EP3194097A1 - Procédé de liaison de pièces qui sont fabriquées à partir d'une matière première dans le processus de fabrication générative - Google Patents

Procédé de liaison de pièces qui sont fabriquées à partir d'une matière première dans le processus de fabrication générative

Info

Publication number
EP3194097A1
EP3194097A1 EP15816378.2A EP15816378A EP3194097A1 EP 3194097 A1 EP3194097 A1 EP 3194097A1 EP 15816378 A EP15816378 A EP 15816378A EP 3194097 A1 EP3194097 A1 EP 3194097A1
Authority
EP
European Patent Office
Prior art keywords
raw material
workpiece
individual parts
contact surfaces
production
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Withdrawn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
EP15816378.2A
Other languages
German (de)
English (en)
Inventor
Michael Ott
Steffen Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP3194097A1 publication Critical patent/EP3194097A1/fr
Withdrawn legal-status Critical Current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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • 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
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/64—Treatment of workpieces or articles after build-up by thermal 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
    • 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
    • B22F3/10—Sintering only
    • B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • 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
    • B22F3/14—Both compacting and sintering simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • B23K26/342—Build-up welding
    • 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
    • B33Y50/00—Data acquisition or data processing for 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
    • B33Y80/00—Products made by additive manufacturing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • 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
    • B22F10/30—Process control
    • B22F10/38—Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
    • 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
    • B22F3/10—Sintering only
    • B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • B22F2003/1051—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by electric discharge
    • 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
    • B22F2998/10—Processes characterised by the sequence of their steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/001—Turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/22—Manufacture essentially without removing material by sintering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/30—Manufacture with deposition of material
    • F05D2230/31—Layer deposition
    • 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 process for the generative manufacturing a part made of a raw material which tens comprises Wenig ⁇ a metal, wherein a mathematical model of the workpiece is created, and in each case in a production step, a unit amount of the raw material under local heat input to an already manufactured part locally melted on ⁇ and solidified there.
  • Generative manufacturing processes represent a novel approach for producing workpieces with a high geometric complexity, and have recently gained in importance.
  • An essential feature of generative manufacturing processes is that a raw material based on virtual data models of a workpiece in low-dimensional form (for example as wire or as foil) or informal (for example as powder or as liquid) by means of chemical and / or physical processes is gradually formed to the finished workpiece.
  • Eger ⁇ ben generative manufacturing processes on one hand the production of improved, conventionally impossible or very laborious prepared components, such as workpieces measured ⁇ tailored material properties, light weight or inner surfaces for better cooling. This thus allows an increase in efficiencies, respectively, a cost reduction for new parts.
  • generative manufacturing processes promise great simplifications in service and repair.
  • Geometries for workpieces to be produced can be realized, which can be realized by conventional manufacturing only with significantly increased production costs, such. Undercuts or cavities are also limited here.
  • in the simultaneous production of thick-walled and thin-walled structures in a workpiece may be due to occurring in the workpiece during the production process residual stresses. These residual stresses are due to the different thermodynamic conditions for the classification of the atoms in the respective local crystal structure, which on thick-walled or
  • thin-walled structures prevail: the local heat dissipation of the heat introduced for the addition of the particles takes place almost completely through the already manufactured part of a workpiece. A larger thermal gradient is thus possible at a thick-walled structure, whereby the heat is dissipated fast ⁇ ler than a thin-walled structure to which molten material remains longer in the liquid phase. This can also lead to deposition processes of the alloy used.
  • the thus "frozen" during solidification in the different structures voltages in a workpiece can thereby be greater than the yield strength of the workpiece, can thereby cracks occur.
  • the delay of the production can already currency ⁇ rend result in damage to the manufacturing plant.
  • the invention is therefore based on the object, a method for manufacturing a workpiece from a raw material suits ⁇ ben to produce that complex geometries it possible ⁇ laubt and thereby causes a lowest possible gen delay in the finished workpiece.
  • the above object is achieved by a method for the generative production of a workpiece from a raw material comprising at least one metal, wherein a geometric model of the workpiece created and the Mo ⁇ dell is divided into a plurality of individual parts, each item gradually from the Raw material is produced by each in a manufacturing step a Gamen ⁇ unit of the raw material with local heat input to an already manufactured part of each item is locally melted and solidified there, and wherein the individual ⁇ parts under the action of pressure and local heat on the Contact surfaces are joined together by a diffusion process and thereby the finished workpiece is joined.
  • the raw material is present given by a metal or a Le ⁇ government.
  • a unit of quantity of the raw material in particular comprises a powder or granule grain.
  • the local melting of the unit of quantity of the raw material under local heat input comprises in particular a complete melting, as well as a melting, in which the melting process remains reduced to the surface of the respective unit of quantity, ie in particular also a sintering process.
  • the contact surfaces are each joined at which the items under the action of pressure and under local to warmth, are predetermined by the geometric ⁇ specific model of the workpiece.
  • the invention is in a first step, assume that with increasing geometric complexity of the to be produced workpiece, a conventional production, in ⁇ play, of a forging or casting process, with closing at ⁇ post usually at a disproportionately high expenditure and thereby unacceptable costs leads.
  • the problems which occur in the generative production of a workpiece with complex geometry, in particular with respect to the material stresses should therefore be solved as far as possible in the context of a generative manufacturing process.
  • the individual production steps or the respective local heat input in the spatial sequence are optimized can be.
  • the invention proposes different individual ⁇ parts of the workpiece by means of the separately-described ⁇ NEN manufacturing steps to produce.
  • this procedure makes it possible to select the dimensioning of the individual parts in such a way that problems of the material structure of the workpiece, in particular tension, arising from the individual melting and solidification processes do not yet occur to any appreciable extent.
  • the division of the workpiece into different individual parts he ⁇ follows this by means of a geometric model, which in each case for the spatial division of the single manufacturing steps, each adding a unit of quantity of the raw material, is present anyway.
  • the off-closing assembly is carried out at a pressure which only causes a slight elastic deformation of the to be joined work ⁇ piece.
  • a plurality of individual parts is assembled under the action of unidirectionally acting pressure.
  • all items are assembled under the action of unidirectional pressure.
  • this can also be done in stages, so that initially ver ⁇ different groups of items are packed under pressure to unidirektio- nalem rough structures, and then the coarse structures once again under the action of unidirectional pressure, which is not acting along the joining axis of the coarse structures, are assembled to the finished workpiece.
  • Unidirectional printing is particularly easy to implement in the production process.
  • a plurality of individual parts is assembled by means of spark plasma sintering.
  • Spark plasma sintering is a process established in the industry, the application of which in the present method for joining the individual parts results in a particularly homogeneous structure of the finished workpiece.
  • layers ge ⁇ made of the raw material As a further advantage, it has proven when a plurality of individual parts in each case layers ge ⁇ made of the raw material.
  • stresses may occur in the material during the manufacturing ⁇ this process are in already manufactured part of the workpiece in Schich ⁇ power direction.
  • ⁇ ne manufacturing processes in a layered structure of the individual parts is particularly advantageous.
  • a one ⁇ parts right here may also include additional auxiliary structures, which, given the geometry of the single part, which should allow the layered structure of the raw material be ⁇ low or at all concerned ⁇ . These auxiliary structures are preferably to be removed before joining the individual parts to the finished workpiece.
  • a plurality of individual parts is preferably manufactured in parallel in a plant for layered production.
  • a parallel production is to be understood that a layer is added to an already manufactured part of an item, and before there another
  • Layer is added, at least one layer is added to an already manufactured part of another item.
  • the plant is often subjected to a preparation process after a single production step or a plurality of production steps.
  • This preparation process may consist, for example, in the correct placement of the raw material on the already manufactured part of a single part. If the raw material in powder form, the Vorbe ⁇ preparatory process includes providing a layer of powder wel ⁇ surface completely covers the already manufactured part of a workpiece and to have a very smooth surface has, for which the powder is still pulled apart separately.
  • each individual layer is added to raw material in a multiplicity of production steps with a respective local heat input for melting the relevant unit of quantity.
  • the sum of all local heat inputs required for adding a layer forms a maximum of simple coverage of the already manufactured part of the workpiece. If a workpiece is now manufactured in one piece in layers, the next local heat input takes place at a specific point on the surface of the already manufactured part much earlier than if corresponding parallel layers of other individual parts had previously been to be produced.
  • the items thus retain during the layered Ferti ⁇ supply better heat dissipation than that of a single piece manufactured workpiece, which can have an advantageous effect on the solidification process, depending on the raw material. Among other things, in a faster solidification, the unwanted deposition of individual material phases of the raw material can be better prevented.
  • the raw material is provided in powder form.
  • the local heat input is concentrated substantially point-like, so that the improved heat dissipation can have a particularly advantageous effect.
  • the raw material is melted locally by means of selective laser melting. Selective laser melting is a particularly widespread process in order to provide the local heat input for a generative production process with a powdery raw material.
  • the invention further specifies a workpiece which is made of a raw material by means of the above-described method.
  • a workpiece which is made of a raw material by means of the above-described method.
  • the workpiece is designed as a component of an internal combustion engine.
  • FIG. 1 shows a diagram of the sequence of a method for the generative production of a workpiece from a raw material
  • FIG. 3 shows an oblique view of the assembly of individual parts to a finished workpiece according to FIG. 1
  • FIG. 1 the sequence of a method 1 for producing a workpiece 2 is shown in a schematic diagram.
  • the workpiece 2 is designed as a turbine blade 4 of a gas turbine, not shown.
  • the turbine blade 4 in this case has two platforms 6a, 6b and a profiled wing.
  • 8 In a first method step, a geometric model 10 of the workpiece 2 will now he provides ⁇ .
  • This geometric model 10 is now first in Parts 12a-12f divided, the circumstances in the system provided for the production of the items 12a-12f system for an advantageous distribution are to be considered.
  • the individual parts 12a-12f are then manufactured in layers in a plant, not shown, from a raw material 14.
  • the raw material 14 which is designed here as a powdery Me ⁇ tallleg réelle, locally melted in a plurality of individual production steps by means of selective laser melting 16 so that a melted in a manufacturing step by the local heat input of the laser Pul ⁇ is confusing to an already fabricated part 13b, 13c of an item 12b, 12c solidifies, and thereby gradually the next layer is formed.
  • the geometric model 10 of the workpiece 2 can be used. Depending on their geometry, certain groups of individual parts 12b, 12c are manufactured in parallel. Details of this production will be explained with reference to FIG 2.
  • FIG. 2 schematically shows, in an oblique view, a system 26 for selective laser melting.
  • a Pul ⁇ verbett 28 already manufactured parts are 13b-13e of the individual parts 12b-12e, each having a similar geometry exhibit.
  • a laser 30 scans the powder bed 28 according to the geometry of the individual parts 12b-12e, each individual laser pulse corresponding to a production step 32 in which a unit of quantity 34 of powder grains is melted.
  • the thus-molten raw material 14 solidifies on the already produced ge ⁇ part 13b of the item 12b, and by a plurality ⁇ number of such production steps 32 a next layer is applied to the already made part 13b of the A ⁇ zelteils 12b 36b.
  • FIG. 3 the assembly of individual parts 12a-12f into the finished turbine blade 4 is schematically illustrated in an oblique view.
  • this single ⁇ parts 12b-12e which constitute a disk-like dividing an internal structure of the wing 6 in the geometrical model of the turbine blade 4, and here not shown in detail platforms 8a, 8b are joined together by a first spark plasma sintering process, in which the pressure 20a acts perpendicular to the contact surfaces 24a-24d provided on the individual parts.
  • a second step by egg NEN second Spark plasma sintering process, the outer through the A ⁇ individual parts 12b-12e formed inside structure rempligelflä ⁇ surfaces 12a, added 12f, the used for this purpose pressure 20b respect.
  • the geometric model 10 defi ⁇ n Being arrangement of the items acts perpendicular to the pressure 20a, which was used in the first spark plasma sintering process ver ⁇ .

Landscapes

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

Abstract

L'invention concerne un procédé (1) de fabrication générative d'une pièce (2) à partir d'une matière première (14) qui contient au moins un métal. Dans le procédé, on crée un modèle géométrique (10) de la pièce (2) et le modèle (10) est divisé en une pluralité d'éléments individuels (12a-12f). Chaque élément individuel (12a à 12f) est fabriqué par étapes à partir de la matière première (14) par fusion locale puis solidification, dans une étape de fabrication (32), d'une unité de quantité (34) de matière première (14) avec apport de chaleur local sur une partie déjà fabriquée (13b-13e) de l'élément individuel (12a-12f) respectif et les éléments individuels (12a-12f) sont assemblés au moyen d'un procédé de diffusion par application de pression (20a, b) et apport local de chaleur sur des surfaces de contact (24a-d) de façon à obtenir la pièce finie (2). L'invention concerne en outre une pièce (2) fabriqué à partir d'une matière première (14) au moyen d'un tel procédé (1).
EP15816378.2A 2014-12-18 2015-12-02 Procédé de liaison de pièces qui sont fabriquées à partir d'une matière première dans le processus de fabrication générative Withdrawn EP3194097A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014226370.0A DE102014226370A1 (de) 2014-12-18 2014-12-18 Verfahren zur generativen Fertigung eines Werkstücksaus einem Rohmaterial
PCT/EP2015/078295 WO2016096417A1 (fr) 2014-12-18 2015-12-02 Procédé de liaison de pièces qui sont fabriquées à partir d'une matière première dans le processus de fabrication générative

Publications (1)

Publication Number Publication Date
EP3194097A1 true EP3194097A1 (fr) 2017-07-26

Family

ID=55024065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15816378.2A Withdrawn EP3194097A1 (fr) 2014-12-18 2015-12-02 Procédé de liaison de pièces qui sont fabriquées à partir d'une matière première dans le processus de fabrication générative

Country Status (5)

Country Link
US (1) US20170333995A1 (fr)
EP (1) EP3194097A1 (fr)
CN (1) CN107107192A (fr)
DE (1) DE102014226370A1 (fr)
WO (1) WO2016096417A1 (fr)

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DE102016206547A1 (de) * 2016-04-19 2017-10-19 Siemens Aktiengesellschaft Verfahren zur modularen additiven Herstellung eines Bauteils und Bauteil
EP3281725A1 (fr) * 2016-08-09 2018-02-14 Siemens Aktiengesellschaft Procédé de fabrication additive et support lisible par ordinateur
US20180111191A1 (en) * 2016-10-21 2018-04-26 Hamilton Sundstrand Corporation Method of manufacturing metal articles
DE102017208497A1 (de) * 2017-05-19 2018-11-22 Homag Bohrsysteme Gmbh Verfahren zum Vorbereiten eines Drucks eines dreidimensionalen Bauteils sowie System
DE102017219333A1 (de) * 2017-10-27 2019-05-02 Siemens Aktiengesellschaft Verfahren zur Modifikation von Bauteilen unter Einsatz additiver Fertigung
US11426818B2 (en) 2018-08-10 2022-08-30 The Research Foundation for the State University Additive manufacturing processes and additively manufactured products
US11318553B2 (en) * 2019-01-04 2022-05-03 Raytheon Technologies Corporation Additive manufacturing of laminated superalloys
DE102020216193A1 (de) 2020-12-17 2022-08-11 Rolls-Royce Deutschland Ltd & Co Kg Schaufelbauteil, Verfahren zu dessen Herstellung und Gasturbine
US11952918B2 (en) 2022-07-20 2024-04-09 Ge Infrastructure Technology Llc Cooling circuit for a stator vane braze joint

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CN107107192A (zh) 2017-08-29
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