公开(公告)号：US12044618B2

公开(公告)日：2024-07-23

申请号：US17079652

申请日：2020-10-26

申请人： RENISHAW PLC

发明人： Ian Robert Thomas Ashton ,  Stephan Kloss ,  Christopher Sutcliffe ,  Ben Ian Ferrar

IPC分类号： B22F3/105 ,  B22F10/00 ,  B22F10/28 ,  B22F10/31 ,  B22F12/44 ,  B22F12/49 ,  B22F12/90 ,  B23K26/02 ,  B29C64/153 ,  B29C64/268 ,  G01J3/28 ,  G01N21/27 ,  G01N21/71 ,  B22F10/36 ,  B22F10/366 ,  B22F10/368 ,  B22F12/41 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC分类号： G01N21/274 ,  B22F10/00 ,  B22F10/28 ,  B22F12/44 ,  B22F12/49 ,  B22F12/90 ,  B29C64/153 ,  B29C64/268 ,  G01J3/28 ,  G01N21/718 ,  B22F10/31 ,  B22F10/36 ,  B22F10/366 ,  B22F10/368 ,  B22F12/41 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01N2201/06113 ,  Y02P10/25

摘要： 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：US11123924B2

公开(公告)日：2021-09-21

申请号：US16483263

申请日：2018-02-20

申请人： RENISHAW PLC

发明人： David Roberts McMurtry ,  Christopher Sutcliffe ,  Robin Geoffrey Weston ,  Paul Campton ,  David John Whitton ,  David Beeby

IPC分类号： B29C64/241 ,  B29C64/321 ,  B29C64/245 ,  B29C64/268 ,  B29C64/205 ,  B29C64/371 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/153 ,  B22F10/10 ,  B22F10/70 ,  B22F12/33 ,  B22F12/80 ,  B22F12/30 ,  B22F10/28 ,  B22F12/82 ,  B22F12/37 ,  B22F10/73 ,  B22F12/88

摘要： 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：US10974184B2

公开(公告)日：2021-04-13

申请号：US14306289

申请日：2014-06-17

申请人： RENISHAW PLC

发明人： Simon Peter Scott ,  Christopher Sutcliffe

IPC分类号： B01D46/00 ,  B33Y40/00 ,  B33Y30/00 ,  B01D46/24 ,  B33Y99/00 ,  B29C64/364 ,  B22F3/11 ,  B22F1/00 ,  B22F9/30 ,  B29C67/00 ,  B22F3/105 ,  B33Y10/00

摘要： A filter assembly for an additive manufacturing apparatus has a housing defining a gas inlet and a gas outlet. A filter element is located within the housing between the gas inlet and the gas outlet. The assembly includes valves that can be actuated to seal the gas inlet and the gas outlet. Additionally the assembly has a fluid inlet for allowing ingress of a fluid into the housing. The assembly allows a filter element, which may contain volatile particles, to be changed safely. By sealing the gas inlet and outlet and flooding the housing with a suitable fluid, volatile particles captured by the filter can be neutralised.

公开(公告)号：US10926327B2

公开(公告)日：2021-02-23

申请号：US15318115

申请日：2015-06-11

申请人： RENISHAW PLC

发明人： Christopher Sutcliffe ,  Ceri Brown

IPC分类号： B29C67/00 ,  B22F3/105 ,  B33Y30/00 ,  B29C64/268 ,  B29C64/371

摘要： 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：US20240337592A1

公开(公告)日：2024-10-10

申请号：US18750156

申请日：2024-06-21

申请人： Renishaw PLC

发明人： Ian Robert Thomas ASHTON ,  Stephan Kloss ,  Christopher Sutcliffe ,  Ben Ian Ferrar

IPC分类号： G01N21/27 ,  B22F10/00 ,  B22F10/28 ,  B22F10/31 ,  B22F10/36 ,  B22F10/366 ,  B22F10/368 ,  B22F12/41 ,  B22F12/44 ,  B22F12/49 ,  B22F12/90 ,  B29C64/153 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01J3/28 ,  G01N21/71

CPC分类号： G01N21/274 ,  B22F10/00 ,  B22F10/28 ,  B22F12/44 ,  B22F12/49 ,  B22F12/90 ,  B29C64/153 ,  B29C64/268 ,  G01J3/28 ,  G01N21/718 ,  B22F10/31 ,  B22F10/36 ,  B22F10/366 ,  B22F10/368 ,  B22F12/41 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01N2201/06113 ,  Y02P10/25

摘要： 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：US10850326B2

公开(公告)日：2020-12-01

申请号：US15024304

申请日：2014-09-23

申请人： RENISHAW PLC

发明人： Ian Robert Thomas Ashton ,  Stephan Kloss ,  Christopher Sutcliffe ,  Ben Ian Ferrar

IPC分类号： B22F3/105 ,  G01N21/71 ,  G01N21/27 ,  G01J3/28 ,  B29C64/153 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

摘要： 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.