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    Unpacking device allowing residual raw material powder removal
    1.
    发明授权
    Unpacking device allowing residual raw material powder removal 有权

    公开(公告)号：US10543530B2

    公开(公告)日：2020-01-28

    申请号：US15350084

    申请日：2016-11-13

    Applicant: SLM Solutions Group AG

    Inventor： André Hermann ,  Toni Adam Krol ,  Andreas Wiesner ,  Jan Wilkes ,  Bodo Haack ,  Karsten Huebinger ,  Peter Koerner ,  Simon Mueller ,  Kaj Merten Berggreen ,  Jonas Mersch

    IPC: B22F3/105 ,  B33Y40/00 ,  B33Y30/00 ,  B23K26/342 ,  B23K26/70 ,  B23K15/00 ,  B23K26/16

    Abstract: An unpacking device for use in an apparatus for producing a three-dimensional work piece by irradiating layers of a raw material powder with electromagnetic or particle radiation, the unpacking device comprises a holding device which is configured to hold a building chamber arrangement. The building chamber arrangement comprises a building chamber accommodating a carrier, wherein the carrier is configured to receive a three-dimensional work piece produced from a raw material powder by an additive layering process. An engagement unit of the unpacking device is configured to engage with the carrier of the building chamber arrangement. A moving mechanism is configured to cause a relative movement between the building chamber and the engagement unit with the carrier engaged therewith so as to allow a separation of the carrier with a three-dimensional work piece received thereon from the building chamber. Finally, the unpacking device comprises a raw material powder removal mechanism which is configured to cause at least one of a vibration and a rotation of the engagement unit with the carrier engaged therewith so as to remove residual raw material powder from the three-dimensional work piece received on the carrier.

    Method and device for controlling an irradiation system
    2.
    发明授权
    Method and device for controlling an irradiation system 有权

    公开(公告)号：US09878497B2

    公开(公告)日：2018-01-30

    申请号：US14550439

    申请日：2014-11-21

    Applicant: SLM Solutions Group AG

    Inventor： Dieter Schwarze ,  Andreas Wiesner

    IPC: G06F19/00 ,  B29C67/00 ,  B22F3/105 ,  B23K26/06 ,  B33Y50/02 ,  G05B15/02 ,  B23K26/342 ,  B29C64/386 ,  B29C64/153

    CPC classification number: B29C64/386 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B23K26/0604 ,  B23K26/342 ,  B29C64/153 ,  B33Y50/02 ,  G05B15/02 ,  Y02P10/295

    Abstract: A method for controlling an irradiation system (20) for use in an apparatus (10) for producing a three-dimensional work piece and comprising a plurality of irradiation units (22a, 22b) a first and a second irradiation area (18a, 18b) as well as an overlap area (26) arranged between the first and the second irradiation area (18a, 18b) is defined on a surface of a carrier (16) adapted to receive a layer of raw material powder. A first irradiation area (22a) of the irradiation system (20) is assigned to the first irradiation area (18a) and the overlap area (26), and a second irradiation unit (22b) of the irradiation system (20) is assigned to the second irradiation area (18b) and the overlap area (26). If it is determined that a section (S) or a radiation pattern according to which radiation beams (24a, 24b) emitted by the irradiation units (22a, 22b) of the irradiation system (20) are guided over the layer of raw material powder received on the carrier (16) and/or a contour (C) of the three-dimensional work piece to be produced extend(s) into the first and the second irradiation area (18a, 18b) defined on the surface of the carrier (16), said section (S) of the radiation pattern and/or said contour (C), in a splitting region of the section (S) of the radiation pattern and/or the contour (C) which is located in the overlap area (26) arranged between the first and the second irradiation area (18a, 18b), is split into a first portion (S1, C1) and a second portion (S2, C2). The first portion (S1, C1) of said section (S) of the radiation pattern and/or said contour (C) is assigned to the first irradiation unit (22a) and the second portion (S2, C2) of said section (S) of the radiation pattern and/or said contour (C) is assigned to the second irradiation unit (22b).

    METHOD AND APPARATUS
    5.
    发明申请
    METHOD AND APPARATUS 有权

    公开(公告)号：US20220193772A1

    公开(公告)日：2022-06-23

    申请号：US17606114

    申请日：2020-03-31

    Applicant: SLM Solutions Group AG

    Inventor： Lukas Roesgen ,  Daniel Brueck ,  Andreas Wiesner

    IPC: B22F10/31 ,  B22F12/17 ,  B22F12/41 ,  B22F12/30 ,  B22F12/90 ,  B33Y30/00 ,  B33Y50/02

    Abstract: We describe a calibration method for calibrating one or more optical elements of an additive layer manufacturing apparatus useable for producing a three-dimensional workpiece, the method comprising: projecting, using the one or more optical elements, an optical pattern onto a material in order to prepare, from said material, solidified material layers using an additive layer manufacturing technique to form a test sample; determining a geometry of the test sample; comparing the determined geometry with a nominal geometry to generate calibration data; and calibrating the one or more optical elements using said calibration data.

    Method and apparatus for producing three-dimensional work pieces
    8.
    发明授权
    Method and apparatus for producing three-dimensional work pieces 有权

    公开(公告)号：US10335854B2

    公开(公告)日：2019-07-02

    申请号：US14242369

    申请日：2014-04-01

    Applicant: SLM SOLUTIONS GROUP AG

    Inventor： Andreas Wiesner ,  Dieter Schwarze

    IPC: B22F3/105 ,  B23K26/142 ,  B23K26/14 ,  B23K26/144 ,  B33Y10/00 ,  B23K26/16 ,  B29C64/153 ,  B29C64/386 ,  B23K26/12 ,  B33Y30/00

    Abstract: A method for producing three-dimensional work pieces comprises the steps of supplying gas to a process chamber accommodating a carrier and a powder application device, applying a layer of raw material powder onto the carrier by means of the powder application device, selectively irradiating electromagnetic or particle radiation onto the raw material powder applied onto the carrier by means of an irradiation device, discharging gas containing particulate impurities from the process chamber, and controlling the operation of the irradiation device by means of a control unit such that a radiation beam emitted by at least one radiation source of the irradiation device is guided over the layer of raw material powder applied onto the carrier according to a radiation pattern containing a plurality of scan vectors.

    Method and device for controlling an irradiation system for producing workpieces
    9.
    发明授权
    Method and device for controlling an irradiation system for producing workpieces 有权

    公开(公告)号：US11639028B2

    公开(公告)日：2023-05-02

    申请号：US16487290

    申请日：2018-01-15

    Applicant: SLM SOLUTIONS GROUP AG

    Inventor： Andreas Wiesner ,  Jan Wilkes ,  Christiane Thiel ,  Lukas Roesgen

    IPC: B22F3/105 ,  B29C64/153 ,  B33Y30/00 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/277

    Abstract: The invention relates to a method for controlling an irradiation system (20), the irradiation system (20) being used in a device (10) for the additive manufacturing of three-dimensional workpieces and comprising at least three irradiation units (22a-d, 50), the method comprising the following steps: a) defining an irradiation region (30a-d) for each of the irradiation units (22a-d, 50), the irradiation regions (30a-d) each comprising a portion of an irradiation plane (28) which extends parallel to a carrier (16) of the device (10), and the irradiation regions (30a-d) being defined such that they overlap in a common overlap region (34); b) irradiating a raw material powder layer on the carrier (16) to produce a workpiece layer; c) arranging a further raw material powder layer on the already jetted raw material powder layer to produce a further workpiece layer. d) The invention also relates to a device for performing this method.

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