017143013A1 (fr) * 2016-02-16 2017-08-24 Arizona Board Of Regents On Behalf Of Arizona State University Supports solubles à procédé régulé lors de l'impression 3d de composants en métal ou en céramique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007033434A1 (de) * 2007-07-18 2009-01-22 Voxeljet Technology Gmbh Verfahren zum Herstellen dreidimensionaler Bauteile
US8980150B2 (en) * 2012-03-08 2015-03-17 Casio Computer Co., Ltd. Three-dimensional shaping method and shaped object complex as well as three-dimensional shaping apparatus
DE102016204462A1 (de) * 2015-03-31 2016-10-06 Krause DiMaTec GmbH Verfahren zum Herstellen eines Bauteils sowie Trägerplatte zum Tragen von additiv zu fertigenden Bauteilen, ausgelegt zum Durchführen eines solchen Verfahrens
US20170297097A1 (en) * 2016-04-14 2017-10-19 Desktop Metal, Inc. Fabricating an interface layer for removable support

Also Published As

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DE102018201415A1 (de) 2019-08-01

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