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WO2019166166A1 - Retrait des structures de support de composants fabriqués par impression 3d - Google Patents

Retrait des structures de support de composants fabriqués par impression 3d Download PDF

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Publication number
WO2019166166A1
WO2019166166A1 PCT/EP2019/051972 EP2019051972W WO2019166166A1 WO 2019166166 A1 WO2019166166 A1 WO 2019166166A1 EP 2019051972 W EP2019051972 W EP 2019051972W WO 2019166166 A1 WO2019166166 A1 WO 2019166166A1
Authority
WO
WIPO (PCT)
Prior art keywords
printed object
support structures
removal
printing
post
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/EP2019/051972
Other languages
German (de)
English (en)
Inventor
Emmanuel Conter
Matthias Herker
Bernhard Schimmer
Lars Reichelt
Michael Bauer
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.)
Audi AG
Original Assignee
Audi 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 Audi AG filed Critical Audi AG
Publication of WO2019166166A1 publication Critical patent/WO2019166166A1/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
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/62—Treatment of workpieces or articles after build-up by chemical means
    • 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
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/68—Cleaning or washing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/80—Plants, production lines or modules
    • B22F12/82—Combination of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/86—Serial processing with multiple devices grouped
    • 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
    • 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
    • B29C64/188—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
    • 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
    • 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • 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
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • B22F3/1258—Container manufacturing
    • B22F3/1283—Container formed as an undeformable model eliminated after consolidation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/35—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/379—Handling of additively manufactured objects, e.g. using robots
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching
    • C23F1/04—Chemical milling
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/08—Apparatus, e.g. for photomechanical printing surfaces
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
    • G05B19/4099—Surface or curve machining, making 3D objects, e.g. desktop manufacturing
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45221—Edm, electrical discharge machining, electroerosion, ecm, chemical
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a method and a device for removing the support structures of 3D-printed components from metallic materials.
  • DE 10 2015 119 746 A1 discloses a method for producing a supporting structure for supporting a three-dimensional object, which is produced by successive selective hardening of building material layers from a hardenable building material by means of an energy beam.
  • the support structure comprises support elements on which an attack structure is formed, at which an electrochemical material removal (electrochemical machining, ECM) can be initiated or initiated.
  • ECM electrochemical machining
  • a current flow is generated between the attack structure and a removal tool, are released by the ionic components of the attack structure, whereby material is removed from this.
  • US 2012/018115 A1 discloses a method for 3D printing by selective laser melting, in which separating layers are produced between the base and the component and the individual components produced. The separation layers are removed with a suitable acid or by local melting.
  • DE 10 2015 115 821 A1 discloses a method for treating a surface of a molded part produced in a 3D printing method with a surface treatment agent, wherein holding means are arranged on the molded part, which is a treatment of the surface in a treatment room, e.g. a vessel with an etchant, allow, without the surface touches walls of the treatment room.
  • Holding means such as spacers or retaining pins, prevent that the molded parts to be treated on the bottom or on the side wall of the vessel are present or that touch several moldings to be treated.
  • Holding means and molded part can be designed in one piece and / or produced in one piece in the 3D printing process. Between the surface of the molded part and the holding means, a predetermined breaking point can be formed, at which the holding means after solving the surface of the molding with the etchant of the molded part is solvable.
  • the present invention has the object to provide a method and an apparatus available by which the manufacturing time is optimized in the additive construction of metal parts, in particular by shortening the reworking time, and the process is simplified.
  • the object is achieved by a method having the features of patent claim 1 and a device having the features of patent claim 5. Refinements and developments of the invention will become apparent from the dependent claims.
  • the inventive method is based on a chemical removal of the support structure. By immersing the metallic component in a corrosive liquid, a chemical post-processing is possible in which the thin support structure is removed or dissolved. By chemical support structure removal, the reworking time can be significantly shortened, especially when using a system according to the invention, which allows the automated support structure removal.
  • the invention relates to a method for aftertreatment of a 3D printed object made of a metal material, which is the 3D printing of the object with a shell-like oversize compared to its target geometry and then removing or dissolving the envelope-likeêtelf by temporarily immersing the 3D printed object in a corrosive liquid.
  • the inventive method is characterized in that the 3D printed object with shell-like oversize production-related internal and / or external column-like and not belonging to the target geometry support structures comprises.
  • the cross section of the support structures is dimensioned so that they are also removed or dissolved upon removal or dissolution of the envelope-like allowance at least in the transition region to the target geometry.
  • the support structures are dimensioned in their cross-section such that they are completely removed or dissolved upon removal of the envelope-like oversize.
  • the objects or moldings to be processed are produced in a generative or additive manufacturing process (3D printing process).
  • 3D printing process One example is the layered construction of metal parts by selective laser melting of metal powders (SLM process).
  • SLM process selective laser melting of metal powders
  • the surface of the molded part produced on production-related unevenness, which favor adhesion of dirt or impurities on the surface of the molding.
  • powder-based 3D printing can also a powder surrounding the molding will adhere to the surface of the molding or be fused to the surface, also resulting in a rough surface.
  • the rough or porous surface of the molding also has a negative effect on the feel of the molding.
  • the object to be post-treated is printed with a shell-like oversize relative to its target geometry and the surface of the object produced in a 3D printing process is smoothed by removing or dissolving the shell-like oversize using an etchant.
  • An etching medium attacks the object to be treated from all sides. Therefore, it is necessary to provide the component with an allowance during the data preparation, so that the target geometry can be achieved even after the reworking.
  • the etchant to be used depends essentially on the material or materials with which the object was made. It has to be taken into account that a different etching medium may have to be used for each starting material in order to achieve an optimal result.
  • the metal material is the material 1.2709 and the corrosive liquid is an aqueous solution of iron (III) chloride.
  • the metal material is aluminum and the corrosive liquid is caustic soda.
  • the present invention also provides an apparatus with which the machining of the components can be carried out with a finite amount of effort and with which a reproducible and controllable process can be designed, which enables an automated reworking.
  • the invention provides a safe, simple and flexible operation of the operation ready.
  • An object of the invention is a device for the post-treatment of 3D printed objects made of a metal material.
  • the apparatus comprises a first process chamber with an etching basin, a second process chamber with a sink, and a transport device for inserting and executing a 3D printed object to be post-processed into the etching basin and then inserting and removing it into the sink.
  • the device according to the invention comprises two process chambers.
  • the first process chamber includes an etching basin. This is filled in one embodiment of the device according to the invention with a corrosive liquid.
  • the etching basin has a heater for heating a liquid therein to a desired temperature.
  • the etching basin has flow nozzles for circulating a liquid contained therein. Generating a flow in the basin enables a stable and homogeneous etching process. In one embodiment, so-called mixing nozzles are used. The defined alignment of the nozzles allows a uniform circulation of the liquid and thus an optimal etching result.
  • the second process chamber includes a sink. This serves to flush the component.
  • the sink is filled with demineralized water.
  • the sink has flow nozzles for circulating a liquid therein.
  • the device according to the invention comprises a protective housing around the process chambers.
  • the device according to the invention comprises a set-up station.
  • the setup station is set up for the post-treated component is placed there in a basket that is specially designed for use in the method according to the invention.
  • the transport device comprises a grid-like transport basket, which can be immersed in the pelvis together with the 3D-printed object to be post-treated therein.
  • the transport device is set up for automatic, timed transport of the 3D printed objects.
  • the three process steps of setting, etching and rinsing are interlinked with a crane, which moves the component fully automatically between the different method steps.
  • the device comprises a control panel on which process parameters can be adjusted, e.g. the etching time and the temperature:
  • the device according to the invention allows the machining of metal parts with sizes of up to 400x400x400mm and a maximum weight of up to 200 kg.
  • the device according to the invention and the method according to the invention enable the removal of the support structures with a considerable saving of working time.
  • the process can be operated unmanned after its setting and represents an automation step of the rework of 3D printing components.
  • the device according to the invention and the method according to the invention also open up new design possibilities for metallic workpieces produced by 3D-Duck, since support structures of undercuts and internal cavities can also be removed.
  • the invention is schematically illustrated by means of embodiments in the drawings and will be further described with reference to the drawings. It shows:
  • Figure 1 3D printed objects before and after processing
  • Figure 2 is a simplified perspective view of a
  • FIG. 1 shows various 3D printed objects 11, 12 before (left side) and 14, 15 after (right side) the implementation of the method according to the invention. Shown are cylindrical 3D printing objects 11, 14 (top) and cube-shaped 3D printing objects 12, 15 (bottom).
  • the mold parts 11, 12 are made of a metallic material and were obtained from metal powder by selective laser melting (SLM). For example, aluminum is used as the metallic material or the material 1.2709, a high-strength steel (X 3 NiCoMoTi 18-9-5). In the pictures on the left side, the support structures 13 are clearly visible.
  • SLM selective laser melting
  • the support structures 13 are removed, unevenness of the surface is reduced or eliminated and the envelope-shaped oversize of the workpieces is reduced.
  • a corrosive liquid for example, an aqueous solution of iron (III) chloride is used for machining steel moldings.
  • caustic soda is suitable as a caustic liquid.
  • the surface of the treated 3D printing objects 14, 15 may be further processed in a subsequent step, e.g. by sandblasting or grinding to obtain a desired surface finish or gauge.
  • FIG. 2 shows a simplified perspective illustration of an embodiment of a device 20 for post-processing 3D printing Objects made of metallic materials.
  • the system 20 comprises two process chambers 21, 22 and a set-up station 23.
  • the process chambers 21, 22 are surrounded by protective housings 27, 28.
  • the first process chamber 21 contains an etching tank 24, which is filled with a corrosive liquid.
  • the liquid is brought to process temperature with a liquor (not shown).
  • a flow must be generated in the basin 24.
  • liquid lines 25 are provided, which lead to mixing nozzles (not shown), which allow a circulation of the etching liquid and the setting of a directed liquid flow.
  • a defined alignment of the mixing nozzles allows a uniform circulation of the liquid and thus an optimal etching result.
  • the second process chamber 22 includes a sink 26. This is filled with deionized water and is used to flush the etched component.
  • the system 20 includes a set-up station 23, on which an employee can place the post-processed 3D printing component in a specially designed transport basket 29.
  • a transport crane (not shown), which is movable on the rail 30.
  • the transport crane moves the component fully automatically between the different work steps.
  • the employee can enter the process parameters on a control panel 31. There, e.g. the etching time and the temperature are adjusted.
  • the process can be operated unmanned after his appointment.
  • the system allows the removal of the support structure with a considerable saving of working time and an automation of the post-processing of 3D printing components.
  • metal parts of up to 400 x 400 x 400 mm size and a weight of up to 200 kg can be processed.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Robotics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Powder Metallurgy (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour retirer des structures de support de composants en matériaux métalliques fabriqués par impression 3D.
PCT/EP2019/051972 2018-02-28 2019-01-28 Retrait des structures de support de composants fabriqués par impression 3d Ceased WO2019166166A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018202948.2 2018-02-28
DE102018202948.2A DE102018202948A1 (de) 2018-02-28 2018-02-28 Entfernung der Stützstrukturen von durch 3D-Druck hergestellten Bauteilen

Publications (1)

Publication Number Publication Date
WO2019166166A1 true WO2019166166A1 (fr) 2019-09-06

Family

ID=65237052

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/051972 Ceased WO2019166166A1 (fr) 2018-02-28 2019-01-28 Retrait des structures de support de composants fabriqués par impression 3d

Country Status (2)

Country Link
DE (1) DE102018202948A1 (fr)
WO (1) WO2019166166A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111299575A (zh) * 2019-12-12 2020-06-19 首都航天机械有限公司 一种激光选区熔化成形大尺寸薄壁结构件的随形调节基板
EP4389323A1 (fr) 2022-12-20 2024-06-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procédé de post-traitement de structures fabriquées de manière additive au moyen d'ultrasons

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120018115A1 (en) 2010-01-26 2012-01-26 Hoevel Simone Process for producing a 3-dimensional component by selective laser melting (slm)
US20130075957A1 (en) * 2011-09-23 2013-03-28 Stratasys, Inc. Support Structure Removal System
US20150197862A1 (en) * 2014-01-13 2015-07-16 Incodema3D, LLC Additive metal deposition process
WO2017029276A1 (fr) * 2015-08-14 2017-02-23 Meggitt Aerospace Limited (Trading As Meggitt Control Systems Coventry) Procédés de fabrication additive à l'aide d'une élimination chimique de la structure support
DE102015115821A1 (de) 2015-09-18 2017-03-23 Dyemansion Gmbh Verfahren zum Herstellen und zur Oberflächenbehandlung eines Formteils
DE102015119746A1 (de) 2015-11-16 2017-05-18 Cl Schutzrechtsverwaltungs Gmbh Verfahren zur Herstellung einer Stützstruktur zur Stützung eines generativ auszubildenden dreidimensionalen Objekts
WO2018013178A1 (fr) * 2016-07-15 2018-01-18 Arizona Board Of Regents On Behalf Of Arizona State University Dissolution de supports métalliques dans des métaux et des céramiques imprimés en 3d à l'aide de la sensibilisation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016213917A1 (de) * 2016-07-28 2018-02-01 General Electric Technology Gmbh Verfahren zur Herstellung eines Bauteils und nach dem Verfahren hergestelltes Bauteil

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120018115A1 (en) 2010-01-26 2012-01-26 Hoevel Simone Process for producing a 3-dimensional component by selective laser melting (slm)
US20130075957A1 (en) * 2011-09-23 2013-03-28 Stratasys, Inc. Support Structure Removal System
US20150197862A1 (en) * 2014-01-13 2015-07-16 Incodema3D, LLC Additive metal deposition process
WO2017029276A1 (fr) * 2015-08-14 2017-02-23 Meggitt Aerospace Limited (Trading As Meggitt Control Systems Coventry) Procédés de fabrication additive à l'aide d'une élimination chimique de la structure support
DE102015115821A1 (de) 2015-09-18 2017-03-23 Dyemansion Gmbh Verfahren zum Herstellen und zur Oberflächenbehandlung eines Formteils
DE102015119746A1 (de) 2015-11-16 2017-05-18 Cl Schutzrechtsverwaltungs Gmbh Verfahren zur Herstellung einer Stützstruktur zur Stützung eines generativ auszubildenden dreidimensionalen Objekts
WO2018013178A1 (fr) * 2016-07-15 2018-01-18 Arizona Board Of Regents On Behalf Of Arizona State University Dissolution de supports métalliques dans des métaux et des céramiques imprimés en 3d à l'aide de la sensibilisation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111299575A (zh) * 2019-12-12 2020-06-19 首都航天机械有限公司 一种激光选区熔化成形大尺寸薄壁结构件的随形调节基板
CN111299575B (zh) * 2019-12-12 2022-03-18 首都航天机械有限公司 一种激光选区熔化成形大尺寸薄壁结构件的随形调节基板
EP4389323A1 (fr) 2022-12-20 2024-06-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procédé de post-traitement de structures fabriquées de manière additive au moyen d'ultrasons

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