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.