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    Apparatus for producing a three-dimensional work piece with process temperature control
    11.
    发明授权
    Apparatus for producing a three-dimensional work piece with process temperature control 有权

    公开(公告)号：US10710304B2

    公开(公告)日：2020-07-14

    申请号：US15812353

    申请日：2017-11-14

    Applicant: SLM Solutions Group AG

    Inventor： Andreas Wiesner ,  Christiane Thiel ,  Daniel Brueck ,  Isabell Huebinger

    IPC: B29C64/264 ,  B29C64/153 ,  B29C35/08 ,  B22F3/105 ,  B33Y30/00 ,  B33Y10/00

    Abstract: An apparatus for producing a three-dimensional work piece comprises a process chamber accommodating a carrier for receiving a raw material powder and an irradiation device for selectively irradiating electromagnetic or particle radiation onto the raw material powder applied onto the carrier in order to produce the work piece from said raw material powder by an additive layer construction method, the irradiation device comprising at least one radiation source and at least one optical unit with a plurality of optical elements. A heat transfer arrangement is configured to transfer heat generated by a heat source to the at least one optical unit of the irradiation device. The apparatus further comprises a control unit configured to control the heat transfer arrangement so as to adjust a temperature of the at least one optical unit of the irradiation device.

    Powder application apparatus and method of operating a powder application apparatus
    13.
    发明授权
    Powder application apparatus and method of operating a powder application apparatus 有权

    公开(公告)号：US10293546B2

    公开(公告)日：2019-05-21

    申请号：US16015313

    申请日：2018-06-22

    Applicant: SLM Solutions Group AG

    Inventor： André Hermann ,  Andreas Wiesner ,  Dieter Schwarze

    IPC: B28B13/00 ,  B29C64/153 ,  B22F3/105 ,  B65D83/06 ,  B29C64/165 ,  B29C64/20

    Abstract: A powder application apparatus is provided for use in a device for manufacturing work pieces by exposing powder layers to electromagnetic radiation or particle radiation. The powder application apparatus comprises a first powder storage provided in a first part of the powder application apparatus and configured to receive and store raw material powder. The powder application apparatus further comprises a first powder supply channel provided in a second part of the powder application apparatus and configured to discharge raw material powder from the first powder storage onto a carrier located below the apparatus. A first channel opening/closing element is configured to be moved between a first position to allow the discharge of raw material powder from the first powder storage onto the carrier, and a second position in which the discharge of raw material powder from the first powder storage onto the carrier is presented.

    Powder circuit for use in an apparatus for producing three-dimensional work pieces
    17.
    发明授权
    Powder circuit for use in an apparatus for producing three-dimensional work pieces 有权

    公开(公告)号：US10773304B2

    公开(公告)日：2020-09-15

    申请号：US14948710

    申请日：2015-11-23

    Applicant: SLM Solutions Group AG

    Inventor： Andreas Wiesner ,  Bodo Haack ,  Dieter Schwarze

    IPC: B22F3/105 ,  B29C64/35 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y10/00 ,  B29C64/357 ,  B29C64/153

    Abstract: A powder circuit (36) 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 process chamber (12) accommodating a carrier (16) and a powder application device (14) for applying a raw material powder onto the carrier (16), the process chamber (12) being provided with a powder inlet (30) for supplying raw material powder to the powder application device (14) and a powder outlet (32) for discharging excess raw material powder from the process chamber (12). The powder circuit (36) further comprises a powder circulation line (34) connecting the powder outlet (32) of the process chamber (12) to the powder inlet (30) of the process chamber (12) and a conveying device (38) arranged in the powder circulation line (34) for conveying the raw material powder through the powder circulation line (34). A sensor arrangement (42) is adapted to detect at least one of a parameter characteristic of a powder supply to the conveying device (38) and a parameter characteristic of a powder discharge from the conveying device (38). A control unit (40) adapted to control operation of the conveying device (38) in dependence of at least one of the parameter characteristic of the powder supply to the conveying device (38) and the parameter characteristic of the powder discharge from the conveying device (38).

    APPARATUS FOR PRODUCING A THREE-DIMENSIONAL WORK PIECE WITH IMPROVED GAS FLOW
    18.
    发明申请
    APPARATUS FOR PRODUCING A THREE-DIMENSIONAL WORK PIECE WITH IMPROVED GAS FLOW 审中-公开

    公开(公告)号：US20190262901A1

    公开(公告)日：2019-08-29

    申请号：US16410664

    申请日：2019-05-13

    Applicant: SLM Solutions Group AG

    Inventor： Isabell Huebinger ,  Jan Wilkes ,  Naveed Iqbal ,  Andreas Wiesner ,  Eduard Gieser

    IPC: B22F3/105

    Abstract: An apparatus including a process chamber accommodating a carrier for receiving a raw material powder. An irradiation device of the apparatus is configured to selectively irradiate electromagnetic or particle radiation onto the raw material powder on the carrier in order to produce a work piece by an additive layer construction method, wherein a transmission element allows the transmission of the electromagnetic or particle radiation into the process chamber. The apparatus further includes a gas inlet and a gas outlet for supplying and discharging gas to and from the process chamber which are configured to generate a protective gas stream for protecting the transmission element from being contaminated by impurities present in the process chamber. The gas inlet includes a gas permeable, porous component forming a gas inlet area.

    METHOD AND DEVICE FOR CONTROLLING AN IRRADIATION SYSTEM IN DEPENDENCE ON A WORK PIECE GEOMETRY
    19.
    发明申请
    METHOD AND DEVICE FOR CONTROLLING AN IRRADIATION SYSTEM IN DEPENDENCE ON A WORK PIECE GEOMETRY 审中-公开
    用于控制工作多边形依赖性的辐射系统的方法和装置

    公开(公告)号：US20170021572A1

    公开(公告)日：2017-01-26

    申请号：US15215133

    申请日：2016-07-20

    Applicant: SLM Solutions Group AG

    Inventor： Andreas Wiesner ,  Dieter Schwarze

    IPC: B29C67/00

    CPC classification number: B33Y50/02 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B23K26/0604 ,  B23K26/082 ,  B23K26/342 ,  B29C64/153 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  Y02P10/295

    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.

    Abstract translation: 在用于控制用于制造三维工件的设备的照射系统的方法中，第一和第二照射区域以及布置在第一和第二照射区域之间的重叠区域被限定在 适于接收要被照射系统发射的电磁或粒子辐射照射的原料粉末层的载体。 照射系统的第一照射单元被分配给第一照射区域和重叠区域，并且照射系统的第二照射单元被分配给第二照射区域和重叠区域。 第一照射区域，第二照射区域和重叠区域中的至少一个根据待制造的三维工件的几何形状来定义。

    POWDER CIRCUIT FOR USE IN AN APPARATUS FOR PRODUCING THREE-DIMENSIONAL WORK PIECES
    20.
    发明申请
    POWDER CIRCUIT FOR USE IN AN APPARATUS FOR PRODUCING THREE-DIMENSIONAL WORK PIECES 审中-公开
    用于生产三维工作装置的设备中使用的粉末电路

    公开(公告)号：US20160144431A1

    公开(公告)日：2016-05-26

    申请号：US14948710

    申请日：2015-11-23

    Applicant: SLM Solutions Group AG

    Inventor： Andreas Wiesner ,  Bodo Haack ,  Dieter Schwarze

    IPC: B22F3/105

    Abstract: A powder circuit (36) 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 process chamber (12) accommodating a carrier (16) and a powder application device (14) for applying a raw material powder onto the carrier (16), the process chamber (12) being provided with a powder inlet (30) for supplying raw material powder to the powder application device (14) and a powder outlet (32) for discharging excess raw material powder from the process chamber (12). The powder circuit (36) further comprises a powder circulation line (34) connecting the powder outlet (32) of the process chamber (12) to the powder inlet (30) of the process chamber (12) and a conveying device (38) arranged in the powder circulation line (34) for conveying the raw material powder through the powder circulation line (34). A sensor arrangement (42) is adapted to detect at least one of a parameter characteristic of a powder supply to the conveying device (38) and a parameter characteristic of a powder discharge from the conveying device (38). A control unit (40) adapted to control operation of the conveying device (38) in dependence of at least one of the parameter characteristic of the powder supply to the conveying device (38) and the parameter characteristic of the powder discharge from the conveying device (38).

    Abstract translation: 一种用于通过用电磁或粒子辐射照射原料粉末层来制造三维工件的装置（10）的粉末回路（36）包括：容纳载体（16）和粉末的处理室（12） 所述处理室（12）设置有用于向所述粉末施加装置（14）供给原料粉末的粉末入口（30）和粉末出口（14），所述施加装置（14）用于将原料粉末施加到所述载体 （32），用于从处理室（12）排出多余的原料粉末。 粉末回路（36）还包括将处理室（12）的粉末出口（32）连接到处理室（12）的粉末入口（30）和输送装置（38）的粉末循环管线（34） 布置在粉末循环管线（34）中，用于通过粉末循环管线（34）输送原料粉末。 传感器装置（42）适用于检测输送装置（38）的粉末供给的参数特性和来自输送装置（38）的粉末排放的参数特性中的至少一个。 控制单元（40），其适于根据粉末供应对输送装置（38）的参数特性和输送装置（38）的粉末排放的参数特性中的至少一个来控​​制输送装置（38）的操作 （38）。

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