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    AN ADDITIVE MANUFACTURING METHOD AND SYSTEM
    2.
    发明申请
    AN ADDITIVE MANUFACTURING METHOD AND SYSTEM 审中-公开

    公开(公告)号：US20190030823A1

    公开(公告)日：2019-01-31

    申请号：US16075301

    申请日：2017-03-02

    Applicant: RENISHAW PLC

    Inventor： David R MCMURTRY ,  Geoffrey MCFARLAND ,  Ramkumar REVANUR

    IPC: B29C64/393 ,  B29C64/153

    Abstract: A method builds a workpiece using an additive manufacturing process, wherein the workpiece is built up by consolidating material in a layer-by-layer manner. The method includes receiving an initial geometric model defining surface geometry of the workpiece, determining workpiece slices to be consolidated as layers of the workpiece during the additive manufacturing process from the initial geometric model, determining adjusted positions of the workpiece slices adjusted from initial positions of the workpiece slices as determined from the initial geometric model, the determination of the adjusted positions based upon warping of the workpiece expected to occur during or after the additive manufacturing process, and building the workpiece using the additive manufacturing process, wherein the workpiece slices are formed in the adjusted positions.

    METHOD AND APPARATUS FOR GENERATING GEOMETRIC DATA FOR USE IN ADDITIVE MANUFACTURING
    3.
    发明申请
    METHOD AND APPARATUS FOR GENERATING GEOMETRIC DATA FOR USE IN ADDITIVE MANUFACTURING 审中-公开
    用于产生几何数据的方法和装置用于添加制造

    公开(公告)号：US20160370791A1

    公开(公告)日：2016-12-22

    申请号：US14901624

    申请日：2014-06-25

    Applicant: RENISHAW PLC

    Inventor： Ramkumar REVANUR ,  Rupesh BADOLE ,  Sanjay DINDE ,  Mayur LANKESHWAR

    IPC: G05B19/4099 ,  B33Y50/02

    CPC classification number: G05B19/4099 ,  B33Y50/02 ,  G05B2219/34247 ,  G05B2219/35134 ,  G05B2219/49007 ,  G05B2219/49014

    Abstract: An apparatus and methods for generating geometric data for use in an additive manufacturing process. The apparatus includes a processing unit. The processing unit may be arranged for receiving data defining surface geometry of a plurality of objects to be built together in an additive manufacturing process, providing a user interface that allows a user to define a location of each object within a common build volume and carrying out a slicing operation on at least one of the objects located in the common build volume independently from another one of objects located in the common build volume. The slicing operation determines sections of the at least one object to be built in the additive manufacturing process. In one embodiment, the objects are defined in a hierarchical data structure. Supports for supporting the objects during the build may be defined with reference to a 2-dimensional support cross-section.

    Abstract translation: 一种用于生成用于添加剂制造过程的几何数据的装置和方法。 该装置包括处理单元。 处理单元可以被布置为用于接收定义要在添加制造过程中一起构建的多个对象的表面几何形状的数据，提供允许用户在共同构建体积内定义每个对象的位置并执行 位于公共构建卷中的至少一个对象中的切片操作独立于位于公共构建卷中的另一个对象。 切片操作确定在添加剂制造过程中要构建的至少一个对象的部分。 在一个实施例中，对象以分层数据结构定义。 可以参考二维支撑横截面来定义在构建期间支撑物体的支撑。

    AN ADDITIVE MANUFACTURING METHOD AND APPARATUS
    4.
    发明申请
    AN ADDITIVE MANUFACTURING METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20190022946A1

    公开(公告)日：2019-01-24

    申请号：US15767475

    申请日：2016-11-14

    Applicant: RENISHAW PLC

    Inventor： Nicholas Henry Hannaford JONES ,  Ceri BROWN ,  Ramkumar REVANUR ,  Geoffrey MCFARLAND

    IPC: B29C64/393 ,  B29C64/153 ,  B29C64/268 ,  B29C64/245

    Abstract: A method of monitoring an additive manufacturing apparatus. The method includes receiving one or more sensor signals from the additive manufacturing apparatus during a build of a workpiece, comparing the one or more sensor signals to a corresponding acceptable process variation of a plurality of acceptable process variations and generating a log based upon the comparisons. Each acceptable process variation of the plurality of acceptable process variations is associated with at least one state of progression of the build of the workpiece and the corresponding acceptable process variation is the acceptable process variation associated with the state of progression of the build when the one or more sensor signals are generated.

    ADDITIVE MANUFACTURING APPARATUS AND METHODS
    5.
    发明申请
    ADDITIVE MANUFACTURING APPARATUS AND METHODS 审中-公开

    公开(公告)号：US20180244034A1

    公开(公告)日：2018-08-30

    申请号：US15528701

    申请日：2015-11-17

    Applicant: RENISHAW PLC

    Inventor： Christopher John SUTCLIFFE ,  Jason JOANNOU ,  Jack DUNKLEY ,  Ramkumar REVANUR

    IPC: B33Y30/00 ,  B22F3/105 ,  B33Y10/00 ,  B29C67/00 ,  B01D46/44

    CPC classification number: B33Y30/00 ,  B01D46/0058 ,  B01D46/0086 ,  B01D46/0091 ,  B01D46/0093 ,  B01D46/44 ,  B01D46/446 ,  B22F3/105 ,  B22F3/1055 ,  B22F2003/1059 ,  B29C64/153 ,  B29C64/20 ,  B29C67/00 ,  B33Y10/00 ,  Y02P10/24 ,  Y02P10/295

    Abstract: This invention concerns an additive manufacturing apparatus for building a part by selectively consolidating flowable material in a layer-by-layer process comprising a build chamber (101) for building the part, a module (105, 106) for providing a focussed energy beam for consolidating flowable material in the build chamber, a gas flow circuit for generating a gas flow through the build chamber (101). At least one filter assembly (200, 201) may be arranged in the gas flow circuit, the or each filter assembly (200, 201) having associated therewith a valve (V-4, V-8) operable to seal the gas circuit upstream from the filter assembly (200, 201) and a valve (V-5, V-9) operable to seal the gas flow circuit downstream of the filter assembly (200, 201), the arrangement allowing a filter element (E-5, E-7) of the filter assembly (200, 201) to be changed whilst maintaining a controlled atmosphere in the build chamber (101). The apparatus may further comprise a purging device (210) configured to purge air from the or each filter assembly (200, 201) when the valves (V-4, V-5; V-8, V-9) associated with that filter assembly (200, 201) have sealed the filter assembly (200, 201) from the gas flow. Alternatively or additionally, a controller (131) may be arranged to control the valves (V-4, V-5; V-8, V-9) associated with the or each filter assembly (200, 201) such that the filter assemblies (200, 201) are closed off to gas flow from the build chamber (101) during a period in which the inert gas atmosphere in the build chamber (101) is compromised as a result of opening the door to the build chamber (101). The apparatus may comprise a pair of filter assemblies (200, 201) arranged in parallel within the gas flow circuit, the arrangement allowing a filter element (E-5, E-7) of the each filter assembly (200, 201) to be changed during a build by allowing the filter element (E-5, E-7) of one filter assembly (200, 201) to be changed whilst the filter element (E-5, E-7) of the other filter assembly (200, 201) is connected to filter particulates from the gas flow. A monitoring device (I-3, I-5) may be provided for detecting a property associated with the gas flow and a controller (131) arranged to control the valves to switch the filter assembly (200, 201) connected in line with the gas flow based upon signals from the monitoring device (I-3, I-5).

    METHOD AND APPARATUS FOR GENERATING GEOMETRIC DATA FOR USE IN ADDITIVE MANUFACTURING
    7.
    发明申请
    METHOD AND APPARATUS FOR GENERATING GEOMETRIC DATA FOR USE IN ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：US20190121322A1

    公开(公告)日：2019-04-25

    申请号：US16220938

    申请日：2018-12-14

    Applicant: RENISHAW PLC

    Inventor： Ramkumar REVANUR ,  Rupesh BADOLE ,  Sanjay DINDE ,  Mayur LANKESHWAR

    IPC: G05B19/4099 ,  B33Y50/02

    Abstract: An apparatus and methods for generating geometric data for use in an additive manufacturing process. The apparatus includes a processing unit. The processing unit may be arranged for receiving data defining surface geometry of a plurality of objects to be built together in an additive manufacturing process, providing a user interface that allows a user to define a location of each object within a common build volume and carrying out a slicing operation on at least one of the objects located in the common build volume independently from another one of objects located in the common build volume. The slicing operation determines sections of the at least one object to be built in the additive manufacturing process. In one embodiment, the objects are defined in a hierarchical data structure. Supports for supporting the objects during the build may be defined with reference to a 2-dimensional support cross-section.

    MACHINE CONTROL FOR ADDITIVE MANUFACTURING PROCESS AND APPARATUS
    8.
    发明申请
    MACHINE CONTROL FOR ADDITIVE MANUFACTURING PROCESS AND APPARATUS 审中-公开

    公开(公告)号：US20180370144A1

    公开(公告)日：2018-12-27

    申请号：US15775133

    申请日：2016-11-14

    Applicant: RENISHAW PLC

    Inventor： Ramkumar REVANUR ,  Ceri BROWN

    IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/20

    Abstract: A method controls an additive manufacturing apparatus, in which an object is built by consolidating material in a layer-by-layer manner. The method includes receiving commands to be executed by the additive manufacturing apparatus to cause the additive manufacturing apparatus to carry out a build of an object, wherein each command includes an identifier identifying a time during the build at which the command is to be executed, and executing each command on the additive manufacturing apparatus in accordance with the time identified by the associated identifier. Further, an apparatus and a data carrier carry out the method.

    ADDITIVE MANUFACTURING METHOD AND SYSTEM
    9.
    发明申请
    ADDITIVE MANUFACTURING METHOD AND SYSTEM 有权

    公开(公告)号：US20230100749A1

    公开(公告)日：2023-03-30

    申请号：US18075505

    申请日：2022-12-06

    Applicant: RENISHAW PLC

    Inventor： David R. MCMURTRY ,  Geoffrey MCFARLAND ,  Ramkumar REVANUR

    IPC: B29C64/393 ,  G06T19/20 ,  B29C64/153

    Abstract: A method builds a workpiece using an additive manufacturing process, wherein the workpiece is built up by consolidating material in a layer-by-layer manner. The method includes receiving an initial geometric model defining surface geometry of the workpiece, determining workpiece slices to be consolidated as layers of the workpiece during the additive manufacturing process from the initial geometric model, determining adjusted positions of the workpiece slices adjusted from initial positions of the workpiece slices as determined from the initial geometric model, the determination of the adjusted positions based upon warping of the workpiece expected to occur during or after the additive manufacturing process, and building the workpiece using the additive manufacturing process, wherein the workpiece slices are formed in the adjusted positions.

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