公开(公告)号：US11383449B2

公开(公告)日：2022-07-12

申请号：US16608329

申请日：2018-03-29

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

Inventor： Mohammad Jowkar ,  Yngvar Rossow Sethne ,  Adrien Chiron ,  Luis Arenas Rivera

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/321 ,  B29C64/343 ,  B29C64/205

Abstract: An example method to determine an excess of build material in 3D printing includes providing an amount of build material, spreading the amount of build material to form a layer of build material on a build platform and to leave any excess build material on an excess zone having visible marks thereon and analyzing the marks on the excess zone to determine an excess of build material at the excess zone.

公开(公告)号：US20220080669A1

公开(公告)日：2022-03-17

申请号：US17418178

申请日：2019-05-31

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

Inventor： Adrien Chiron ,  Daniel Pablo Rosenblatt ,  Macrc Borras Camarasa

IPC: B29C64/393 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Powder-fusing energy source control comprising the generating of printer control instructions to control a powder-fusing energy source based on a spectrophotometry measurement of build powder in a three-dimensional printing system.

公开(公告)号：US20220111594A1

公开(公告)日：2022-04-14

申请号：US17559621

申请日：2021-12-22

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

Inventor： Cristian Ferris ,  Elena Laso Plaza ,  Esteve Comas ,  Pau Martin Vidal ,  Gerard Mosquera ,  Anna Torrent ,  Adrien Chiron

IPC: B29C64/321 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y40/00 ,  B29C64/295 ,  B29C64/386

Abstract: In example implementations, an apparatus includes a storage unit, an auger screw, a housing enclosing the auger screw and at least one heater coupled to the housing. The auger screw receives a build material from the storage unit and delivers the build material to a build platform via movement of the auger screw. The build material is heated by the at least one heater as the build material is being moved by the auger screw.

公开(公告)号：US20190152146A1

公开(公告)日：2019-05-23

申请号：US16096230

申请日：2016-07-22

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

Inventor： Adrien Chiron ,  Esteve Comas ,  Diego Javier Mostaccio

IPC: B29C64/295 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/141 ,  B29C64/321 ,  B33Y40/00

Abstract: According to one example there is provided a method for three-dimensional printing. The method comprises forming a pile of build material on a heatable plate adjacent a spreader, heating the pile of build material by contact with the heatable plate, and spreading the heated pile of build material on a support platform.

公开(公告)号：US11707890B2

公开(公告)日：2023-07-25

申请号：US17559621

申请日：2021-12-22

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

Inventor： Cristian Ferris ,  Elena Laso Plaza ,  Esteve Comas ,  Pau Martin Vidal ,  Gerard Mosquera ,  Anna Torrent ,  Adrien Chiron

IPC: B29C64/321 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y40/00 ,  B33Y40/10 ,  B29C64/295 ,  B29C64/386 ,  B29K105/00

CPC classification number: B29C64/321 ,  B29C64/295 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/10 ,  B33Y50/02 ,  B29K2105/251

Abstract: In example implementations, an apparatus includes a storage unit, an auger screw, a housing enclosing the auger screw and at least one heater coupled to the housing. The auger screw receives a build material from the storage unit and delivers the build material to a build platform via movement of the auger screw. The build material is heated by the at least one heater as the build material is being moved by the auger screw.

公开(公告)号：US11518105B2

公开(公告)日：2022-12-06

申请号：US16089863

申请日：2017-03-29

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

Inventor： Sergio Puigardeu Aramendia ,  Adrien Chiron ,  Daniel Pablo Rosenblatt

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

Abstract: Examples of a method of operating an additive manufacturing system, a three-dimensional (3D) printing system and a non-transitory machine-readable medium are described. In an example, a build material is supplied to a print region of an additive manufacturing system. A temperature distribution, corresponding to a pattern, of at least a surface of the build material is generated. An image of the pattern is captured using a thermal sensor. Image data representative of the image of the pattern is compared with data representative of an expected position of the pattern. On the basis of the comparing, difference data indicative of a difference between a position of the thermal sensor during capture of the image and an expected position of the thermal sensor associated with the expected position of the pattern is generated. Operation of the additive manufacturing system is controlled at least in dependence on the difference data.

公开(公告)号：US20220184879A1

公开(公告)日：2022-06-16

申请号：US17417728

申请日：2019-08-27

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

Inventor： Yuval Eckstein ,  Luis Garcia Garcia ,  Adrien Chiron

IPC: B29C64/112 ,  B29C64/393 ,  B41J2/21 ,  B41J2/045

Abstract: A method for reducing artefacts in printed objects comprises receiving print data to be printed by a printhead arrangement, the printhead arrangement being movable in a print direction and comprising a plurality of printhead dies, wherein printhead dies adjacent to each other comprise an overlap area when viewed in the print direction. The print data to be printed are modified near and/or at the overlap areas between printhead dies of the printhead arrangement to compensate for drop placement.

公开(公告)号：US11235527B2

公开(公告)日：2022-02-01

申请号：US16097265

申请日：2016-05-12

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

Inventor： Cristian Ferris ,  Elena Laso Plaza ,  Esteve Comas ,  Pau Martin Vidal ,  Gerard Mosquera ,  Anna Torrent ,  Adrien Chiron

IPC: B29C64/321 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/295 ,  B29K105/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/386

Abstract: In example implementations, an apparatus includes a storage unit, an auger screw, a housing enclosing the auger screw and at least one heater coupled to the housing. The augers screw receives a build material from the storage unit and delivers the build material to a build platform via movement of the auger screw. The build material is heated by the at least one heater as the build material is being moved by the auger screw.

公开(公告)号：US20220152937A1

公开(公告)日：2022-05-19

申请号：US17418785

申请日：2019-08-05

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

Inventor： Leticia Rubio Castillo ,  Yngvar Rossow Sethne ,  Jordi Raventos Catasus ,  Adrien Chiron

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B28B17/00 ,  B22F10/85

Abstract: A method is disclosed in which print instructions for a 3D print job are received which including a plurality of layers to be printed on a layer-by-layer basis to form a 3D object. The print instructions are executed using at least one nozzle whilst performing a nozzle test in a plurality of layers of the 3D print job. The nozzle test results for each layer of the plurality of layers is compared to stored nozzle data. A current nozzle health status is determined based upon the comparison. A corrective action is triggered if the health status is non-compliant with a pre-determined threshold. An apparatus and a machine-readable storage medium comprising instructions executable by a processor are also disclosed.

公开(公告)号：US20220080666A1

公开(公告)日：2022-03-17

申请号：US17420503

申请日：2019-05-30

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

Inventor： Jordi Bautista Ballester ,  Pablo Dominguez Pastor ,  Adrien Chiron

IPC: B29C64/364 ,  B29C64/165 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20 ,  B33Y50/02

Abstract: A three-dimensional printing system comprises a build unit, a three-dimensional printer and a controller. The build unit comprising a build chamber and a heater. The printer is configured to generate a build volume comprising a three-dimensional object within the build chamber and the heater is configured to heat the build chamber. The controller is configured to control the heater to heat the build chamber for a predetermined time period after the build volume is generated, to allow the object to crystallise.