公开(公告)号：US11254068B2

公开(公告)日：2022-02-22

申请号：US15518229

申请日：2014-10-29

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

Inventor： Hou T. Ng ,  Sivapackia Ganapathiappan ,  Alejandro Manuel De Pena ,  Edward Dale Davis ,  Ali Emamjomeh

IPC: B29C67/24 ,  B29C64/165 ,  B22F1/00 ,  B29C64/153 ,  B22F10/10 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y50/02

Abstract: In an example of a three-dimensional (3D) printing method, a build material (consisting of an inorganic particle and a polymer attached thereto) is applied. The polymer is a continuous coating having a thickness from about 3 nm to about 1500 nm, or nano-beads having an average diameter from about 3 nm to about 1500 nm. The build material is heated to a temperature from about 5° C. to about 50° C. below the polymer's melting point. A coalescent dispersion (including a coalescent agent and inorganic nanoparticles) is selectively applied on a portion of the build material, and the applied build material and coalescent dispersion are exposed to electromagnetic radiation. The coalescent dispersion absorbs the electromagnetic radiation and heats up the portion of the build material in contact therewith to fuse the portion of the build material in contact with the coalescent dispersion and to form a layer of a 3D object.

公开(公告)号：US10647059B2

公开(公告)日：2020-05-12

申请号：US14787692

申请日：2014-01-31

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

Inventor： Fernando Juan Jover ,  Alejandro Manuel de Pena ,  Esteve Comas Cespedes ,  Edward Dale Davis

IPC: B29C64/386 ,  B29C64/35 ,  B29C64/165 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29K105/00

Abstract: According to one example, there is provided apparatus for generating a three-dimensional object. The apparatus comprises a build material distributor movable bi-directionally in a first axis to deposit successive layers of a build material on a support, and an agent distributor movable bi-directionally in a second axis different to the first axis to deliver an agent onto selected portions of successive layers of build material.

公开(公告)号：US20170274594A1

公开(公告)日：2017-09-28

申请号：US15510122

申请日：2014-09-30

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

Inventor： Hou T. Ng ,  Ali Emamjomeh ,  Alejandro Manuel De Pena ,  Edward Dale Davis

IPC: B29C67/00 ,  B33Y30/00 ,  B33Y80/00 ,  B33Y50/02 ,  C09D7/12 ,  B33Y70/00 ,  B33Y40/00 ,  B33Y10/00 ,  C09D201/00

CPC classification number: C09D7/61 ,  B29C64/165 ,  B29C64/35 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  C08K3/36 ,  C08L75/04 ,  C09D201/00

Abstract: Provided in one example herein is a three-dimensional printing method, comprising: (A) forming a layer comprising a comprising particles comprising a polymer and cavities between the particles, wherein the particles have an average diameter of between about 5 μm and about 250 ρm; (B) disposing a liquid suspension over at least a portion of the layer such that the liquid suspension infiltrates into the cavities, wherein the liquid suspension comprises a radiation-absorbing coalescent agent and nanoparticles having an average diameter of less than or equal to about 500 nm; (C) forming an object slice by exposing the infiltrated layer to a radiant energy, wherein the object slice comprises a polymeric matrix comprising the polymeric particles, at least some of which are fused to one another, and the nanoparticles within the polymeric matrix; and (D) repeating (A) to (C) to form the three-dimensional object comprising multiple object slices bound depth-wise to one another.

公开(公告)号：US20160151973A1

公开(公告)日：2016-06-02

申请号：US14787692

申请日：2014-01-31

Applicant: Fernando JUAN JOVER ,  Alejandro Manuel DE PENA ,  Esteve COMAS CESPEDES ,  Davis EDWARD DALE ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Fernando Juan Jover ,  Alejandro Manuel de Pena ,  Esteve Comas Cespedes ,  Edward Dale Davis

IPC: B29C67/00

CPC classification number: B29C64/386 ,  B29C64/165 ,  B29C64/35 ,  B29C64/40 ,  B29K2105/0058 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: According to one example, there is provided apparatus for generating a three-dimensional object. The apparatus comprises a build material distributor movable bi-directionally in a first axis to deposit successive layers of a build material on a support, and an agent distributor movable bi-directionally in a second axis different to the first axis to deliver an agent onto selected portions of successive layers of build material.

Abstract translation: 根据一个示例，提供了用于生成三维物体的装置。 该装置包括构建材料分配器，其可在第一轴线上双向移动以将构建材料的连续层沉积在支撑件上，以及代理分配器可在不同于第一轴线的第二轴线上双向移动以将试剂递送到所选择的 建筑材料的连续层的部分。