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：US20240337592A1

公开(公告)日：2024-10-10

申请号：US18750156

申请日：2024-06-21

Applicant: Renishaw PLC

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

IPC: 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 classification number: 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

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：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。