Patents by Inventor Gérard SAUSSEREAU

Gérard SAUSSEREAU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11148204
    Abstract: A method for fabricating a part by selective melting or sintering of powder beds by high energy beam, the method including a) providing a material in the form of powder particles; b) depositing a first powder layer on a support; c) scanning a region of the first layer with the beam to heat the powder locally to a temperature higher than the powder sintering temperature, such that the powder particles as melted or sintered form a first single-piece element; d) depositing a second powder layer on the first powder layer; e) scanning a region of the second layer with the beam to heat the powder to a temperature higher than the powder sintering temperature, so that the particles of powder as sintered or melted form a second single-piece element; and f) repeating d) and e) for each new powder layer laid over a preceding layer until the part is formed.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: October 19, 2021
    Assignees: SAFRAN AIRCRAFT ENGINES, MBDA FRANCE
    Inventors: Christophe Colin, Jean-Baptiste Mottin, Laëtitia Kirschner, Gérard Saussereau
  • Patent number: 10967460
    Abstract: A method of fabricating a part includes: a) supplying powder particles; b) melting a first quantity of power with a beam and forming, on a support, a first pool including the melted powder and a portion of the support; c) forming a second pool by melting a second quantity of powder on the support; d) repeating c) to form a first layer; e) heating an [n]th quantity of the powder, and forming an [n]th pool above the first layer; f) heating an [n+1]th quantity of the powder, and forming an [n+1]th pool downstream from the [n]th pool above the first layer; g) repeating f) to form a second layer above the first layer; and h) repeating e) to g) until the part is constructed. The powder particles reaching each pool are at a temperature well below the pool temperature.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: April 6, 2021
    Assignees: SAFRAN AIRCRAFT ENGINES, MBDA FRANCE
    Inventors: Christophe Colin, Julie Maisonneuve, Gérard Saussereau
  • Publication number: 20150321255
    Abstract: A method for fabricating a part by selective melting or sintering of powder beds by high energy beam, the method including a) providing a material in the form of powder particles; b) depositing a first powder layer on a support; c) scanning a region of the first layer with the beam to heat the powder locally to a temperature higher than the powder sintering temperature, such that the powder particles as melted or sintered form a first single-piece element; d) depositing a second powder layer on the first powder layer; e) scanning a region of the second layer with the beam to heat the powder to a temperature higher than the powder sintering temperature, so that the particles of powder as sintered or melted form a second single-piece element; and f) repeating d) and e) for each new powder layer laid over a preceding layer until the part is formed.
    Type: Application
    Filed: November 27, 2013
    Publication date: November 12, 2015
    Inventors: Christophe COLIN, Jean-Baptiste MOTTIN, Laëtitia KIRSCHNER, Gérard SAUSSEREAU
  • Publication number: 20150306820
    Abstract: A method for fabricating a part by melting powder with the help of a high energy beam uses a device that includes a building support for receiving at least one powder layer; a high energy beam generator suitable for raising particles of the powder to a temperature higher than their melting temperature TF, and for forming a liquid pool including at least the particles of the melted powder, and an auxiliary heater device that is suitable for heating the material situated in a zone adjacent to the pool to a temperature that is lower than the melting temperature TF, the zone including at least one region selected from an upstream region situated upstream from the pool and a downstream region situated downstream from the pool.
    Type: Application
    Filed: November 29, 2013
    Publication date: October 29, 2015
    Inventors: Christophe COLIN, Jean-François FROMENTIN, Gérard SAUSSEREAU
  • Publication number: 20150298259
    Abstract: A method of fabricating a part, includes a) supplying powder particles; b) heating a first quantity of powder to a melting temperature higher than that of the powder with a beam, and forming, on a support, a first pool including the melted powder and a portion of the support; c) heating a second quantity of the powder, and forming, on the support, a second pool; d) repeating c) to form a first layer; e) heating an [n]th quantity of the powder, and forming an [n]th pool above the first layer; f) heating an [n+1]th quantity of the powder, and forming an [n+1]th pool downstream from the [n]th pool above the first layer; g) repeating f) to form a second layer above the first layer; and h) repeating e) to g) until the part is constructed. The powder particles reaching each pool are at a temperature well below the pool temperature.
    Type: Application
    Filed: November 29, 2013
    Publication date: October 22, 2015
    Applicant: MBDA FRANCE
    Inventors: Christophe COLIN, Julie MAISONNEUVE, Gérard SAUSSEREAU