公开(公告)号：US20180281286A1

公开(公告)日：2018-10-04

申请号：US15568125

申请日：2015-08-20

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

Inventor： Xavier Vilajosana ,  Pol Fornos ,  David Ramirez Muela ,  Sergio Puigardeu Aramendia ,  Alejandro Manuel De Pena

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

Abstract: Temperatures of a layer of build material on a support member may be detected. Each of the temperatures corresponding to a respective area of the layer. Based on data representing the three-dimensional object, a subset of the temperatures may be filtered from spatial temperature distribution data comprising the temperatures. A degree of heat or energy applied to the layer may be controlled based on the filtered spatial temperature distribution data.

公开(公告)号：US20170252974A1

公开(公告)日：2017-09-07

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: B29C67/00 ,  B29C67/24 ,  B33Y30/00

CPC classification number: B29C67/247 ,  B22F1/0062 ,  B22F3/008 ,  B22F3/1055 ,  B29C64/153 ,  B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  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：US20160332375A1

公开(公告)日：2016-11-17

申请号：US15111605

申请日：2014-01-31

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

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

IPC: B29C67/00 ,  B33Y50/02 ,  B33Y30/00

CPC classification number: B29C67/0081 ,  B29C64/00 ,  B29C64/165 ,  B29C64/386 ,  B29C64/40 ,  B29K2105/251 ,  B33Y30/00 ,  B33Y50/02

Abstract: An apparatus for generating a three-dimensional object is provided. The apparatus may include a housing having a surface defining a build receiver to receive differently-sized build modules or to receive a plurality of build modules. The build modules may each include a build chamber to receive a layer of build material from a build material distributor. The apparatus may include an agent distributor to selectively deliver a coalescing agent onto portions of the layer of build material to be received from the build material distributor such that when energy is applied to the layer the portions of the layer coalesce and solidify to form a slice of the three-dimensional object.

Abstract translation: 提供一种用于产生三维物体的装置。 该装置可以包括壳体，其具有限定构建接收器的表面以接收不同尺寸的构建模块或接收多个构建模块。 构建模块可以各自包括构建室，以从构建材料分配器接收构建材料层。 该设备可以包括代理分配器，以选择性地将聚结剂递送到要从构建材料分配器接收的构建材料层的部分上，使得当能量施加到层时，层的部分聚结并固化以形成切片 的三维物体。

公开(公告)号：US20210331252A1

公开(公告)日：2021-10-28

申请号：US16606084

申请日：2018-07-31

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

Inventor： Seongsik Chang ,  Krzysztof Nauka ,  Alejandro Manuel De Pena ,  Lihua Zhao

IPC: B22F12/43 ,  B22F10/28 ,  B22F10/36 ,  B28B1/00 ,  B28B17/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/06

Abstract: According to examples, an apparatus may include an array of micro-mirrors, each of the micro-mirrors being individually controllable to selectively be in a first position or a second position, and a light source to direct a pulse of light onto the array of micro-mirrors with sufficient intensity to cause micron-sized particles on a powder bed upon which the light is directed from the array of micro-mirrors to at least partially melt. Each of the micro-mirrors that is in the first position may reflect light onto a respective area on a layer of micron-sized particles to at least partially melt the micron-sized particles in the respective area and each of the micro-mirrors that is in the second position may reflect light away from the powder bed on which the micron-sized particles are supported.

公开(公告)号：US11059231B2

公开(公告)日：2021-07-13

申请号：US16870132

申请日：2020-05-08

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

Inventor： Alejandro Manuel De Pena ,  Pavel Kornilovich ,  David H. Donovan

IPC: B29C64/393 ,  B33Y30/00 ,  B29C64/40 ,  B29C64/165 ,  B29C64/386 ,  B29C64/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29K105/00

Abstract: A three-dimensional object may be generated. Coalescing agent may be selectively delivered on a portion of a first layer of build material on a support member or previous layer. Energy may be applied to the first layer to cause the portion of the first layer to coalesce and solidify. A second layer of the build material may be provided on the first layer. While the second layer does not have coalescing agent delivered thereon, energy may be applied to the second layer such that energy may propagate through the second layer to the first layer to cause the portion of the first layer to coalesce and further solidify.

公开(公告)号：US20210053287A1

公开(公告)日：2021-02-25

申请号：US17091334

申请日：2020-11-06

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

Inventor： Alejandro Manuel De Pena ,  Fernando Juan ,  Pau Martin

IPC: B29C64/255 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/321 ,  B22F3/00 ,  B22F3/105

Abstract: An integrated build and material supply system for an additive manufacturing apparatus comprises a building compartment adapted to accommodate an object to be formed by means of additive manufacturing and a storage compartment adapted to store a build material for forming said object. A volume of said building compartment and a volume of said storage compartment are variable in size, and said system is adapted to re-allocate at least a portion of a volume previously allocated to said storage compartment to said building compartment.

公开(公告)号：US10730282B2

公开(公告)日：2020-08-04

申请号：US16094187

申请日：2016-05-12

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

Inventor： Alejandro Manuel De Pena ,  Sergio Puigardeu Aramendia ,  David Ramirez Muela

IPC: B33Y10/00 ,  B29C64/165 ,  B33Y50/02 ,  B29C64/386 ,  B29C64/393 ,  B29C41/46 ,  B29C41/52 ,  B33Y30/00

Abstract: In an example, a method includes forming, at an additive manufacturing apparatus, a first layer of build material to be processed in the generation of an object. A print agent is selectively applied onto the first layer based on a first print instruction associated with the first layer. Energy is applied to the first layer to cause fusion in a region of the first layer. The method further comprises: measuring the temperature of the first layer at a plurality of locations to form a measured temperature distribution profile; comparing the measured temperature distribution profile against a predicted temperature distribution profile to generate a difference; and correcting a temperature distribution profile of a subsequent layer of the build material following fusion of the subsequent layer based on the difference by modifying a second print instruction associated with the subsequent layer.

公开(公告)号：US10730237B2

公开(公告)日：2020-08-04

申请号：US15789830

申请日：2017-10-20

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

Inventor： David Chanclon ,  Alejandro Manuel De Pena ,  Esteve Comas

IPC: B29C67/00 ,  B29C64/20 ,  B29C64/40 ,  B29C64/00 ,  B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/386 ,  B29C64/205

Abstract: According to one example, there is provided a system for generating a three-dimensional object. The system comprises a carriage to move bi-directionally along a first axis relative to a support platform. The carriage is to receive, or have installed thereon, a plurality of modules each to perform an operation from a set of operations to generate a layer of a three-dimensional object. The system further comprises a controller to cause relative movement between the carriage and the support platform along the first axis, and to control, during the relative movement, operation of the modules to perform the set of operations in a predefined order.

公开(公告)号：US10543672B2

公开(公告)日：2020-01-28

申请号：US15306480

申请日：2014-09-02

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

Inventor： Hou T. Ng ,  Alejandro Manuel De Pena

IPC: B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: In one example, a non-transitory processor readable medium with instructions thereon that when executed cause an additive manufacturing machine to inhibit build material from coalescing in an area of a first layer of build material where a second slice of an object will overhang a first slice of the object formed in the first layer of build material.

公开(公告)号：US20190176389A1

公开(公告)日：2019-06-13

申请号：US16075545

申请日：2016-05-12

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

Inventor： Juan Manuel Valero Navazo ,  Esteve Comas ,  Alejandro Manuel De Pena

IPC: B29C64/153 ,  B29C64/393

Abstract: A method of forming a three-dimensional object includes detecting, with a thermographic camera, a temperature of a control point within at least one zone of the build material bed, and adjusting a power level supplied to at least one of the lamps of the array of lamps if the detected temperature of the control point of the at least one zone of the build material bed is not equal to a set temperature.