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公开(公告)号:US20230067362A1
公开(公告)日:2023-03-02
申请号:US17799719
申请日:2021-03-15
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Lihua ZHAO , Agnieszka Maria BRECZEWSKA JAWORSKA , Aja HARTMAN , Adekunle OLUBUMMO , Olivier Maurice Marcel BLANCHOT , Isabelle SANTARELLA ROUGEAUX , Pierre Nicolas Roger PILUSO , Jérôme DELMAS
IPC: B29C64/30 , B33Y10/00 , B33Y40/20 , B29C64/165
Abstract: The present disclosure relates to a method of manufacturing a 3D printed object. The method comprises selectively applying a fusing agent onto powder bed material; and exposing at least part of the powder bed material to radiation to fuse at least part of the powder bed material to form a layer of the 3D printed object. The fusing agent and/or a detailing agent is selectively applied to the powder bed material in a predetermined arrangement to form a porous region in the 3D printed object. The 3D printed object is then treated with a modifying agent, such that the modifying agent at least partially penetrates the porous region of the 3D printed object.