Search Patents
  • Method and device for producing three-dimensional objects
    Patent number: 9162394
    Abstract: The invention concerns a method for producing three-dimensional objects (3) layer by layer using a powdery material (5) which can be solidified by irradiating it with a high-energy beam.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: October 20, 2015
    Assignee: Arcam AB
    Inventor: Ulf Ackelid
  • METHOD AND DEVICE FOR PRODUCING THREE-DIMENSIONAL OBJECTS
    Publication number: 20100163405
    Abstract: The invention concerns a method for producing three-dimensional objects (3) layer by layer using a powdery material (5) which can be solidified by irradiating it with a high-energy beam.
    Type: Application
    Filed: May 14, 2008
    Publication date: July 1, 2010
    Applicant: ARCAM AB
    Inventor: Ulf Ackelid
  • METHOD AND DEVICE FOR PRODUCING THREE-DIMENSIONAL OBJECTS
    Publication number: 20120234671
    Abstract: The invention concerns a method for producing three-dimensional objects (3) layer by layer using a powdery material (5) which can be solidified by irradiating it with a high-energy beam.
    Type: Application
    Filed: May 31, 2012
    Publication date: September 20, 2012
    Applicant: Arcam AB
    Inventor: Ulf Ackelid
  • Method and device for producing three-dimensional objects
    Patent number: 9162393
    Abstract: The invention concerns a method for producing three-dimensional objects (3) layer by layer using a powdery material (5) which can be solidified by irradiating it with a high-energy beam.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: October 20, 2015
    Assignee: Arcam AB
    Inventor: Ulf Ackelid
  • ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL ARTICLES
    Publication number: 20200246869
    Abstract: The present invention relates to a method for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the step of heating a first portion of a support surface while depositing a layer of powder material on a second portion of the support surface.
    Type: Application
    Filed: September 25, 2018
    Publication date: August 6, 2020
    Inventors: Ulric Ljungblad, Ulf Ackelid
  • ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL ARTICLES
    Publication number: 20150165524
    Abstract: The present invention relates to a method for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the step of heating a first portion of a support surface while depositing a layer of powder material on a second portion of the support surface.
    Type: Application
    Filed: November 19, 2014
    Publication date: June 18, 2015
    Inventors: Ulric Ljungblad, Ulf Ackelid
  • ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL ARTICLES
    Publication number: 20190022751
    Abstract: The present invention relates to a method for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the step of heating a first portion of a support surface while depositing a layer of powder material on a second portion of the support surface.
    Type: Application
    Filed: September 25, 2018
    Publication date: January 24, 2019
    Inventors: Ulric Ljungblad, Ulf Ackelid
  • Additive manufacturing of three-dimensional articles
    Patent number: 10974448
    Abstract: The present invention relates to a method for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the step of heating a first portion of a support surface while depositing a layer of powder material on a second portion of the support surface.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: April 13, 2021
    Assignee: Arcam AB
    Inventors: Ulric Ljungblad, Ulf Ackelid
  • Additive manufacturing of three-dimensional articles
    Patent number: 10130993
    Abstract: The present invention relates to a method for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the step of heating a first portion of a support surface while depositing a layer of powder material on a second portion of the support surface.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: November 20, 2018
    Assignee: Arcam AB
    Inventors: Ulric Ljungblad, Ulf Ackelid
  • METHOD AND APPARATUS FOR ADDITIVE MANUFACTURING
    Publication number: 20170080495
    Abstract: Various embodiments provide a method and apparatus for forming a three-dimensional article through successive fusion of parts of at least one layer of a powder bed provided on a work table in an additive manufacturing machine, which parts corresponds to successive cross sections of the three-dimensional article. The method comprises the steps of: applying a layer of predetermined thickness of powder particles on the work table, applying a coating on at least a portion of the powder particles, which coating is at least partially covering the powder particles, and fusing the powder particles on the work table with an electron beam.
    Type: Application
    Filed: December 7, 2016
    Publication date: March 23, 2017
    Inventor: Ulf Ackelid
  • PREHEATING OF POWDER BED
    Publication number: 20230150201
    Abstract: An arrangement for additive manufacturing by selective fusion of layers of a three-dimensional product from a powder bed including successively formed powder layers is provided. The arrangement includes a heating element having a powder layer facing surface, arranged in a powder layer heating position above a powder layer, in such a way that heat radiation emitted from said heating element heats at least a part of the powder layer before the selective fusion of a layer of the three-dimensional product from the powder layer.
    Type: Application
    Filed: April 16, 2021
    Publication date: May 18, 2023
    Applicant: Freemelt AB
    Inventor: Ulf ACKELID
  • METHOD AND APPARATUS FOR ADDITIVE MANUFACTURING
    Publication number: 20140314964
    Abstract: Various embodiments provide a method and apparatus for forming a three-dimensional article through successive fusion of parts of at least one layer of a powder bed provided on a work table in an additive manufacturing machine, which parts corresponds to successive cross sections of the three-dimensional article. The method comprises the steps of: applying a layer of predetermined thickness of powder particles on the work table, applying a coating on at least a portion of the powder particles, which coating is at least partially covering the powder particles, and fusing the powder particles on the work table with an electron beam.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 23, 2014
    Applicant: ARCAM AB
    Inventor: Ulf Ackelid
  • Method and apparatus for additive manufacturing
    Patent number: 9713844
    Abstract: Various embodiments provide a method and apparatus for forming a three-dimensional article through successive fusion of parts of at least one layer of a powder bed provided on a work table in an additive manufacturing machine, which parts corresponds to successive cross sections of the three-dimensional article. The method comprises the steps of: applying a layer of predetermined thickness of powder particles on the work table, applying a coating on at least a portion of the powder particles, which coating is at least partially covering the powder particles, and fusing the powder particles on the work table with an electron beam.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: July 25, 2017
    Assignee: Arcam AB
    Inventor: Ulf Ackelid
  • ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL ARTICLES
    Publication number: 20170136542
    Abstract: The present invention relates to a methods, computer program products, program elements, and apparatuses for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article. The method comprising the steps of providing at least one electron beam source emitting an electron beam for at least one of heating or fusing the powder material, where the electron beam source comprises a cathode and an anode, and varying an accelerator voltage between the cathode and the anode between at least a first and second predetermined value during the forming of the three-dimensional article.
    Type: Application
    Filed: November 7, 2016
    Publication date: May 18, 2017
    Inventors: Johan Nordkvist, Ulf Ackelid
  • METHOD AND APPARATUS FOR ADDITIVE MANUFACTURING
    Publication number: 20170080494
    Abstract: Various embodiments provide a method and apparatus for forming a three-dimensional article through successive fusion of parts of at least one layer of a powder bed provided on a work table in an additive manufacturing machine, which parts corresponds to successive cross sections of the three-dimensional article. The method comprises the steps of: applying a layer of predetermined thickness of powder particles on the work table, applying a coating on at least a portion of the powder particles, which coating is at least partially covering the powder particles, and fusing the powder particles on the work table with an electron beam.
    Type: Application
    Filed: December 7, 2016
    Publication date: March 23, 2017
    Inventor: Ulf Ackelid
  • Apparatus for additive manufacturing
    Patent number: 9950366
    Abstract: Various embodiments provide a method and apparatus for forming a three-dimensional article through successive fusion of parts of at least one layer of a powder bed provided on a work table in an additive manufacturing machine, which parts corresponds to successive cross sections of the three-dimensional article. The method comprises the steps of: applying a layer of predetermined thickness of powder particles on the work table, applying a coating on at least a portion of the powder particles, which coating is at least partially covering the powder particles, and fusing the powder particles on the work table with an electron beam.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: April 24, 2018
    Assignee: Arcam AB
    Inventor: Ulf Ackelid
  • Method and apparatus for additive manufacturing
    Patent number: 9550207
    Abstract: Various embodiments provide a method and apparatus for forming a three-dimensional article through successive fusion of parts of at least one layer of a powder bed provided on a work table in an additive manufacturing machine, which parts corresponds to successive cross sections of the three-dimensional article. The method comprises the steps of: applying a layer of predetermined thickness of powder particles on the work table, applying a coating on at least a portion of the powder particles, which coating is at least partially covering the powder particles, and fusing the powder particles on the work table with an electron beam.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: January 24, 2017
    Assignee: Arcam AB
    Inventor: Ulf Ackelid
  • Additive manufacturing of three-dimensional articles
    Patent number: 10610930
    Abstract: The present invention relates to a methods, computer program products, program elements, and apparatuses for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article. The method comprising the steps of providing at least one electron beam source emitting an electron beam for at least one of heating or fusing the powder material, where the electron beam source comprises a cathode and an anode, and varying an accelerator voltage between the cathode and the anode between at least a first and second predetermined value during the forming of the three-dimensional article.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: April 7, 2020
    Assignee: Arcam AB
    Inventors: Johan Nordkvist, Ulf Ackelid
  • METHOD AND APPARATUS FOR PRODUCING THREE-DIMENSIONAL OBJECTS
    Publication number: 20150151490
    Abstract: The invention concerns an apparatus (1) for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, said apparatus (1) comprising means for successive application of powder layers to a work table, and a radiation gun (3) for delivering said beam (4) of charged particles, wherein the inventive apparatus (1) comprises a powder-lifting detection device (10, 10 a, 10 b, 10 c, 10 d, 10 e) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5).
    Type: Application
    Filed: February 10, 2015
    Publication date: June 4, 2015
    Inventors: Daniel Jonasson, Morgan Larsson, Ulf Ackelid, Anders Snis, Tomas Lock
  • ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL ARTICLES
    Publication number: 20200282459
    Abstract: The present invention relates to a methods, computer program products, program elements, and apparatuses for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article. The method comprising the steps of providing at least one electron beam source emitting an electron beam for at least one of heating or fusing the powder material, where the electron beam source comprises a cathode and an anode, and varying an accelerator voltage between the cathode and the anode between at least a first and second predetermined value during the forming of the three-dimensional article.
    Type: Application
    Filed: February 21, 2020
    Publication date: September 10, 2020
    Inventors: Johan Nordkvist, Ulf Ackelid
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