公开(公告)号：US20210107216A1

公开(公告)日：2021-04-15

申请号：US16603303

申请日：2018-01-26

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

Inventor： Sterling Chaffins ,  Anthony P. Holden ,  Katrina Donovan ,  Noemie Midrez ,  Garry Hinch

IPC: B29C64/165 ,  B29C64/291 ,  B33Y10/00 ,  B33Y70/00 ,  B22F10/14 ,  C09D11/102 ,  C09D11/101 ,  C09D11/38 ,  C09D11/54

Abstract: In an example of a method for three-dimensional (3D) printing, a build material composition is applied to form a build material layer. The build material composition includes a polymeric or polymeric composite build material, and a precipitating agent. Based on a 3D object model, a fusing agent is selectively applied on at least a portion of the build material composition. The fusing agent includes a radiation absorber, which the precipitating agent precipitates. The build material composition is exposed to radiation to fuse the at least the portion to form a layer of a 3D part.

公开(公告)号：US11642842B2

公开(公告)日：2023-05-09

申请号：US16603303

申请日：2018-01-26

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

Inventor： Sterling Chaffins ,  Anthony P. Holden ,  Katrina Donovan ,  Noemie Midrez ,  Garry Hinch

IPC: B29C64/165 ,  B33Y10/00 ,  B29C64/291 ,  B22F10/14 ,  B33Y70/10 ,  C09D11/101 ,  C09D11/102 ,  C09D11/38 ,  C09D11/54 ,  B22F12/13 ,  B22F12/63

CPC classification number: B29C64/165 ,  B22F10/14 ,  B29C64/291 ,  B33Y10/00 ,  B33Y70/10 ,  C09D11/101 ,  C09D11/102 ,  C09D11/38 ,  C09D11/54 ,  B22F12/13 ,  B22F12/63

Abstract: In an example of a method for three-dimensional (3D) printing, a build material composition is applied to form a build material layer. The build material composition includes a polymeric or polymeric composite build material, and a precipitating agent. Based on a 3D object model, a fusing agent is selectively applied on at least a portion of the build material composition. The fusing agent includes a radiation absorber, which the precipitating agent precipitates. The build material composition is exposed to radiation to fuse the at least the portion to form a layer of a 3D part.