公开(公告)号：US20210039167A1

公开(公告)日：2021-02-11

申请号：US17079652

申请日：2020-10-26

Applicant: RENISHAW PLC

Inventor： Ian Robert Thomas ASHTON ,  Stephan KLOSS ,  Christopher SUTCLIFFE ,  Ben Ian FERRAR

IPC: B22F3/105 ,  G01N21/71 ,  G01N21/27 ,  G01J3/28 ,  B29C64/153 ,  B29C64/268

Abstract: This invention concerns a laser solidification apparatus for building objects by layerwise solidification of powder material. The apparatus including a build chamber containing a build platform, a device for depositing layers of powder material on to the build platform, an optical unit for directing a laser beam to selectively solidify areas of each powder layer and a spectrometer for detecting characteristic radiation emitted by plasma formed during solidification of the powder by the laser beam. The invention also relates to a spectrometer for detecting characteristic radiation generated by interaction of the metal with the or a further laser beam. The spectra recorded using the spectrometer may be used for feedback control during the solidification process.

公开(公告)号：US20170120330A1

公开(公告)日：2017-05-04

申请号：US15318115

申请日：2015-06-11

Applicant: RENISHAW PLC

Inventor： Christopher SUTCLIFFE ,  Ceri BROWN

IPC: B22F3/105

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2201/50 ,  B29C64/20 ,  B33Y30/00 ,  Y02P10/295

Abstract: An additive manufacturing apparatus including a build chamber in which an object is built and a flow device. The flow device comprises a body having a Coand{hacek over (a)} surface and a passageway connectable to a pressurised gas source. The passageway has an opening located adjacent to the Coand{hacek over (a)} surface to, in use, direct a jet of gas over the Coand{hacek over (a)} surface. A space adjacent the Coand{hacek over (a)} surface is in fluid communication with the build chamber such that gas drawn into and/or propelled from the space causes gas flow through the build chamber.

公开(公告)号：US20200016838A1

公开(公告)日：2020-01-16

申请号：US16483263

申请日：2018-02-20

Applicant: RENISHAW PLC

Inventor： David Roberts MCMURTRY ,  Christopher SUTCLIFFE ,  Robin Geoffrey WESTON ,  Paul CAMPTON ,  David John WHITTON ,  David BEEBY

IPC: B29C64/241 ,  B29C64/245 ,  B29C64/205 ,  B29C64/268 ,  B29C64/371 ,  B29C64/321

Abstract: A powder bed fusion apparatus for building an object in a layer-by-layer manner includes a build platform movable within a build sleeve to define a build volume, a layer formation device for forming layers of powder across the build volume in a working plane and an irradiation device for irradiating powder in the working plane to selectively fuse the powder. The powder bed fusion apparatus further includes a mechanical manipulator arranged to engage with the object and/or a build substrate, to which the object is attached, to tilt the object in a raised position above the working plane such that powder is freed from the object and deposited at a location above the working plane and/or into the build volume.

公开(公告)号：US20160318257A1

公开(公告)日：2016-11-03

申请号：US15105976

申请日：2014-12-22

Applicant: RENISHAW PLC

Inventor： Ian Thomas BROOKS ,  Christopher SUTCLIFFE

IPC: B29C67/00

CPC classification number: B29C64/386 ,  B22F3/1055 ,  B22F5/04 ,  B22F2003/1056 ,  B22F2998/10 ,  B23P6/007 ,  B29C64/153 ,  B29C64/40 ,  B29C73/00 ,  B29C73/24 ,  B29C73/34 ,  B29C2035/0838 ,  B29L2009/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  F01D5/005 ,  F01D25/285 ,  Y02P10/295 ,  B22F2003/247

Abstract: A method and apparatus for manufacturing or repairing a part. The method includes building a fixture for retaining the part using an additive manufacturing apparatus, wherein material is consolidated using an energy beam, the fixture built on a build plate retained in a set position within the additive manufacturing apparatus, mounting the part to the fixture and causing the additive manufacturing apparatus to consolidate material onto the part when the build plate, with the fixture and part attached thereto, is retained substantially in the set position.

Abstract translation: 一种用于制造或修理零件的方法和装置。 该方法包括使用添加剂制造装置来构建用于保持零件的夹具，其中使用能量束固定材料，固定在保持在添加剂制造装置内的设定位置的构建板上的夹具，将零件安装到夹具上， 使得附加制造装置将固定件和附接到其上的构件板基本上保持在设定位置时将材料固结在部件上。

公开(公告)号：US20180043614A1

公开(公告)日：2018-02-15

申请号：US15538547

申请日：2015-12-23

Applicant: RENISHAW PLC

Inventor： Benjamin John GREENFIELD ,  Jonathan MUNDAY ,  Christopher SUTCLIFFE

IPC: B29C64/153 ,  B29C64/205 ,  B22F3/105

CPC classification number: B29C64/153 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B29C64/205 ,  B33Y30/00 ,  Y02P10/295

Abstract: An additive manufacturing apparatus builds a part by selectively consolidating flowable material in a layer-by-layer building process. The apparatus has an inert gas vessel having a build chamber a layering device for depositing layers of material in the build chamber; a scanner for delivering an energy beam to selected areas of each layer to consolidate flowable material of the layer, a gas flow circuit for generating an inert gas flow through the build chamber and a cooling device arranged to cool an internal surface of the gas flow circuit to generate cooled inert gas. The gas flow circuit is arranged such that the cooled inert gas can be delivered into the build chamber.

公开(公告)号：US20160236279A1

公开(公告)日：2016-08-18

申请号：US15024304

申请日：2014-09-23

Applicant: RENISHAW PLC

Inventor： Ian Robert Thomas ASHTON ,  Stephan KLOSS ,  Christopher SUTCLIFFE ,  Ben Ian FERRAR

IPC: B22F3/105 ,  G01N21/71

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B29C64/153 ,  B29C64/20 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01J3/28 ,  G01N21/274 ,  G01N21/718 ,  G01N2201/06113 ,  Y02P10/295

Abstract: This invention concerns a laser solidification apparatus for building objects by layerwise solidification of powder material. The apparatus including a build chamber containing a build platform, a device for depositing layers of powder material on to the build platform, an optical unit for directing a laser beam to selectively solidify areas of each powder layer and a spectrometer for detecting characteristic radiation emitted by plasma formed during solidification of the powder by the laser beam. The invention also relates to a spectrometer for detecting characteristic radiation generated by interaction of the metal with the or a further laser beam. The spectra recorded using the spectrometer may be used for feedback control during the solidification process.

Abstract translation: 本发明涉及通过粉末材料的分层固化来建造物体的激光凝固装置。 该装置包括一个包含构建平台的构建室，用于在构建平台上沉积粉末材料层的装置，用于引导激光束选择性地凝固每个粉末层的区域的光学单元和用于检测由 通过激光束在粉末固化期间形成的等离子体。 本发明还涉及一种用于检测由金属与另一激光束的相互作用产生的特征辐射的光谱仪。 使用光谱仪记录的光谱可用于凝固过程中的反馈控制。