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    TREATMENT OF FUSED BUILD MATERIALS
    1.
    发明申请
    TREATMENT OF FUSED BUILD MATERIALS 审中-公开

    公开(公告)号：WO2021061100A1

    公开(公告)日：2021-04-01

    申请号：PCT/US2019/052597

    申请日：2019-09-24

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： FERRIS ROIG, Cristian ,  ALMACELLAS VISA, Julia ,  BORRAS CAMARASA, Marc ,  FONT CALAFELL, Davinia

    IPC: B29C64/165 ,  B33Y10/00 ,  B29C64/393 ,  B33Y50/02

    Abstract: Methods of treating fused build material in an additive manufacturing system are described. The method includes a first treatment process comprising: depositing unfused build material over the fused build material in a working area of the additive manufacturing system, thereby providing a first build material layer; and supplying energy from a first energy source to the first build material layer to heat but substantially not fuse the unfused build material of the first build material layer. The method also includes a second treatment process comprising: depositing unfused build material over the first build material layer in the working area, thereby providing a second build material layer; and supplying energy from a second energy source to the second build material layer to heat but substantially not fuse the unfused build material of the first and second build material layers.

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