公开(公告)号：US11618217B2

公开(公告)日：2023-04-04

申请号：US17105378

申请日：2020-11-25

申请人： Hewlett-Packard Development Company, L.P.

发明人： Fernando Juan ,  Alejandro Manuel De Pena ,  Esteve Comas ,  Edward Dale Davis

IPC分类号： B29C64/25 ,  B33Y40/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165 ,  B29K105/00

摘要： According to examples, a build module may include a housing, a build material chamber, and a build chamber. The build material chamber may be positioned beneath the build chamber in the housing and may include a moveable support member, in which a build material distributor is to supply successive layers of build material onto the moveable support member from the build material chamber. The build module may be removably insertable into a build receiver of an additive manufacturing system to allow the additive manufacturing system to solidify a portion of the successive layers received onto the moveable support member during the solidification process of the build material. The moveable support member may separate the build material chamber from the build chamber to block build material from the above the build material chamber from being received into the build material chamber during a solidification process of the build material.

公开(公告)号：US11254068B2

公开(公告)日：2022-02-22

申请号：US15518229

申请日：2014-10-29

申请人： Hewlett-Packard Development Company, L.P.

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

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

摘要： 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

申请人： Hewlett-Packard Development Company, L.P.

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

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

摘要： 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

申请人： Hewlett-Packard Development Company, L.P.

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

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

CPC分类号： 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

摘要： 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.