WO2019221748A1 - Systèmes et procédés de fabrication additive - Google Patents

Systèmes et procédés de fabrication additive Download PDF

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Publication number
WO2019221748A1
WO2019221748A1 PCT/US2018/033442 US2018033442W WO2019221748A1 WO 2019221748 A1 WO2019221748 A1 WO 2019221748A1 US 2018033442 W US2018033442 W US 2018033442W WO 2019221748 A1 WO2019221748 A1 WO 2019221748A1
Authority
WO
WIPO (PCT)
Prior art keywords
depth
toothed wheel
monolithic structure
machining
additive manufacturing
Prior art date
Application number
PCT/US2018/033442
Other languages
English (en)
Inventor
Fabian Enrique SANCHEZ
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/US2018/033442 priority Critical patent/WO2019221748A1/fr
Publication of WO2019221748A1 publication Critical patent/WO2019221748A1/fr

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
    • B22F10/20—Direct sintering or melting
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
    • B22F5/085—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs with helical contours
    • 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
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • 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
    • B33Y80/00—Products made by additive manufacturing
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present disclosure is directed to the field of manufacturing, more particular to additive manufacturing.
  • Typical machining requires material to be removed from a workpiece.
  • machining may be done by way of electrical methods such as electrical discharge machining (EDM) or electro mechanical machining (ECM). Both EDM and ECM remove material via electricity and a fluid medium, dielectric for EDM and conducive for ECM.
  • EDM and ECM remove material via electricity and a fluid medium, dielectric for EDM and conducive for ECM.
  • Numerous mechanical methods may be employed. Broaching and hobbing similar in which they both use a cutting tool, broach and hob respectively, to cut material away from the workpiece.
  • Other mechanical methods may include sanding or planning to remove material.
  • Laser may be, using a laser to melt, burn or vaporize material on the work piece may be used.
  • FIG. 1 illustrates an example of machining 10 via a cutting tool 11 of a workpiece 12.
  • the removal of the material is ordinarily wasteful. It may be a time c
  • Manufacturing systems and method may benefit from improvements.
  • an additive manufacturing method includes forming a monolithic structure on a build plate.
  • the formed monolithic structure includes a first tooth wheel and second toothed wheel.
  • the forming is by way of a material deposit head, which adds material, and which is controlled by a processor. Subsequent to the forming, the monolithic structure is removed from the build plate.
  • an additive manufacturing system includes a build plate, a material deposit head, and a processor.
  • the material deposit adds material to the build plate.
  • the processor controls the movement of the material deposit head and the deposition of material by the material deposit head.
  • a monolithic structure is formed orthogonally on the build plate.
  • the monolithic structure includes a plurality of toothed wheels.
  • FIG. 1 illustrates an example of mechanical machining via a cutting tool of a workpiece according to the prior art.
  • FIG. 2 and FIG. 3 illustrates a perspective views of embodiments of toothed wheels.
  • FIG. 4 illustrates a schematic of an exemplary additive manufacturing system 50 according to an embodiment.
  • FIG. 5 illustrates an exemplary monolithic structure 60 formed on the build plate 52 according to an embodiment.
  • additive manufacturing describes the technologies that build 3D objects by adding layer-upon-layer of material, regardless of the type of material.
  • AM equipment lays successive layers of material in a layer-upon-layer fashion to fabricate a 3D object.
  • the technologies may include 3D Printing, Rapid Prototyping (RP), Direct Digital Manufacturing (DDM), layered manufacturing and additive fabrication.
  • FIGs. 2-3 shows a perspective view of toothed wheels 20 according to various embodiments.
  • a tooth wheel is defined herein as an annular object with extending members. For example, a gear, fir tree disc or phonic wheel.
  • the toothed wheel 20 comprises a root circle 23 formed around axis A. Teeth 26, in the singular tooth, extend from the root circle 23 and are space apart by gaps 25.
  • the toothed wheel 20 has front face 27 and a back face 28.
  • a depth 19 of the toothed wheel 20 is defined as an axial length of the toothed wheel 20. For example, a distance between the front face 27 and the back face 28.
  • the toothed wheel 20 of FIG. 2 illustrates a gear 21. While FIG. 2 illustrates an axial gear comprising teeth extending radially outward from the root circle 23 and extends along axis A, this is merely for illustrative purposes and not to limit the type of gear. It would be understood that alternative teeth design and/or gap formation may occur on the gear 21.
  • a helical gear may be formed with the teeth oblique to the axis or an internal gear formed with the teeth on the inner surface.
  • FIG. 3 shows a perspective view of an exemplary toothed wheel 20 embodied as a fir tree disc 31.
  • a fir tree disc 31 is type of disc mount used in power generation. Teeth 26, resembling an inverted fir tree extend from the root circle 14.
  • FIG. 4 illustrates a schematic of an exemplary additive manufacturing system 50 according to an embodiment.
  • the system includes a build plate 52, a material deposit head 54 and a processor 56.
  • the processor 56 controls the movement of the material deposit head 54 and the deposition of a material by the material deposit head 54.
  • the material is deposited to form a monolithic structure, which comprises a plurality of toothed wheels.
  • FIG. 5 illustrates an exemplary monolithic structure 60 formed on the build plate 52 according to an embodiment.
  • the plurality of toothed wheels 20 are formed as a monolithic structure 60. Adjacent toothed wheels are adjoined and attached to one another.
  • the monolithic structure has a depth 69 which is at least the sum of the depth 19 of each of the toothed wheels 20 of the monolithic structure 60.
  • each of the toothed wheels formed as the monolithic structure 60 comprises the same depth.
  • at least one of the toothed wheels formed as the monolithic structure comprises a depth different than the remaining toothed wheels.
  • the monolithic structure 60 is formed orthogonal to the build plate 52.
  • the monolithic structure 60 is removed from the build plate after the formation.
  • the monolithic structure 60 may be separated into individual toothed wheels 20. The separation may be performed at any time prior to using one of the toothed wheels 20.
  • a separation of the toothed wheels 20 from the monolithic structure 60 may include at least one machining process.
  • the machining process may be, for example, base on electrical machining, mechanical machining or laser machining. The separation removes one or more toothed wheels 20 from the monolithic structure 60.
  • Additive manufacturing process can provide a high accuracy of the formation of the toothed wheel 10.
  • a small amount of excess material could be formed during the additive manufacturing. Any excess material may be removed.
  • the removal may be by any machining process.
  • a machining may be performed to obtain a desired tooth tolerance.
  • the machining for the tooth tolerance is after the separation.
  • the machining for the tooth tolerance is prior to the separation.
  • a machining may be performed to smooth at least one of the faces 24, 28 of the toothed wheel 20 after the separation.
  • the operation of smoothing may be performed with or without a removal of excess material.
  • a monolithic structure 60 would not have been performed by traditional machining. Machining would have taken too long to produce the monolithic structure.
  • a toothed wheel 20 may be more uniformly produced from a monolithic structure 60.
  • machining techniques listed herein are merely examples and not an exhaustive list. It would be understood that other machining techniques to remove material may be used.
  • phrases“associated with” and“associated therewith,” as well as derivatives thereof, may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have, have a property of, or the like.
  • first”, “second”, “third” and so forth may be used herein to refer to various elements, information, functions, or acts, these elements, information, functions, or acts should not be limited by these terms. Rather these numeral adjectives are used to distinguish different elements, information, functions or acts from each other. For example, a first element, information, function, or act could be termed a second element, information, function, or act, and, similarly, a second element, information, function, or act could be termed a first element, information, function, or act, without departing from the scope of the present disclosure.

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

Abstract

La présente invention concerne un système et un procédé de fabrication additive. La tête de dépôt de matériau ajoute un matériau en couches successives et est commandée par un processeur pour former une structure monolithique. La structure monolithique comprend une pluralité d'objets adjacents. Chacun des objets adjacents est fixé, par la fabrication, l'un à l'autre.
PCT/US2018/033442 2018-05-18 2018-05-18 Systèmes et procédés de fabrication additive WO2019221748A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2018/033442 WO2019221748A1 (fr) 2018-05-18 2018-05-18 Systèmes et procédés de fabrication additive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2018/033442 WO2019221748A1 (fr) 2018-05-18 2018-05-18 Systèmes et procédés de fabrication additive

Publications (1)

Publication Number Publication Date
WO2019221748A1 true WO2019221748A1 (fr) 2019-11-21

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014003441A1 (de) * 2014-03-10 2015-09-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Ausbilden eines Triebelements und Triebelement
US20160082659A1 (en) * 2014-09-18 2016-03-24 The Boeing Company Extruded Deposition of Polymers Having Continuous Carbon Nanotube Reinforcements
WO2016171715A1 (fr) * 2015-04-24 2016-10-27 Halliburton Energy Services, Inc. Procédé de fabrication de structures céramiques ou intermétalliques
EP3144485A1 (fr) * 2015-09-16 2017-03-22 Siemens Aktiengesellschaft Composant de turbomachine avec des éléments de refroidissement et procédé de fabrication d'un tel composant
US20180087660A1 (en) * 2016-09-23 2018-03-29 Borgwarner Inc. Transmission valve manifold and method of manufacturing a transmission valve manifold

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014003441A1 (de) * 2014-03-10 2015-09-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Ausbilden eines Triebelements und Triebelement
US20160082659A1 (en) * 2014-09-18 2016-03-24 The Boeing Company Extruded Deposition of Polymers Having Continuous Carbon Nanotube Reinforcements
WO2016171715A1 (fr) * 2015-04-24 2016-10-27 Halliburton Energy Services, Inc. Procédé de fabrication de structures céramiques ou intermétalliques
EP3144485A1 (fr) * 2015-09-16 2017-03-22 Siemens Aktiengesellschaft Composant de turbomachine avec des éléments de refroidissement et procédé de fabrication d'un tel composant
US20180087660A1 (en) * 2016-09-23 2018-03-29 Borgwarner Inc. Transmission valve manifold and method of manufacturing a transmission valve manifold

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