公开(公告)号：WO2022211776A1

公开(公告)日：2022-10-06

申请号：PCT/US2021/024585

申请日：2021-03-29

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

Inventor： HARVEY, Natalie Laura ,  MARIN CAMARA, Ariadna ,  GASSO PUCHAL, Xavier ,  MESTRES ROSAS, Arnau

IPC: B29C64/379 ,  B29C64/165 ,  B33Y40/20 ,  B33Y10/00 ,  B33Y70/00

Abstract: The present disclosure relates to a method of manufacturing a 3D printed object. The method comprises treating an outer surface of a 3D printed object with a dye, condensing solvent vapour on the treated outer surface; and dissolving a portion of the treated outer surface in the condensed solvent to reduce the surface roughness of the 3D printed object.

公开(公告)号：WO2022211777A1

公开(公告)日：2022-10-06

申请号：PCT/US2021/024589

申请日：2021-03-29

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

Inventor： HARVEY, Natalie Laura ,  MARIN CAMARA, Ariadna ,  GASSO PUCHAL, Xavier ,  MESTRES ROSAS, Arnau

IPC: B29C64/165 ,  B29C64/379 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y40/20

Abstract: The present disclosure relates to a method of manufacturing a 3D printed object. The method comprises condensing solvent vapour on an outer surface of the 3D printed object. The 3D printed object comprises polymer and radiation absorber. The outer surface of the 3D printed object a) comprises pores that absorb the solvent and b) has a surface roughness, Ra, of greater than 5 µm. The method also comprises dissolving a portion of the 3D printed object to tailor the surface roughness, Ra, of the 3D printed object to a value of from 0.5 to 4 µm.

公开(公告)号：WO2022211775A1

公开(公告)日：2022-10-06

申请号：PCT/US2021/024574

申请日：2021-03-29

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

Inventor： HARVEY, Natalie Laura ,  GASSO PUCHAL, Xavier ,  MESTRES ROSAS, Arnau ,  MARIN CAMARA, Ariadna

IPC: B29C64/379 ,  B33Y40/20 ,  C08J7/02

Abstract: The present disclosure relates a method of chemical polishing a 3D printed object. The method comprises treating a 3D printed object with solvent to reduce the surface roughness of the 3D printed object, and controlling the Youngs modulus of the 3D printed object within a target value by selectively removing at least part of the solvent from the 3D printed object.