公开(公告)号：US20210178466A1

公开(公告)日：2021-06-17

申请号：US16077183

申请日：2017-07-19

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

Inventor： Thomas ANTHONY ,  Kristopher ERICKSON ,  Howard S. TOM

IPC: B22F1/00 ,  B22F3/10 ,  B22F10/10

Abstract: Methods of forming 3D printed metal objects and compositions for 3D printing are described herein. In an example, a method of forming a 3D printed metal object can comprise: (A): a build material comprising at least one metal being deposited; (B): a fusing agent being selectively jetted on the build material, the fusing agent comprising: (i) at least one hydrated metal salt having a dehydration temperature of from about 100° C. to about 250° C., and (ii) a carrier liquid comprising at least one surfactant and water; (C): the build material and the selectively jetted fusing agent being heated to a temperature of from about 100° C. to about 250° C. to: (a) remove the carrier liquid, (b) dehydrate the hydrated metal salt, and (c) bind the build material and the selectively jetted fusing agent; and (D): (A), (B), and (C) being repeated at least one time to form the 3D printed metal object.

公开(公告)号：US20230264415A1

公开(公告)日：2023-08-24

申请号：US18141830

申请日：2023-05-01

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Kristopher ERICKSON ,  Jarrid WITTKOPF ,  Lihua ZHAO

IPC: B29C64/188 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/264 ,  B29C64/209 ,  B29C64/393 ,  B29C64/165

CPC classification number: B29C64/188 ,  B29C64/165 ,  B29C64/209 ,  B29C64/264 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29L2031/34

Abstract: Some examples include an additive manufacturing system including a processor and a memory to store instructions. The instructions cause the processor to generate print data from received data related to a three-dimensional build object. The generated print data includes defined print data to dispensing a first agent at a build area of a build material layer, defined print data to selectively dispensing a second agent at a component receiving area within the build area of the build material layer, the second agent to locally reduce a viscosity of the build material at the component receiving area to a viscous state, and defined print data to position a component within the component receiving area at a time of the component receiving area being in a viscous state.