Patent ID: 11958982
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C | IPC B  C

Claim 8:
9. A method of making a 3D printed article, comprising:
iteratively applying individual layers of powder bed material to a powder bed support, the powder bed material comprising electroactive polymer particles including an electroactive polymer selected from the group consisting of polyvinyl fluoride, copolymer of polyvinylidene fluoride and trifluoroethylene, copolymer of polyvinlidene fluoride and 1,1,2,2-chlorotrifluoroethylene, copolymer of polyvinylidene fluoride and hexafluoropropylene, copolymer of polyvinylidene fluoride and tetrafluoropropylene, copolymer of polyvinylidene fluoride and trifluoropropylene, and a combination thereof;
based on a 3D object model, selectively jetting a fusing agent onto the individual layers of the powder bed material, the fusing agent comprising a radiation absorber;
based on the 3D object model, selectively jetting a dopant onto the individual layers of the powder bed material to adjust electrical properties of the powder bed material, the dopant being i) included in the fusing agent or ii) included in a separate doping agent; and
exposing the powder bed to electromagnetic energy to selectively fuse the electroactive polymer particles in contact with the radiation absorber at the individual layers of the powder bed material to form a 3D printed article.