公开(公告)号：US20180275634A1

公开(公告)日：2018-09-27

申请号：US15761247

申请日：2016-09-29

Applicant: RENISHAW PLC

Inventor： Geoffrey MCFARLAND ,  Ramkumar REVANUR ,  Mark BUCKINGHAM

IPC: G05B19/4099 ,  B33Y50/02 ,  B29C64/393

CPC classification number: G05B19/4099 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  G05B2219/32189 ,  G05B2219/32203 ,  G05B2219/35134 ,  G05B2219/49007 ,  G05B2219/49016 ,  G05B2219/49029 ,  G05B2219/49036 ,  Y02P90/22

Abstract: This invention concerns apparatus for generating instructions for machines of a manufacturing chain used to manufacture a workpiece. The apparatus comprising a processor arranged to receive a model based definition (MBD) of a workpiece including geometric dimensions and tolerances; receive inputs setting an additive build design for building the workpiece based upon the geometric dimensions; generate additive instructions for an additive manufacturing machine of the manufacturing chain based upon the additive build design; determine a prospective intermediate workpiece product expected from an additive build in accordance with the additive build design; determine differences between the prospective intermediate workpiece product and the model based definition of the workpiece; and generate further instructions for at least one further machine of the manufacturing chain based upon the differences.

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.

公开(公告)号：US20210146447A1

公开(公告)日：2021-05-20

申请号：US17159552

申请日：2021-01-27

Applicant: RENISHAW PLC

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

IPC: B22F10/30 ,  B33Y50/02 ,  G05B19/4093 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/393 ,  B29C64/245 ,  B29C64/268

Abstract: This invention concerns a method of monitoring an additive manufacturing apparatus. The method comprises 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.

公开(公告)号：US20180036943A1

公开(公告)日：2018-02-08

申请号：US15555455

申请日：2016-03-29

Applicant: RENISHAW PLC

Inventor： Ceri BROWN ,  Nicholas H H JONES ,  David G J EWING ,  Geoffrey MCFARLAND

IPC: B29C64/153 ,  G02B26/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/20 ,  B33Y10/00

Abstract: An additive manufacturing apparatus including a scanner for directing a laser beam on to layers of flowable material to selectively solidify the material to form an object in a layer-by-layer manner. The scanner includes an optical component operable under the control of a first actuator to reflect the laser beam over a first range of angles in a first dimension and the or a further optical component operable under the control of a second actuator to reflect the laser beam over a second range of angles in the first dimension, wherein the second actuator provides a faster dynamic response but a smaller range of movement of the laser beam than the first actuator.

公开(公告)号：US20170304895A1

公开(公告)日：2017-10-26

申请号：US15514149

申请日：2015-09-30

Applicant: RENISHAW PLC

Inventor： Adrian PORCH ,  Geoffrey MCFARLAND

IPC: B22F3/105 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B33Y10/00

CPC classification number: B22F3/1055 ,  B22F2003/1054 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B23K26/342 ,  B29C64/153 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2203/11 ,  B22F2202/11

Abstract: An additive manufacturing apparatus including a build chamber containing a support for supporting a material bed, a layering device for forming layers of the material bed, a laser or electron beam source for generating a laser or electron beam, a device for steering the laser or electron beam to solidify selected areas of each layer to form a part and a microwave or radio wave source controllable to generate a microwave or radio wave field to differentially heat the material bed based upon the selected areas.

公开(公告)号：US20160193696A1

公开(公告)日：2016-07-07

申请号：US14910399

申请日：2014-08-21

Applicant: RENISHAW PLC

Inventor： Geoffrey MCFARLAND ,  Ben Ian FERRAR

IPC: B23K26/342 ,  B23K26/32 ,  B23K26/00 ,  B22F3/00

Abstract: An additive manufacturing machine for building objects by layerwise melting of powder material includes a build chamber containing a build platform, a powder dispenser depositing the powder material in layers across the platform, a high energy beam selectively melting powder material in each layer and a control device controlling a property of the powder material given by build particles in the powder material below a specified upper particle size limit. A method includes controlling a property of the powder material given by build particles below a specified upper particle size limit. A method carries out successive builds, wherein in-between the builds, particles are added to or removed from the powder material to effect a property of the powder material given by build particles below a specified upper particle size limit. Further, adding or removing particles ensure that a sufficient proportion of micro build particles are present in the powder.

Abstract translation: 用于通过粉末材料的分层熔化来建造物体的添加剂制造机包括：包含构建平台的构建室，将粉末材料沉积在跨平台的层中的粉末分配器，每层中选择性地熔化粉末材料的高能量束和控制装置 控制由粉末材料中的构造颗粒给出的粉末材料的特性低于规定的上限粒径。 一种方法包括控制由构建颗粒给出的粉末材料的特性低于规定的上限粒度限度。 一种方法进行连续的构建，其中在构建之间，将颗粒添加到粉末材料中或从粉末材料中移除，以实现由构建颗粒给出的低于特定的上限粒度限度的粉末材料的性质。 此外，添加或除去颗粒确保粉末中存在足够比例的微结构颗粒。

公开(公告)号：US20230042539A1

公开(公告)日：2023-02-09

申请号：US17970779

申请日：2022-10-21

Applicant: RENISHAW PLC

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

IPC: B22F10/30 ,  B33Y50/02 ,  G05B19/4093 ,  B22F10/00 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/393 ,  B29C64/245 ,  B29C64/268

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.

公开(公告)号：US20220379552A1

公开(公告)日：2022-12-01

申请号：US17885839

申请日：2022-08-11

Applicant: RENISHAW PLC

Inventor： Ceri BROWN ,  Nicholas H H JONES ,  David G J Ewing ,  Geoffrey MCFARLAND

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  G02B26/10 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/264 ,  B29C64/268 ,  G02B26/00 ,  B33Y40/00

Abstract: An additive manufacturing apparatus including a scanner for directing a laser beam on to layers of flowable material to selectively solidify the material to form an object in a layer-by-layer manner. The scanner includes an optical component operable under the control of a first actuator to reflect the laser beam over a first range of angles in a first dimension and the or a further optical component operable under the control of a second actuator to reflect the laser beam over a second range of angles in the first dimension, wherein the second actuator provides a faster dynamic response but a smaller range of movement of the laser beam than the first actuator.

公开(公告)号：US20210229215A1

公开(公告)日：2021-07-29

申请号：US17050630

申请日：2019-05-15

Applicant: RENISHAW PLC

Inventor： Nicholas John WESTON ,  Geoffrey MCFARLAND

IPC: B23K26/082 ,  B29C64/135 ,  B23K26/042

Abstract: A laser beam scanner including a laser beams positioning optic, a plurality of optical fibres for delivering a plurality of laser beams and a fibre termination optic aligned to direct the laser beams from output ends of the plurality of optical fibres to the laser beams positioning optic. The laser beams positioning optic is movable relative to the fibre termination optic to scan the laser beams across a working surface.

公开(公告)号：US20160136730A1

公开(公告)日：2016-05-19

申请号：US14897152

申请日：2014-06-11

Applicant: RENISHAW PLC

Inventor： David Roberts MCMURTRY ,  Geoffrey MCFARLAND ,  Nicholas John WESTON ,  Ben Ian FERRAR

IPC: B22F3/105 ,  G02B26/10 ,  G02B26/02

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2003/1059 ,  B29C64/153 ,  B29C64/386 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  G02B26/02 ,  G02B26/101 ,  Y02P10/295

Abstract: An additive manufacturing apparatus for building objects by layerwise consolidation of material. The apparatus includes a build chamber containing a working area, a plurality of high energy beams for consolidating material deposited in the working area in layers and an optical unit for controlling transmission of the high energy beams onto material in the working area. The optical unit includes a plurality of independently controllable optical elements each optical element for controlling transmission of at least one of the high energy beams onto the material in the working area, the optical unit movable in the build chamber.

Abstract translation: 一种用于通过层状固结材料建造物体的添加剂制造装置。 该装置包括一个包含工作区域的构建室，用于将沉积在工作区域中的材料固结的多个高能束，以及用于控制高能量束传送到工作区域中的材料的光学单元。 光学单元包括多个可独立控制的光学元件，每个光学元件用于控制至少一个高能量光束传输到工作区域中的材料上，光学单元可在构建室中移动。