公开(公告)号：US20230311420A1

公开(公告)日：2023-10-05

申请号：US18018816

申请日：2020-07-30

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

Inventor： Ferran ESQUIUS BERENGUERAS ,  Esteve COMAS CESPEDES ,  Jordi BAUTISTA BALLESTER ,  David RAMIREZ MUELA ,  Xavier SOLER PEDEMONTE

IPC: B29C64/393 ,  B29C64/165 ,  B29C64/291 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/291 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29K2075/00

Abstract: A 3D printer is disclosed herein. The 3D printer comprises a build material distributor to generate layers of a build material having a right limit temperature of the build material crystallization curve higher than a left limit temperature of the build material fusing curve. The 3D printer also comprises an agent distributor to selectively deposit an energy absorbent fusing agent to a layer of build material; an energy source to emit energy at a set of wavelengths comprised in the range of 430 to 1200 nm; and a controller. The controller is to receive print job data of a 3D object to be generated; control the build material distributor to generate a layer of build material; control the agent distributor to selectively deposit the fusing agent based on the print job data; and to control the energy source to emit energy to the layer of build material to cause build material on which the fusing agent was deposited to melt, coalesce and then solidify upon cooling.

公开(公告)号：US20210078255A1

公开(公告)日：2021-03-18

申请号：US17050316

申请日：2018-10-29

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

Inventor： Ferran ESQUIUS BERENGUERAS ,  Esteve COMAS CESPEDES ,  Ismael FERNANDEZ AYMERICH ,  Arthur H. BARNES

IPC: B29C64/277 ,  B29C64/153 ,  B33Y30/00 ,  B22F3/105

Abstract: A reflector assembly for an additive manufacturing apparatus comprises a first reflector comprising a first reflector section having a first reflecting surface and a second reflector comprising a second reflector section having a second reflecting surface. The first reflector section is for reflecting radiation from a first radiating element located, in use, proximate to the first reflecting surface, and the second reflector section is for reflecting radiation from a second radiating element located, in use, proximate to the second reflecting surface. The first reflector section and the second reflector section are each formed of a ceramic material.

公开(公告)号：US20240181713A1

公开(公告)日：2024-06-06

申请号：US18285794

申请日：2021-04-14

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

Inventor： Albert RIPOLL OLIVERAS ,  Jordi BAUTISTA BALLESTER ,  Ferran ESQUIUS BERENGUERAS ,  Arnau CODINA SABORIT

IPC: B29C64/393 ,  B29C64/165 ,  B29C64/171 ,  B29K75/00 ,  B29K77/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/171 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00 ,  B29K2075/00 ,  B29K2077/00

Abstract: A method includes processing circuitry acquiring a first indication of an extent of fusion of build material forming a first object generated by an additive manufacturing apparatus. A second indication of an extent of fusion of build material forming a second object generated by the additive manufacturing apparatus in a second additive manufacturing operation may also be acquired, wherein in the first operation, the fusing energy modules are controlled to provide energy at a first energy level and in the second operation, the fusing energy modules are controlled to provide energy at a second energy level, different from the first energy level. An energy contribution of each of the fusing energy modules to a zone of the additive manufacturing apparatus in which the first and second objects were generated may be determined and based on the indications of extent of fusion and the contributions of the fusing energy modules.

公开(公告)号：US20240123685A1

公开(公告)日：2024-04-18

申请号：US18286514

申请日：2022-01-21

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

Inventor： Arnau CODINA SABORIT ,  Daniel Pablo ROSENBLATT ,  Ferran ESQUIUS BERENGUERAS

IPC: B29C64/291 ,  B22F12/40 ,  B28B1/00 ,  B33Y30/00

CPC classification number: B29C64/291 ,  B22F12/40 ,  B28B1/001 ,  B33Y30/00 ,  B29C64/165

Abstract: According to an example, a heating device comprises a plurality of light emitting arrays to emit a respective irradiance associated with a calibration profile and a power source electrically connected to the plurality of light emitting arrays, wherein the irradiances emitted by the plurality of light emitting arrays result in a substantially spatially uniform irradiance towards a target surface.