公开(公告)号：US20210252785A1

公开(公告)日：2021-08-19

申请号：US16973158

申请日：2018-11-22

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

Inventor： Luis GARCIA GARCIA ,  Marina FERRAN FARRES ,  Alejandro Manuel DE PENA HEMPEL

IPC: B29C64/295 ,  B29C64/153 ,  G06T7/80 ,  B29C64/393 ,  G06T7/70

Abstract: An example device includes a camera to aim towards a build platform to receive material to be fused to form an article. The camera is to capture thermal images including a correction image captured during formation of the article at the build platform. The correction image is to be referenced to adjust a parameter of the formation of the article at the build platform. The example device further includes a controller connected to the camera. The controller is to control the camera to capture a calibration image with a heater associated with the build platform turned on. The controller is further to use the calibration image to compute a calibration to apply to the correction image.

公开(公告)号：US20190168458A1

公开(公告)日：2019-06-06

申请号：US16092731

申请日：2016-05-12

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

Inventor： Sergio PUIGARDEU ARAMENDIA ,  David RAMIREZ MUELA ,  Luis GARCIA GARCIA

IPC: B29C64/393

Abstract: According to an example, a three-dimensional (3D) printer may include a delivery device to selectively deliver liquid droplets onto a layer of build materials and a controller to determine a preselected area on the layer of build materials at which the delivery device is to deliver liquid droplets, to determine a distribution at which gaps are to be formed in the delivery of the liquid droplets within the preselected area, and to control the delivery device to deliver the liquid droplets across the preselected area while forming the gaps at the determined distribution, in which the gaps are to form heat sinks in the build materials that are to prevent heat spikes from occurring across the build materials in the preselected area.

公开(公告)号：US20220347752A1

公开(公告)日：2022-11-03

申请号：US17244816

申请日：2021-04-29

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

Inventor： Rhys MANSELL ,  Mohammad JOWKAR ,  Luis GARCIA GARCIA

IPC: B22F10/73 ,  B22F10/14 ,  B22F12/30 ,  B22F12/53 ,  B22F1/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y70/00 ,  B03C1/30

Abstract: A printer is described that comprises a print chamber and an electromagnet moveable within the print chamber. The electromagnet has an on state and an off state. The electromagnet is to collect magnetic powder within the print chamber when in the on state, and to deposit magnetic powder when in the off state.

公开(公告)号：US20190054729A1

公开(公告)日：2019-02-21

申请号：US16079296

申请日：2016-10-17

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

Inventor： Guy ADAMS ,  Steven J. SIMSKE ,  Luis GARCIA GARCIA ,  Alejandro Manuel DE PENA ,  Pol FORNOS

IPC: B33Y10/00 ,  B29C64/135 ,  B29C64/268 ,  B33Y70/00 ,  G06F17/50

Abstract: Methods of generating a three-dimensional object with an additive manufacturing system are described. The method includes depositing a build material within a working area, thereby providing a build material layer, selectively depositing a fusing agent onto a portion of the build material layer, applying energy from a bulk-fusion energy source to the working area, thereby fusing at least a portion of the build material where the fusing agent is deposited, and applying energy from a focused energy source to one or more localized areas of the working area.

公开(公告)号：US20230147553A1

公开(公告)日：2023-05-11

申请号：US17794933

申请日：2020-04-30

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

Inventor： Esteve COMAS CESPEDES ,  Michel Georges ENCRENAZ ,  Sergi CULUBRET CORTADA ,  Davinia FONT CALAFELL ,  Luis GARCIA GARCIA

IPC: B22F12/70 ,  B22F10/16 ,  B22F10/322 ,  B22F12/13 ,  B22F12/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/393 ,  B29C64/295 ,  B29C64/364

CPC classification number: B22F12/70 ,  B22F10/16 ,  B22F10/322 ,  B22F12/13 ,  B22F12/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/393 ,  B29C64/295 ,  B29C64/364

Abstract: According to one example, there is provided an apparatus to process volume of particulate build material. The apparatus comprises a sealable chamber to house a volume of particulate build material, a gas supply to supply the chamber with a predetermined gas, a gas circulator to circulate the gas within the volume of build material, a temperature controller to heat the circulated gas to a predetermined heating temperature to heat the volume of build material to the heating temperature and then to cool the circulated gas to a predetermined cooling temperature to cool the volume of build material to the cooling temperature.

公开(公告)号：US20150352871A1

公开(公告)日：2015-12-10

申请号：US14763508

申请日：2013-01-29

Applicant: Sergio PUIGARDEU ,  Angel MARTINEZ BARAMBIO ,  Luis GARCIA GARCIA ,  Isabel M. BORREL BAYONA ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Sergio PUIGARDEU ARAMENDIA ,  Angel MARTINEZ BARAMBIO ,  Luis GARCIA GARCIA ,  M. Isabel BORREL BAYONA

IPC: B41J29/38

CPC classification number: H04N1/58 ,  G06K15/105 ,  G06K15/1857 ,  H04N1/233 ,  H04N1/4092

Abstract: A printer and a method of processing an image (1) to be printed with a printer which has a printing unit arranged to produce a printout from image-representing print data of the image, and a processing unit for processing image-representing input data of the image so as to generate the image-representing print data. The processing unit is arranged for separating the image into a line detail sub-image (20) containing edge and line details, and an area detail sub-image (25) containing area details, performing a first printing mode processing pipeline on the line detail sub-image and performing a second, different printing mode processing pipeline on the area detail sub-image, and generating multi-layer print mask data, wherein at least one print mask data layer is usable to print the line detail sub-image in at least one line detail print pass, and the remaining, i.e. at least one of the print mask data layers being used to print the area detail sub-image in at least one area detail print pass to produce an image (50) which has optimized image quality.

Abstract translation: 一种打印机和一种处理要打印的图像（1）的方法，所述打印机具有布置成从图像表示图像的打印数据的图像生成打印单元的打印机，以及处理单元，用于处理图像表示输入数据的图像表示 该图像以产生图像表示打印数据。 处理单元被布置为将图像分离成包含边缘和线细节的线细节子图像（20），以及包含区域细节的区域细节子图像（25），对线细节执行第一印刷模式处理流水线 并且在区域细节子图像上执行第二不同的打印模式处理流水线，并且生成多层打印掩模数据，其中至少一个打印掩码数据层可用于将线细节子图像打印在 至少一行细节打印通行，剩余的，即至少一个打印掩码数据层用于在至少一个区域细节打印通过中打印区域细节子图像，以产生具有优化图像的图像（50） 质量。