Patent ID: 11905410
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Other special machines (Mechanical engineering)
Classification: CPC C  B  Y | IPC B  C

Claim 11:
12. A method of making a 3D printed article, comprising:
iteratively applying individual build material layers of a polymeric powder, the polymeric powder including high aspect ratio composite particles and low aspect ratio filler particles, the high aspect ratio composite particles including glass fibers coated with an encapsulating polymer in an amount from about 5 wt % to about 80 wt % based on a total weight of the polymeric powder and having an aspect ratio from about 7:1 to about 30:1, the low aspect ratio filler particles in an amount from about 20 wt % to about 95 wt % based on a total weight of the polymeric powder and having an aspect ratio from 1:1 to less than 7:1; and
based on a 3D object model, selectively jetting a fusible fluid onto individual build material layers, where the fusible fluid comprises an energy absorber; and
exposing the polymeric powder to electromagnetic energy to selectively fuse the high aspect ratio composite particles and low aspect ratio filler particles in contact with the energy absorber at individual build material layers to form a 3D printed article.