AT521527A3 - Additive manufacturing process for the production of graded workpieces - Google Patents

Additive manufacturing process for the production of graded workpieces Download PDF

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Publication number
AT521527A3
AT521527A3 ATA222/2018A AT2222018A AT521527A3 AT 521527 A3 AT521527 A3 AT 521527A3 AT 2222018 A AT2222018 A AT 2222018A AT 521527 A3 AT521527 A3 AT 521527A3
Authority
AT
Austria
Prior art keywords
workpieces
powder
less
graded
porous
Prior art date
Application number
ATA222/2018A
Other languages
German (de)
Other versions
AT521527A2 (en
Original Assignee
Karl Gruber Dr
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 Karl Gruber Dr filed Critical Karl Gruber Dr
Priority to ATA222/2018A priority Critical patent/AT521527A3/en
Publication of AT521527A2 publication Critical patent/AT521527A2/en
Publication of AT521527A3 publication Critical patent/AT521527A3/en

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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
    • 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
    • B22F3/02—Compacting only
    • 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
    • B22F3/11—Making porous workpieces or articles
    • 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
    • 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
    • B22F7/08—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 with one or more parts not made from 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • 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
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials

Abstract

Verfahren zur Herstellung von Werkstücken in einem Additiven Verfahren durch selektives verschmelzen einzelner Schichten mittels geeigneter Energiequelle, beispielsweise Laserstrahl oder Elektronenstrahl dadurch gekennzeichnet, dass die vorgelegten Einzelschichten aus porösen oder gepressten metallischen Platte bestehen, die aus einer Umwandlung von Metalloxiden gemäß [EP 1268105; US 6939509 ; CA 24224733] hergestellt wurden und sowohl im porösen als auch im gepressten Zustand noch sehr hohe Sinteraktivität aufweisen. Durch die Verwendung von Platten statt Pulvern ist Voraussetzung dafür, dass gradierte Werkstücke in x-y und/oder z Richtung gebaut werden können. Die Hauptvorteile des Verfahrens im Vergleich zu herkömmlichen Pulverbasierten Verfahren ist die geringere Staubentwicklung, die Möglichkeit der Gradierung in x,y und z Richtung, geringere Porenbildung durch höhere Dichte vor dem Lasern sowie höhere Sinteraktivität durch die vorhandene Feinkristallinität, dadurch auch Verwendung kleinerer Laserleistung als bei pulverbasierten Systemen möglich was Investkosten in das Lasersystem spart bzw. höhere Bauraten ermöglicht, unter magnetischem Feld arbeitsfähig und generell wirtschaftlicher als Pulversysteme in der gesamten wirtschaftlichen Betrachtung.Process for the production of workpieces in an additive process by selectively fusing individual layers by means of a suitable energy source, for example laser beam or electron beam, characterized in that the individual layers provided consist of porous or pressed metallic plates, which consist of a conversion of metal oxides according to [EP 1268105; US6939509; CA 24224733] and still have very high sintering activity both in the porous and in the pressed state. By using plates instead of powders, it is a prerequisite that graded workpieces can be built in the x-y and/or z direction. The main advantages of the process compared to conventional powder-based processes are less dust formation, the possibility of grading in the x, y and z direction, less pore formation due to higher density before lasering and higher sintering activity due to the existing fine crystallinity, which means that less laser power is used than with powder-based systems possible, which saves investment costs in the laser system or enables higher construction rates, can work under a magnetic field and is generally more economical than powder systems from an overall economic perspective.

ATA222/2018A 2018-07-25 2018-07-25 Additive manufacturing process for the production of graded workpieces AT521527A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ATA222/2018A AT521527A3 (en) 2018-07-25 2018-07-25 Additive manufacturing process for the production of graded workpieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA222/2018A AT521527A3 (en) 2018-07-25 2018-07-25 Additive manufacturing process for the production of graded workpieces

Publications (2)

Publication Number Publication Date
AT521527A2 AT521527A2 (en) 2020-02-15
AT521527A3 true AT521527A3 (en) 2022-03-15

Family

ID=69493985

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA222/2018A AT521527A3 (en) 2018-07-25 2018-07-25 Additive manufacturing process for the production of graded workpieces

Country Status (1)

Country Link
AT (1) AT521527A3 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10014403A1 (en) * 2000-03-24 2001-09-27 Wolfgang Kochanek Process for the powder metallurgy production of metal bodies comprises mixing a metal compound powder such as oxide powder with a rheology-improving additive, removing the additive; and reducing the metal compound using a reducing gas
US20140314964A1 (en) * 2013-04-18 2014-10-23 Arcam Ab Method and apparatus for additive manufacturing
US20160307678A1 (en) * 2013-12-12 2016-10-20 Exmet Ab Magnetic materials and methods for their manufacture
EP3030374B1 (en) * 2013-08-09 2018-07-18 United Technologies Corporation Additive manufacturing method and apparatus for integrating multiple materials in a foil consolidation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10014403A1 (en) * 2000-03-24 2001-09-27 Wolfgang Kochanek Process for the powder metallurgy production of metal bodies comprises mixing a metal compound powder such as oxide powder with a rheology-improving additive, removing the additive; and reducing the metal compound using a reducing gas
US20140314964A1 (en) * 2013-04-18 2014-10-23 Arcam Ab Method and apparatus for additive manufacturing
EP3030374B1 (en) * 2013-08-09 2018-07-18 United Technologies Corporation Additive manufacturing method and apparatus for integrating multiple materials in a foil consolidation
US20160307678A1 (en) * 2013-12-12 2016-10-20 Exmet Ab Magnetic materials and methods for their manufacture

Also Published As

Publication number Publication date
AT521527A2 (en) 2020-02-15

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Effective date: 20220815