公开(公告)号：US20220193771A1

公开(公告)日：2022-06-23

申请号：US17619320

申请日：2020-06-16

Applicant: SLM SOLUTIONS GROUP AG

Inventor： Toni Adam Krol ,  Christopher Stengel ,  Dieter Schwarze

IPC: B22F10/28 ,  B22F12/55 ,  B22F10/66 ,  B22F12/17 ,  B22F10/37 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B33Y40/20 ,  B33Y70/00

Abstract: In a method for producing a three-dimensional workpiece (12), a first raw material powder (50) is applied to a substrate (18) in order to produce a raw material powder layer consisting of the first raw material powder (50). The raw material powder layer consisting of the first raw material powder (50) is selectively irradiated with electromagnetic radiation or particle radiation in order to produce a solidified first workpiece layer portion (52) from the first raw material powder (50). Non-solidified first raw material powder (50) is then removed from the substrate (18). In the next step, a second raw material powder (54) is applied to the substrate (18), in order to produce a raw material powder layer portion consisting of the second raw material powder (54) adjacent to the first workpiece layer portion (52), The raw material powder layer portion is selectively irradiated with electromagnetic radiation or particle radiation in order to produce a solidified second workpiece layer portion (56) from the second raw material powder (54) adjacent to the first workpiece layer portion (52). The non-solidified second raw material powder (54) is heated in order to produce a continuous porous sintered layer portion (58) from the second raw material powder (54) adjacent to the first workpiece layer portion (52) and the second workpiece layer portion (56).

公开(公告)号：US20220055115A1

公开(公告)日：2022-02-24

申请号：US17432740

申请日：2020-03-02

Applicant: SLM Solutions Group AG

Inventor： Birk Hoppe ,  Kevin Kondziella ,  Toni Adam Krol ,  Christopher Stengel ,  Meike Husmann ,  Naveed Iqbal ,  Maximilian Schniedenham ,  Dieter Schwarze ,  Jan Wilkes ,  Bärbel Kratz

IPC: B22F12/80 ,  B22F12/30 ,  B22F12/55 ,  B22F12/70 ,  B22F12/41 ,  B22F12/10 ,  B22F12/00 ,  B22F12/90 ,  B33Y30/00 ,  B33Y40/00

Abstract: We describe a process chamber, an apparatus, a modular system, a method, a safety device, a positioning system and a system for producing a three-dimensional workpiece and/or for use thereof when producing a three-dimensional workpiece. The process chamber for producing the three-dimensional workpiece via an additive layer construction method comprises: a material supply unit comprising a substantially ring-like shaped end portion at a first side of the process chamber, wherein the material supply unit is adapted to supply, via the end portion, material to a carrier on which the material is to be processed by the process chamber for producing the three-dimensional workpiece, and an opening at the first side of the process chamber for processing, by the process chamber, the material supplied on the carrier in order to produce the three-dimensional workpiece, wherein the substantially ring-like shaped end portion surrounds the opening.

公开(公告)号：US11027494B2

公开(公告)日：2021-06-08

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: B29C64/20 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/393 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/386 ,  B29C64/371 ,  G05B19/4097 ,  G01B11/24 ,  B33Y50/00 ,  B22F10/20 ,  G06T7/73 ,  G06T7/13 ,  B29C64/268 ,  G05B19/40 ,  B22F7/02 ,  B22F7/00 ,  B22F10/30 ,  B33Y40/00

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：US20230330750A1

公开(公告)日：2023-10-19

申请号：US18029483

申请日：2021-09-13

Applicant: SLM SOLUTIONS GROUP AG

Inventor： Christopher Stengel ,  Maximilian Schniedenharn ,  Toni Adam Krol

IPC: B22F10/366 ,  B22F12/90 ,  B22F12/45 ,  B22F12/41

CPC classification number: B22F10/366 ,  B22F12/90 ,  B22F12/45 ,  B22F12/41 ,  B22F2203/03 ,  B22F2201/10

Abstract: In a method of operating an irradiation system (10) for irradiating layers of a raw material powder with laser radiation in order to produce a three-dimensional work piece (110) at least a section of a raw material powder layer (11) applied onto a carrier (102) is selectively irradiated with linearly polarized laser radiation. An orientation of a plane of polarization of the linearly polarized laser radiation is controlled in dependence on an orientation of a plane of incidence of the linearly polarized laser radiation on the raw material.

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：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：US20200023585A1

公开(公告)日：2020-01-23

申请号：US16486969

申请日：2018-02-09

Applicant: SLM SOLUTIONS GROUP AG

Inventor： Andreas Wiesner ,  Toni Adam Krol ,  Jan Wilkes ,  Birk Hoppe ,  Christiane Thiel ,  Christopher Stengel

IPC: B29C64/386 ,  B33Y30/00 ,  B33Y50/00 ,  B29C64/25 ,  B28B1/00 ,  B23K26/03 ,  B23K26/12 ,  B23K26/342 ,  B23K31/12

Abstract: The invention relates to a device (10) for the layered production of a three-dimensional workpiece, comprising: a build space (30) in which the workpiece is manufacturable by selectively solidification of raw material powder layers; an irradiating system (20) which is adapted to selectively solidify the raw material powder layers in the build space (30) by emitting a processing beam; at least one calibrating structure (36); a sensor arrangement (25) which is adapted to detect an irradiation of the calibrating structure (36) by the irradiating system (20); and a control unit (26) which is adapted to calibrate the irradiating system (20) on the basis of detection information of the sensor arrangement, wherein the calibrating structure (36) is arranged outside the build space (30). The invention also relates to a method for calibrating an irradiating system of a device for the layer-by-layer manufacture of a three-dimensional workpiece.