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11 条记录 (耗时 0.016 秒)

    Additive manufacturing apparatus and method
    1.
    发明授权
    Additive manufacturing apparatus and method 有权

    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.

    Selective laser solidification apparatus and method
    5.
    发明授权
    Selective laser solidification apparatus and method 有权

    公开(公告)号：US10335901B2

    公开(公告)日：2019-07-02

    申请号：US14896161

    申请日：2014-06-10

    申请人： RENISHAW PLC

    发明人： Ben Ian Ferrar ,  Ceri Brown

    IPC分类号： B23K26/342 ,  B23K26/06 ,  B23K26/082 ,  B23K26/144 ,  B22F3/105 ,  B29C64/153 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

    摘要： A selective laser solidification apparatus including; a powder bed onto which powder layers can be deposited, at least one laser module for generating a plurality of laser beams for solidifying the powder material deposited onto the powder bed, a laser scanner for individually steering each laser beam to solidify separate areas in each powder layer, and a processing unit. A scanning zone for each laser beam is defined by the locations on the powder bed to which the laser beam can be steered by the laser scanner. The laser scanner is arranged such that each scanning zone is less than the total area of powder bed and at least two of the scanning zones overlap. The processing unit is arranged for selecting, for at least one powder layers, which laser beam to use to scan an area of the powder layer located within a region wherein the scanning zones overlap.

    Selective laser solidification apparatus and method
    7.
    发明授权
    Selective laser solidification apparatus and method 有权

    公开(公告)号：US11478856B2

    公开(公告)日：2022-10-25

    申请号：US16409911

    申请日：2019-05-13

    申请人： RENISHAW PLC

    发明人： Ben Ian Ferrar ,  Ceri Brown

    IPC分类号： B22F12/00 ,  B29C64/153 ,  B23K26/082 ,  B23K26/144 ,  B23K26/342 ,  B23K26/06 ,  B22F10/10 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

    摘要： A selective laser solidification apparatus including; a powder bed onto which powder layers can be deposited, at least one laser module for generating a plurality of laser beams for solidifying the powder material deposited onto the powder bed, a laser scanner for individually steering each laser beam to solidify separate areas in each powder layer, and a processing unit. A scanning zone for each laser beam is defined by the locations on the powder bed to which the laser beam can be steered by the laser scanner. The laser scanner is arranged such that each scanning zone is less than the total area of powder bed and at least two of the scanning zones overlap. The processing unit is arranged for selecting, for at least one powder layers, which laser beam to use to scan an area of the powder layer located within a region wherein the seaming zones overlap.