EP3377261A1 - Procédé de fabrication d'une structure de support pour supporter un objet tridimensionnel à fabriquer par fabrication additive - Google Patents

Procédé de fabrication d'une structure de support pour supporter un objet tridimensionnel à fabriquer par fabrication additive

Info

Publication number
EP3377261A1
EP3377261A1 EP16801156.7A EP16801156A EP3377261A1 EP 3377261 A1 EP3377261 A1 EP 3377261A1 EP 16801156 A EP16801156 A EP 16801156A EP 3377261 A1 EP3377261 A1 EP 3377261A1
Authority
EP
European Patent Office
Prior art keywords
support structure
support
removal
electrochemical
building material
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.)
Withdrawn
Application number
EP16801156.7A
Other languages
German (de)
English (en)
Inventor
Frank Herzog
Florian Bechmann
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.)
CL Schutzrechtsverwaltung GmbH
Original Assignee
CL Schutzrechtsverwaltung GmbH
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 CL Schutzrechtsverwaltung GmbH filed Critical CL Schutzrechtsverwaltung GmbH
Publication of EP3377261A1 publication Critical patent/EP3377261A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/001—Disintegrating
    • 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
    • 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
    • B22F10/62—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
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
    • 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
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • 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
    • 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
    • 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
    • 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 for producing a support structure comprising at least one support element for at least partially supporting a three-dimensional object to be generatively formed on the support structure by successive selective solidification of building material layers of a hardenable building material by means of an energy beam.
  • support structures - sometimes also referred to as support structures - for the support of three-dimensional objects to be generatively formed on these in the context of the generative training of respective three-dimensional objects is known.
  • Corresponding support structures do not constitute components of the three-dimensional objects to be generatively formed and are removed after completion of the generatively formed three-dimensional objects.
  • the invention has for its object to provide a contrast, in particular with regard to a simple, possibly automatable removal of a manufactured support structure, improved method for producing a corresponding support structure.
  • the object is achieved by a method according to claim 1.
  • the dependent claims relate to particular embodiments of the method.
  • the object is further achieved by a support structure according to claim 7.
  • the method (initially) described here generally serves to produce a support structure (support structure) for supporting it at least in sections, ie for supporting at least one subregion, of a three-dimensional object to be generated generatively on the support structure.
  • the support structure comprises at least one, typically a plurality of support element (s).
  • the support structure or corresponding support elements can basically have any desired geometric shape. Individual, multiple or all support elements may be similar, similar or different in their respective geometric shape.
  • corresponding support elements may have an elongated, ie, for example, rod-shaped or rod-shaped form or a planar one, ie, for example. platy, have shape.
  • the geometric shape of the support structure or of the support elements is selected at least in sections with respect to the geometrical-structural configuration of the object sections of the three-dimensional object to be generatively formed on the support structure (hereinafter referred to as "object" for short).
  • the support structure to be produced according to the method can, however, also be used in principle via non-generative production processes, such as, for example, B. casting processes.
  • the support structure to be produced in accordance with the method is therefore preferably designed to be generative-analogously to the object to be supported at least in sections by the support structure-by successive selective hardening of building material layers of a hardenable building material by means of an energy beam.
  • Corresponding Bau Scheme generally describe the geometric or geometrical-constructive shape of the respective generatively produced support structure or of this at least partially supported by or at least partially on the support structure generative trainee object.
  • Corresponding baud data can be, for example, CAD data of the support structure to be produced or of the object to be supported by it, at least in sections, or contain such CAD data.
  • the generative production of the support structure takes place by means of a device for the generative production of at least one three-dimensional object by successive selective solidification of individual building material layers of a solidifiable building material by means of at least one energy beam generated by at least one radiation generating device.
  • the device comprises the typically required functional components for carrying out generative building processes, ie in particular a radiation generating device for generating an energy beam, in particular a laser or electron beam, for selective solidification of individual building material layers of a building material, in particular a metal, plastic or ceramic powder, and a coater for training to be consolidated building material layers in a building level.
  • a construction level may be a surface of a support element of a support device, which is typically movably mounted (in the vertical direction), or an already solidified construction material layer.
  • an attack structure on which an electrochemical or electrical material removal from the support structure can be initiated or initiated is formed according to the method on at least one support element.
  • An electrochemical or electrical removal of material from the support structure can take place in the context of carrying out at least one measure for an electrochemical or electrical material removal from the support structure.
  • the implementation of at least one measure for an electrochemical or electrical removal of material from the support structure can take place in the context of a method for removing a support structure produced according to the method from a generatively formed or produced object.
  • Electrochemical material removal (English, electrochemical machining, ECM for short) and thus a measure for an electrochemical material removal is based on the principle of the element to be ablated or removed, in the present case the support structure or corresponding support elements of the support structure, by means of an electrical voltage source apply electrical voltage.
  • the ablated element can in particular be used as a first electrode, for. B. as an anode, and a removal tool as a counter electrode, for. B. as a cathode.
  • the ablated element and the Abtragwerkmaschine be in an electrically conductive electrolyte, eg. As a saline solution stored. Betweenstructuretragendem element and Abtragwerkmaschinemaschine is typically a gap, z. From 0.01 to 1 mm.
  • the ablated element has a certain electrical conductivity.
  • the element to be removed is therefore typically formed from a metallic building material.
  • the support structure is suitably made of a metallic building material, i. H. z. B. based on aluminum or an aluminum alloy or iron or an iron alloy, in particular steel.
  • an electrochemical or electrical material removal (preferably) initiated on the support elements of the support structure, and therefore an electrochemical or electrical material removal preferably takes place on the support structure, whereby this comparatively simple, automatable A type which is generatively designed on the support structure is not or hardly affected by its typically closed and / or comparatively small surface.
  • the support structure is preferably made generative by successive selective solidification of building material layers from or a solidifiable building material by means of an energy beam.
  • a particularly efficient embodiment provides that corresponding attack structures are formed generatively simultaneously with the generative design of the support structure.
  • the generative training of appropriate attack structures also opens up a maximum of geometric freedom of the attack structures.
  • attack structures are basically any geometric design elements in question, in which an electrochemical or electrical material removal in the context of carrying out a corresponding measure to an electrochemical or electrical material removal (preferred) can be initiated.
  • Attack structures can generally be formed by a targeted weakening or reinforcement of the cross-section of respective support elements, since corresponding "irregularities" of the surface of the support elements, a concentration of the respective electric field occurs, which causes an initiation of an electrochemical or electrical attack and an electrochemical or
  • the support elements ensure their original support function, but also have a geometric shape, which offers the greatest possible attack surface for an electrochemical or electrical attack.
  • openings, recesses, elevations, projections (points) or openings, depressions, elevations, projections (tips) delimiting areas, in particular edges, on or in corresponding support elements can be formed as engagement structures.
  • An attack structure and a certain roughness of the support elements can be formed.
  • An attack structure can be characterized by a certain regular or irregular three-dimensional surface structuring of a Support element are formed.
  • a plurality of geometrically different attack structures can be formed on a support element.
  • a, in particular open-pored, cellular structure is formed as an attack structure.
  • a supporting structure or a supporting element can therefore be produced at least in sections with a, in particular open-pore, cellular structure (foam structure), which can be produced by a fluid working medium, i. H. z. B. an electrolyte or a dielectric, wettable or flowed through.
  • the support elements or respective attack structures are present here in particular by the wall elements forming the cellular structure.
  • the invention further relates to a support structure produced according to the above-described method for at least partially supporting a generatively formed on this three-dimensional object. All embodiments in connection with the method for producing the support structure apply analogously to the support structure.
  • the invention relates to a method for the generative production of at least one three-dimensional object by successive selective solidification of building material layers of a solidifiable building material by means of an energy beam.
  • the method is characterized in that in a first step, a generative formation of at least one support element comprehensive support structure for at least partially supporting a generatively formed on this three-dimensional object, in particular according to the method described above, wherein the support structure by successive selective solidification of building material layers is formed generatively from a solidifiable building material by means of an energy beam, wherein on at least one support element an attack structure, at which an electrochemical material removal is initiated or initiated, is formed.
  • a generative forming of the object to be produced takes place, wherein at least a partial area of the object is formed on the support structure.
  • the support structure and the object are expediently formed or produced at least in sections, in particular completely, from the same, in particular metallic, solidifiable building material.
  • the at least partially, in particular complete, training of the support structure and the object of the same building material facilitates the generative construction process or related pre- or post-processing processes, such as the supply of the building material to be solidified in a construction or process chamber or the discharge or reprocessing or Use of non-solidified building material from a construction or process chamber, considerably.
  • Corresponding metallic building materials are, as mentioned, for. As aluminum or aluminum alloys or iron or iron alloys, especially steel.
  • the support structure can be formed, at least in sections, between a first object section and at least one further object section.
  • the at least two object sections can, for. B. with respect to any spatial axis adjacent to each other, d. H. z. B. be arranged one above the other with respect to a vertical axis.
  • the first object section may be provided with at least one first positive locking element, for. B. a projection, and a further object portion with at least one corresponding to the first positive-locking element form-fitting element (Gegenform gleichelement), z. B. a recess, are formed, wherein the support structure between the first and the further object portion can be formed, so that the respective form-fitting elements interact after removal of the support structure to form a positive connection with each other, d. H. z. B. interlock.
  • a corresponding positive connection can allow a certain mobility of respective object sections relative to each other.
  • the invention further relates to a three-dimensional object produced in accordance with the above-described method for producing a three-dimensional object. All embodiments in connection with the above-described method for producing a three-dimensional object apply analogously to the three-dimensional object.
  • the invention relates to a method for removing a support structure produced according to the method for producing a support structure from a three-dimensional object produced according to the method for producing a three-dimensional object.
  • the method is characterized in that at least one measure for an electrochemical or electrical removal of material from the support structure is carried out, wherein an electrochemical or electrical removal of material (preferably) can be initiated or initiated on at least one attack structure.
  • the measure for an electrochemical material application can be in particular a, in particular automatable or automated, electrochemical removal process.
  • the currents used for this purpose (per area) can be z. B. in a range between 0.1 and 5 A / mm 2 .
  • the measure for an electrical material removal may be, in particular, an electrical removal process, in particular a spark erosion process, in particular automatable or automated.
  • the currents used for this purpose (per area) can also z. B. in a range between 0.1 and 5 A mm 2 .
  • the support structure may either be completely removed or only partially removed by the electrochemical or electrical ablation step. In the latter case, after the partial removal, which is to be understood as a weakening of the support structure, remaining part of the support structure by a separate, z.
  • material removal can be removed. Such can, for. B. by a time and / or in their, z. B. on the selected in each action electrical voltage controllable, Abtragsintenstician reduced implementation of the measure for the electrochemical or electrical material removal, which requires only a partial removal of the support structure, prevents the measure also causes a Materialabtag of the object.
  • FIG. 1 - 3 each a schematic diagram of an apparatus for carrying out a method for producing a support structure according to an embodiment
  • FIGS. 2, 3 shows a schematic representation of a device 1 for carrying out a method for producing a support structure 2 for at least partially supporting, d. H. for supporting at least one subregion, a three-dimensional object 3 to be generatively formed on the support structure 2 (cf., FIGS. 2, 3).
  • the device 1 is used both for the generative production of the support structure 2 by selectively solidifying building material layers of a hardenable building material 4 by means of an energy beam 6 generated by a Strahlungser Wegungseinnchtung 5 and the generative production of an at least partially supported by the support structure 2 object 3, ie typically one technical component or a technical component group, by selective solidification of building material layers of the or a hardenable building material 4 by means of an energy beam 6 generated by the radiation generating device 5.
  • Bau Schemes generally describe the geometric or geometrical-constructive shape of generatively trainees support structure 2 and at least partially on the support structure 2 generatively trainees object 3.
  • CAD data of the support structure to be produced 2 and the object 3 or be include such CAD data.
  • a building level can be an already solidified building material layer or the surface or side of a support element 9 of a support device 10, which is typically movably mounted (in the vertical direction).
  • a building chamber 8 of the device 1 typically there is a protective gas atmosphere, d. H. z. As an argon or nitrogen atmosphere.
  • the energy beam 6 generated by the radiation generator 5 is electromagnetic radiation, i. H. a laser beam, in short a laser.
  • the radiation generating device 5 is therefore a laser generating device for generating a laser beam.
  • the device 1 can therefore be a selective laser sintering device, in short SLS device, for carrying out selective laser sintering processes for the generative production of three-dimensional objects or a selective laser melting device, in short SLM device, for carrying out selective laser melting processes for the generative production of three-dimensional objects.
  • the solidifiable building material 3 is a metal powder which can be hardened by means of the energy beam 6, i. H. z.
  • a metal powder which can be hardened by means of the energy beam 6, i. H. z.
  • an aluminum powder or a steel powder for example, an aluminum powder or a steel powder.
  • the support structure 2 which can be produced or produced by means of the device 1 comprises a plurality of support elements 11 of a specific geometric shape. Individual, multiple or all support elements 1 1 may be similar in their respective geometric shape, resemble or differ. In the exemplary embodiments shown in FIGS. 1 to 4, the support elements 11 have an elongate, ie rod-shaped or rod-shaped, geometric shape. In the embodiment shown in Fig. 5, the support elements 1 1 a flat, ie platelet-shaped, shape.
  • the geometric shape of the support structure 2 or the support elements 1 1 is selected with regard to the geometrical-structural configuration of the object sections of the object 3 to be generatively formed on the support structure 2 (see FIG. 2).
  • the support structure 2 forms a part of the outer contour of the object 3.
  • an attack structure 12 on which an electrochemical or electrical removal of material from the support structure 2 can be initiated or initiated is formed on individual, several or all support elements 11.
  • An electrochemical or electrical removal of material from the support structure 2 takes place in the context of carrying out at least one measure for an electrochemical or electrical removal of material from the support structure 2.
  • the implementation of at least one measure for an electrochemical or electrical removal of material from the support structure 2 can in the context of a method for Removal of a support structure 2 made of an object 3.
  • An electrochemical removal of material and thus a measure for an electrochemical removal of material is based on the principle of applying or removing electrical support to the support structure 1 to be removed or removed supporting structure 1 1 of the support structure 2 by means of an electrical voltage source.
  • the support structure 2 can in particular as the first electrode, for. B. as an anode, and a removal tool as a counter electrode, for. B. as a cathode.
  • the support structure 2 and the removal tool are in an electrically conductive electrolyte, for. As a saline solution stored. Between the support structure 2 and the removal tool is a gap, for. From 0.01 to 1 mm.
  • the support structure 2 is formed of a metallic building material.
  • attack structures 12 Due to the formation of corresponding attack structures 12 on the support elements 11, which attack structures 12 are typically formed on an exposed outside of respective support elements 1 1, an electrochemical or electrical material removal ("electrochemical or electrical attack”) on the support elements 1 1 of the support structure Accordingly, an electrochemical or electrical removal of material preferably takes place on the support structure 2, as a result of which it can be removed in a comparatively simple, automatable manner, which is also suitable for mass production typically closed and / or comparatively small surface not or hardly affected.
  • Corresponding attack structures 12 are typically designed to be generative simultaneously with the support structure 2. The generative formation of corresponding attack structures 12 opens up a maximum of geometric freedom of the attack structures 12.
  • attack structures 12 are any geometric design elements in question, in which an electrochemical or electrical material removal in the context of carrying out a corresponding measure to an electrochemical or electrical material removal (preferred) can be initiated.
  • attack structures 12 can be formed by targeted weakenings or reinforcements, in particular the cross section, of respective support elements 1 1, since at corresponding "irregularities" of the surface of the support elements 1 1, a concentration of the respective electric field occurs
  • the support elements 1 1 ensure their original support function, but additionally have a geometric shape which offers the greatest possible attack surface for an electrochemical or electrical attack ,
  • openings, depressions, elevations, projections (points) or openings, depressions, elevations, projections (tips) delimiting areas, in particular edges, are formed on or in the support elements 11 as corresponding engagement structures 12 can be.
  • An attack structure 12 can therefore be formed by a specific regular or irregular three-dimensional surface structuring of a support element 1 1.
  • a support structure 2 or support elements 1 1 having a, in particular open-pored, cellular structure (foam structure) which is covered by a fluid working medium, ie. H. z. B. an electrolyte or a dielectric, wettable or flowed through.
  • the support elements 11 or respective engagement structures 12 would be present here in particular by the wall elements forming the cellular structure.
  • the generative formation of an object 3 on a support structure 2 is shown.
  • the method shown in FIG. 2 illustrates a method for the generative production of an object 3 by successive selective solidification of building material layers of a hardenable building material 4 by means of an energy beam 6.
  • the method is characterized in that in a first step, a generative forming of at least one support element 1 1 comprehensive support structure 2 for at least partially supporting the on this generative trainees object 3, wherein the support structure 2 by successive selective solidification of building material layers of a solidifiable building material 4 is generatively formed by means of an energy beam 6, wherein on at least one support element 1 1 an attack structure 12, at which an electrochemical material removal is initiated or initiated, is formed.
  • a generative forming of the object 3 to be produced takes place, wherein at least a partial area of the object 3 is formed on the support structure 2.
  • the support structure 2 and the object 3 are expediently formed or manufactured completely from the same solidifiable building material 4.
  • a complete design of the support structure 2 and of the object 3 made of the same building material 4 facilitates the generative construction process or related upstream or downstream processes, such as the supply of the building material 4 to be solidified in a building chamber 8 and the discharge or reprocessing or -Use non-solidified building material 4 from the building chamber 8, considerably.
  • an object 3 to be produced can comprise a plurality of separate object sections 3a, 3b.
  • the support structure 2 can be formed at least in sections between a first object section 3a and a further object section 3b.
  • the object sections 3a, 3b are arranged adjacent to one another or one above the other with respect to a spatial axis, in this case a vertical axis.
  • the lower first object section 3a in FIG. 3 is in the form of a positive locking element 13 a protrusion which is undercut in the exemplary embodiment
  • the upper, further object section 3b in the FIGURE is formed with a form-locking element 14 (counter-form-locking element) which corresponds to the form-locking element 13 in the form of a recess which is undercut in the exemplary embodiment.
  • the support structure 2 is formed between the first object section 3a and the further object section 3b, so that the respective form-fit elements 13, 14 interact after removal of the support structure 2 to form a positive connection with each other, ie interlock.
  • the form-fitting connection formed in this way can allow a certain mobility of respective object sections 3a, 3b relative to each other.
  • a method for removing a support structure 2 from an object 3 is implemented to remove the support structure 2.
  • the method is characterized in that at least one measure for an electrochemical or electrical removal of material is carried out by the support structure 2, wherein an electrochemical or electrical material removal (preferably) can be initiated or initiated at least one attack structure 12.
  • the measure for an electrochemical material application can be in particular a, in particular automatable or automated, electrochemical removal process.
  • the currents used for this purpose (per area) can be z. B. in a range between 0.1 and 5 A / mm 2 .
  • the measure for an electrical material removal may be, in particular, an electrical removal process, in particular a spark erosion process, in particular automatable or automated.
  • the currents used for this purpose (per area) can also z. B. in a range between 0.1 and 5 A mm 2 .
  • the support structure 2 can either be completely removed by the measure for an electrochemical or electrical material removal or only partially removed. In the latter case, after the partial removal, which is to be understood as a weakening of the support structure 2, remaining part of the support structure 2 by a separate, z. As mechanical and / or radiation-based, material removal can be removed. Such can, for. B. by a time and / or in their, z. B. on the mentioned electrical voltage controllable, Abtragsintenstician reduced implementation of the measure for the electrochemical or electrical removal of material, which requires only a partial removal of the support structure 2, prevents the measure also causes a Materialabtag of the object 3.

Abstract

L'invention concerne un procédé de fabrication d'une structure de support (2) comprenant au moins un élément de support (11 ) pour soutenir au moins par endroits un objet tridimensionnel (3) à fabriquer par fabrication additive, par solidification sélective et successive, sur la structure de support (2), à l'aide d'un faisceau d'énergie (6), de couches de matériau de construction constituées d'un matériau de construction solidifiable (4), au moins une structure de mise en prise (12) étant formée sur au moins un élément de support (11), un processus d'enlèvement de matière électrochimique pouvant être amorcé ou amorçable sur ladite structure de mise en prise (12).
EP16801156.7A 2015-11-16 2016-11-10 Procédé de fabrication d'une structure de support pour supporter un objet tridimensionnel à fabriquer par fabrication additive Withdrawn EP3377261A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015119746.4A DE102015119746A1 (de) 2015-11-16 2015-11-16 Verfahren zur Herstellung einer Stützstruktur zur Stützung eines generativ auszubildenden dreidimensionalen Objekts
PCT/EP2016/077229 WO2017084956A1 (fr) 2015-11-16 2016-11-10 Procédé de fabrication d'une structure de support pour supporter un objet tridimensionnel à fabriquer par fabrication additive

Publications (1)

Publication Number Publication Date
EP3377261A1 true EP3377261A1 (fr) 2018-09-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16801156.7A Withdrawn EP3377261A1 (fr) 2015-11-16 2016-11-10 Procédé de fabrication d'une structure de support pour supporter un objet tridimensionnel à fabriquer par fabrication additive

Country Status (6)

Country Link
US (1) US20180311734A1 (fr)
EP (1) EP3377261A1 (fr)
JP (2) JP2018523008A (fr)
CN (1) CN107405709B (fr)
DE (1) DE102015119746A1 (fr)
WO (1) WO2017084956A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10376958B2 (en) * 2016-09-15 2019-08-13 General Electric Company Removable support for additive manufacture
DE102017208520A1 (de) * 2017-05-19 2018-11-22 Premium Aerotec Gmbh Verfahren zur Herstellung eines Objekts mittels generativer Fertigung, Bauteil, insbesondere für ein Luft- oder Raumfahrzeug, und computerlesbares Medium
DE102017210909A1 (de) * 2017-06-28 2019-01-03 Siemens Aktiengesellschaft Verfahren zur additiven Herstellung eines Bauteils mittels Hilfsstruktur
US20190015923A1 (en) * 2017-07-11 2019-01-17 United Technologies Corporation Additively manufactured article including electrically removable supports
JPWO2019021389A1 (ja) * 2017-07-26 2020-05-28 ヤマハ発動機株式会社 金属部材の製造方法
DE102017117666A1 (de) * 2017-08-03 2019-02-07 Extrude Hone Gmbh Verfahren zum Herstellen eines metallischen Bauteils
DE102017221484A1 (de) * 2017-11-30 2019-06-06 MTU Aero Engines AG Schichtbauverfahren und Schichtbauvorrichtung zum additiven Herstellen zumindest eines Bauteilbereichs eines Bauteils mit Hilfe einer Stützstruktur
DE102017221492A1 (de) * 2017-11-30 2019-06-06 MTU Aero Engines AG Verfahren zum abtrennen eines bauteils von einem substratkörper
EP3511164A1 (fr) * 2018-01-16 2019-07-17 Siemens Aktiengesellschaft Structure de support pour impression tridimensionnelle
DE102018202948A1 (de) * 2018-02-28 2019-08-29 Audi Ag Entfernung der Stützstrukturen von durch 3D-Druck hergestellten Bauteilen
CN108585799B (zh) * 2018-05-11 2021-05-11 广东工业大学 一种新型陶瓷3d打印成型方法
DE102018122567A1 (de) * 2018-09-14 2020-03-19 Bundesrepublik Deutschland, Vertreten Durch Den Bundesminister Für Wirtschaft Und Energie, Dieser Vertreten Durch Den Präsidenten Der Bundesanstalt Für Materialforschung Und -Prüfung (Bam) Verfahren zum Ablösen metallischer Stützstrukturen in der additiven Fertigung
US10967580B2 (en) * 2018-09-18 2021-04-06 General Electric Company Support structures for additively-manufactured components and methods of securing a component to a build platform during additive manufacturing
DE102018127311A1 (de) * 2018-10-31 2020-04-30 Eos Gmbh Electro Optical Systems Thermoelektrische Entfernung von Stützstrukturen
WO2020096662A1 (fr) * 2018-11-09 2020-05-14 Arconic Inc. Systèmes et procédés de finition de pièces obtenues par fabrication additive
DE102018129024A1 (de) * 2018-11-19 2020-05-20 AMCM GmbH Verfahren zur additiven Fertigung und System
EP3705209A1 (fr) * 2019-03-05 2020-09-09 Siemens Aktiengesellschaft Composant et procédé de fabrication d'un tel composant
DE102019207864A1 (de) * 2019-05-28 2020-12-03 Trumpf Laser- Und Systemtechnik Gmbh Verfahren zum additiven Herstellen von Bauteilen
DE102020201621A1 (de) 2020-02-10 2021-08-12 Siemens Aktiengesellschaft Strategie zum Trennen von Bauteilen in der additiven Herstellung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7172724B2 (en) * 2002-03-26 2007-02-06 Matsushita Electric Works, Ltd. Method of making sintered object
CN100377816C (zh) * 2003-02-25 2008-04-02 松下电工株式会社 三维形状造型物的制造方法及制造装置
CN101612793A (zh) * 2009-07-28 2009-12-30 李蕙如 制造三维工件的方法与设备
US20110256416A1 (en) * 2010-04-14 2011-10-20 Materials Solutions Method of forming an article using a powder layer manufacturing process
BE1020619A3 (nl) * 2011-02-04 2014-02-04 Layerwise N V Werkwijze voor het laagsgewijs vervaardigen van dunwandige structuren.
DE102011005929A1 (de) * 2011-03-23 2012-09-27 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung und Verfahren zum Herstellen eines Bauteils in Schichtbauweise
WO2012131481A1 (fr) * 2011-03-29 2012-10-04 Inspire Ag, Irpd Structure de pièces construite par la fabrication additive à base de poudre métallique
DE102011101857A1 (de) * 2011-05-18 2012-11-22 Man Truck & Bus Ag Verfahren zur Herstellung metallischer Bauteile
US8691333B2 (en) * 2011-06-28 2014-04-08 Honeywell International Inc. Methods for manufacturing engine components with structural bridge devices
DE102012000466B3 (de) * 2012-01-13 2013-04-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung von Bauteilen mit filigranen Strukturen und dessen Verwendung

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CN107405709A (zh) 2017-11-28
WO2017084956A1 (fr) 2017-05-26
DE102015119746A1 (de) 2017-05-18
JP2019177698A (ja) 2019-10-17
JP2018523008A (ja) 2018-08-16
CN107405709B (zh) 2020-09-25
US20180311734A1 (en) 2018-11-01

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