公开(公告)号：US10850326B2

公开(公告)日：2020-12-01

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 ,  G01N21/27 ,  G01J3/28 ,  B29C64/153 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

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：US12044618B2

公开(公告)日：2024-07-23

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 ,  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 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.