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公开(公告)号：US11285665B2
公开(公告)日：2022-03-29
申请号：US16717407
申请日：2019-12-17
Applicant: Hewlett-Packard Development Company, L.P.
IPC: B29C64/153 , B29C64/393 , B29C64/205 , B29C64/245 , B29C64/343 , B33Y40/00 , B33Y10/00 , B33Y50/02 , B33Y30/00
Abstract: Apparatus, computer readable medium, or method to determine a layer volume change in a processed layer of powder, and distribute an additional amount of powder in a subsequent layer based on the determined layer volume change.
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公开(公告)号：US20220088883A1
公开(公告)日：2022-03-24
申请号：US17543458
申请日：2021-12-06
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B29C64/393 , B33Y50/02 , B33Y30/00 , B29C64/165 , B28B1/00 , B28B17/00 , B29C64/153 , B29C64/188 , B29C64/295 , G05D23/19 , B33Y10/00 , B22F10/20
Abstract: In an example, a method includes measuring a temperature of a plurality of regions of a layer of build material in an additive manufacturing apparatus to provide initial temperature values. For each of a plurality of regions which comprise build material which is intended to fuse, an average temperature value of a plurality of neighbouring regions may be determined and the initial temperature values may be replaced with the average temperature value. Based on the replacement temperature values, a representative temperature of an area of the layer of build material may be determined and a heat source may be controlled based on the representative temperature.
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公开(公告)号：US20210362243A1
公开(公告)日：2021-11-25
申请号：US16605206
申请日：2018-07-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Sergio Puigardeu Aramendia , Michael G. Monroe , Jason C. Hower
IPC: B22F12/55 , B22F10/14 , B22F10/30 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/165 , B29C64/209 , B29C64/393
Abstract: An example three-dimensional printing method is described, comprising selectively depositing droplets of a liquid agent on a layer of build material, by depositing liquid agent on the layer of build material from a first distance above the layer, for example on a first part of the layer, and depositing liquid agent on the layer of build material from a second distance above the layer, for example on a second part of the layer. An example 3D printer is also described.
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公开(公告)号：US10730242B2
公开(公告)日：2020-08-04
申请号：US15513457
申请日：2014-10-03
Applicant: Hewlett-Packard Development Company, L.P.
IPC: B29C64/393 , B29C35/02 , B33Y30/00 , B33Y50/02 , B29C64/386 , B29C64/165 , B33Y10/00 , B29C64/264 , B29C64/10
Abstract: A method of controlling temperature in an apparatus for generating a three-dimensional object comprises performing a calibration test on a sample of build material that is to be used in generating a three-dimensional object, calibrating at least one temperature point from the calibration test, and using the at least one calibrated temperature point during subsequent temperature control of the apparatus.
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公开(公告)号：US20190308372A1
公开(公告)日：2019-10-10
申请号：US15948438
申请日：2018-04-09
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B29C64/393 , B33Y50/02 , B33Y30/00 , B29C64/165 , B28B1/00 , B28B17/00 , B33Y10/00 , B29C64/153 , B29C64/188 , B29C64/295 , B22F3/105 , G05D23/19
Abstract: In an example, a method includes measuring a temperature of a plurality of regions of a layer of build material in an additive manufacturing apparatus to provide initial temperature values. For each of a plurality of regions which comprise build material which is intended to fuse, an average temperature value of a plurality of neighbouring regions may be determined and the initial temperature values may be replaced with the average temperature value. Based on the replacement temperature values, a representative temperature of an area of the layer of build material may be determined and a heat source may be controlled based on the representative temperature.
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Patent Agency Ranking
公开(公告)号：US10380466B2
公开(公告)日：2019-08-13
申请号：US15243405
申请日：2016-08-22
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Maria Isabel Borrell Bayona , Luis Garcia Garcia , Sergio Puigardeu Aramendia , Angel Martinez Barambio
Abstract: As one example, a printer includes a density calculator to determine a content density of data on page to be printed and a controller. In that example, the controller may perform operations to determine a dry time for a swath of the page to be printed based on the content density and an environmental variable and adjust a parameter for the page to be printed to mitigate a drying time of the page to be printed based on the dry time determined for the swath.
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公开(公告)号：US20180264722A1
公开(公告)日：2018-09-20
申请号：US15542633
申请日：2015-04-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B29C64/165 , B29C64/357 , B29C64/393
CPC classification number: B29C64/165 , B22F3/008 , B22F2003/1056 , B22F2003/1059 , B22F2203/03 , B29C64/141 , B29C64/35 , B29C64/357 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02 , Y02P10/295
Abstract: According to one example, there is provided a method of 3D printing. The method comprises generating, within a volume of build material, a volume of solidified build material, and marking a predetermined portion of unsolidified build material within the build volume with a marking agent.
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公开(公告)号：US20180234558A1
公开(公告)日：2018-08-16
申请号：US15949696
申请日：2018-04-10
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Luis Garcia Garcia , Sergio Puigardeu Aramendia , M. Isabel Borrell Bayona , Angel Martinez Barambio
CPC classification number: H04N1/00087 , G06K15/102 , H04N1/00023 , H04N1/00034 , H04N1/6044
Abstract: According to one example, there is provided a printing system. The printing system comprises a support having a plurality of spaced apertures and a colour sensor moveable to measure light from each aperture. The printing system further comprises a controller to control the colour sensor to measure characteristics of light emitted through each aperture, and to determine, for each aperture, light calibration data.
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公开(公告)号：US20180210943A1
公开(公告)日：2018-07-26
申请号：US15415567
申请日：2017-01-25
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Alex Carruesco Llorens , Sergio Puigardeu Aramendia , Lluis Abello Rosello , Sergio Gonzalez , Alvar Vinacua , Pere Brunet
IPC: G06F17/30 , G05B19/4099 , B33Y10/00 , B33Y50/02 , B33Y30/00
CPC classification number: B33Y30/00 , B33Y10/00 , B33Y50/02 , G05B2219/49008 , G05B2219/49013 , G06T17/00
Abstract: In an example, a method includes receiving, at a processor, data representing a three dimensional object. Using the processor, a modified data representation of the three dimensional object may be determined wherein, in the modified data representation, the three dimensional object is represented in terms of homogenous sub-volumes. Each homogenous sub-volume is homogenous with respect to a predetermined attribute and contains locations which are within a common object boundary distance band of plurality of object boundary distance bands, wherein at least two object boundary distance bands partially overlap.
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公开(公告)号：US20180022028A1
公开(公告)日：2018-01-25
申请号：US15542394
申请日：2015-04-14
Applicant: Pol FORNOS , Sergio PUIGARDEU ARAMENDIA , David RAMIREZ MUELA , Salvador SANCHEZ RIBES , HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B29C64/357 , B29C64/386 , B29C64/307 , B33Y40/00 , B33Y50/00
CPC classification number: B29C64/357 , B22F1/0003 , B22F3/1055 , B22F2003/1056 , B22F2003/1057 , B22F2003/1059 , B22F2999/00 , B29C64/307 , B29C64/35 , B29C64/386 , B33Y40/00 , B33Y50/00 , Y02P10/295 , B22F1/0088
Abstract: According to one example, there is provided a method of determining characteristics of a build material. The method comprises obtaining a first quantity of a first build material, determining, for the first build material, the proportion of non-marked build material and marked build material, determining, based on the determined proportion, a first quantity of the first build material to be combined with a second quantity of a second build material to produce a third quantity of mixed build material having a predetermined proportion of marked build material.
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