公开(公告)号：US20190077086A1

公开(公告)日：2019-03-14

申请号：US16189562

申请日：2018-11-13

Applicant: SLM Solutions Group AG

Inventor： Christopher Stengel ,  Daniel Alberts ,  Dieter Schwarze ,  Toni Adam Krol

IPC: B29C64/393 ,  G06T7/73 ,  G06T7/13 ,  B29C64/153 ,  B29C64/268

Abstract: A device (48) for calibrating an irradiation system (18) of an apparatus (10) for producing a three-dimensional work piece comprises a control unit (50) adapted to control the irradiation system (18) so as to irradiate a radiation beam (22; 22a, 22b) onto an irradiation plane (52) according to a calibration pattern. The device (48) further comprises a sensor arrangement (56) adapted to be arranged in the irradiation plane (52) and to output signals to the control unit (50) in response to being irradiated with the radiation beam (22; 22a, 22b) according to the calibration pattern. The control unit (50) further is adapted to generate a digital image of an actual irradiation pattern produced by the radiation beans (22; 22a, 22b) incident on the sensor arrangement (56) based on the signals output by the sensor arrangement (56), to compare the digital image of the actual irradiation pattern with a digital image of a reference pattern so as to determine a deviation between the actual irradiation pattern and the reference pattern, and to calibrate the irradiation system (18) based on the determined deviation between the actual irradiation pattern and the reference pattern.

公开(公告)号：US20180043621A1

公开(公告)日：2018-02-15

申请号：US15672816

申请日：2017-08-09

Applicant: SLM Solutions Group AG

Inventor： Birk Hoppe ,  Felix Mutz ,  Dieter Schwarze ,  Toni Adam Krol

IPC: B29C64/393 ,  B29C64/295 ,  B33Y30/00 ,  B29C64/264

CPC classification number: B29C64/393 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2201/10 ,  B22F2203/11 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/264 ,  B29C64/295 ,  B29C64/371 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2203/03

Abstract: The invention relates to an apparatus for producing a three-dimensional workpiece, said apparatus comprising: a carrier being arranged in a process chamber of the apparatus and adapted to receive a layer of raw material powder; an irradiation device for selectively irradiating electromagnetic or particle radiation onto the raw material powder applied onto the carrier in order to produce the workpiece from said raw material powder by an additive layer construction method; and a shielding gas supply system adapted to supply a shielding gas to the process chamber, wherein the apparatus further comprises a shielding gas control system that is adapted to control the temperature of the shielding gas.

公开(公告)号：US20170144874A1

公开(公告)日：2017-05-25

申请号：US15345025

申请日：2016-11-07

Applicant: SLM Solutions Group AG

Inventor： Karsten Huebinger ,  Toni Adam Krol ,  Dieter Schwarze ,  Eduard Gieser

IPC: B66F11/00 ,  B25J21/02 ,  B66F9/02 ,  B33Y40/00

Abstract: An unpacking system (26) for use in an apparatus (10) for producing three-dimensional work pieces by irradiating layers of a raw material powder with electromagnetic or particle radiation comprises a supporting structure (28) which is configured to support a building chamber arrangement (25). The building chamber arrangement (25) comprises a building chamber (18) accommodating a carrier (16), the carrier (16) being configured to receive a three-dimensional work piece (11) produced from a raw material powder by an additive layering process. A lowering mechanism (30) of the unpacking system (26) is configured to apply a driving force to the building chamber (18) so as to lower the building chamber (18) relative to the carrier (16) until a three-dimensional work piece (11) received on the carrier (16) can be removed from the carrier (16).

公开(公告)号：US20170136543A1

公开(公告)日：2017-05-18

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 ,  B23K26/70 ,  B23K26/342 ,  B23K26/16 ,  B33Y30/00 ,  B23K15/00

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1059 ,  B23K15/0026 ,  B23K15/0086 ,  B23K26/16 ,  B23K26/342 ,  B23K26/702 ,  B29C64/153 ,  B29C64/35 ,  B33Y30/00 ,  B33Y40/00 ,  Y02P10/295

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.

公开(公告)号：US20170113449A1

公开(公告)日：2017-04-27

申请号：US15297800

申请日：2016-10-19

Applicant: SLM Solutions Group AG

Inventor： Benno Haupt ,  Arne Neef ,  Dieter Schwarze ,  Toni Adam Krol

IPC: B33Y30/00 ,  B33Y50/02 ,  B33Y40/00

CPC classification number: B33Y30/00 ,  B22F3/1055 ,  B22F2003/1056 ,  B28B1/001 ,  B29C64/153 ,  B33Y10/00 ,  Y02P10/295

Abstract: A powder application arrangement for use in an apparatus for manufacturing work pieces by irradiating powder layers with electromagnetic radiation or particle radiation, the powder application arrangement comprises a carrier adapted to receive layers of a raw material powder and a work piece made of the raw material powder by a generative layer construction method. The powder application arrangement further includes a powder application device configured to deposit the raw material powder onto the carrier At least one camera is attached to the powder application device in such a position that it is capable of acquiring images of at least one of a surface of a raw material powder layer applied onto the carrier by means of the powder application device and a surface of the work piece made of the raw material powder by a generative layer construction method while the powder application device is moved across the carrier.

公开(公告)号：US11260584B2

公开(公告)日：2022-03-01

申请号：US17286075

申请日：2019-10-01

Applicant: SLM Solutions Group AG

Inventor： Toni Adam Krol ,  Jan Wilkes ,  Christopher Stengel

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/286 ,  B29C64/268

Abstract: The invention relates to a method for producing a three-dimensional workpiece. The method comprises irradiating a raw material layer with a laser beam, wherein a melt bath is produced at a point at which the laser beam impinges on the raw material layer, changing a position of the laser beam on the raw material layer with the aid of a first diverting unit and changing the position of the laser beam on the raw material layer with the aid of a second diverting unit. The second diverting unit is designed to divert the position of the laser beam with a greater acceleration than a maximum possible acceleration of a diversion by the first diverting unit. The invention also relates to a device for producing a three-dimensional workpiece.

公开(公告)号：US20210354372A1

公开(公告)日：2021-11-18

申请号：US17286075

申请日：2019-10-01

Applicant: SLM Solutions Group AG

Inventor： Toni Adam Krol ,  Jan Wilkes ,  Christopher Stengel

IPC: B29C64/153 ,  B29C64/268 ,  B29C64/286 ,  B33Y10/00 ,  B33Y30/00

Abstract: The invention relates to a method for producing a three-dimensional workpiece. The method comprises irradiating a raw material layer with a laser beam, wherein a melt bath is produced at a point at which the laser beam impinges on the raw material layer, changing a position of the laser beam on the raw material layer with the aid of a first diverting unit and changing the position of the laser beam on the raw material layer with the aid of a second diverting unit. The second diverting unit is designed to divert the position of the laser beam with a greater acceleration than a maximum possible acceleration of a diversion by the first diverting unit. The invention also relates to a device for producing a three-dimensional workpiece.

公开(公告)号：US10919287B2

公开(公告)日：2021-02-16

申请号：US15215133

申请日：2016-07-20

Applicant: SLM Solutions Group AG

Inventor： Andreas Wiesner ,  Dieter Schwarze ,  Toni Adam Krol

IPC: B33Y50/02 ,  B33Y10/00 ,  B23K26/02 ,  B23K26/342 ,  B22F3/105 ,  B29C64/153 ,  B23K26/06 ,  B23K26/082 ,  B33Y30/00 ,  B23K26/08

Abstract: In a method for controlling an irradiation system for use in an apparatus for producing a three-dimensional work piece, a first and a second irradiation area as well as an overlap area arranged between the first and the second irradiation area are defined on a surface of a carrier adapted to receive layers of a raw material powder to be irradiated with electromagnetic or particle radiation emitted by the irradiation system. A first irradiation unit of the irradiation system is assigned to the first irradiation area and the overlap area, and a second irradiation unit of the irradiation system is assigned to the second irradiation area and the overlap area. At least one of the first irradiation area, the second irradiation area and the overlap area is defined in dependence on a geometry of the three-dimensional work piece to be produced.

公开(公告)号：US10682701B2

公开(公告)日：2020-06-16

申请号：US15248487

申请日：2016-08-26

Applicant: SLM Solutions Group AG

Inventor： Jan Wilkes ,  Toni Adam Krol ,  Dieter Schwarze

IPC: B22F3/105 ,  B23K26/142 ,  B23K26/12 ,  B33Y40/00 ,  B29C64/153 ,  B29C64/20 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B23K26/342 ,  B28B1/00

Abstract: An apparatus for producing a three-dimensional work piece, the apparatus comprises a process chamber accommodating a carrier for receiving a raw material powder, an irradiation device for selectively irradiating electromagnetic or particle radiation onto the raw material powder on the carrier in order to produce a work piece made of said raw material powder by an additive layer construction method, a first gas inlet for supplying gas to the process chamber and a gas outlet for discharging gas from the process chamber, wherein the first gas inlet and the gas outlet are configured and arranged in such a manner that a first gas flow across the carrier is generated, a transmission element which allows the transmission of the electromagnetic or particle radiation emitted by the irradiation device into the process chamber, and a second gas inlet for supplying gas to the process chamber, wherein the second gas inlet is configured and arranged in such a manner that a second gas flow in a direction facing away from the transmission element is generated.

公开(公告)号：US10543529B2

公开(公告)日：2020-01-28

申请号：US15293781

申请日：2016-10-14

Applicant: SLM Solutions Group AG

Inventor： Dieter Schwarze ,  Toni Adam Krol

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/70 ,  B23K15/00 ,  B23K15/02 ,  B28B1/00 ,  B22F3/10

Abstract: An apparatus for producing a three-dimensional work piece comprises a carrier to receive a layer of raw material powder, a control unit, an irradiation system adapted to selectively irradiate electromagnetic or particle radiation onto the layer of raw material powder applied onto the carrier, wherein the control unit controls the operation of the irradiation system in such a manner that the raw material powder is heated to a first temperature which allows sintering and/or melting of the raw material powder in order to generate a layer of the three-dimensional work piece, and a heating system adapted to selectively irradiate electromagnetic or particle radiation onto the layer of raw material powder applied onto the carrier, wherein the control unit is adapted to control the operation of the heating system in such a manner that the raw material powder is heated to a second temperature that is lower than the first temperature.