公开(公告)号：US20180364104A1

公开(公告)日：2018-12-20

申请号：US15747055

申请日：2015-10-27

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

Inventor： Xavier Vilajosana ,  Juan Manuel Valero Navazo ,  Marina Ferran Farres

IPC: G01J5/08 ,  G01J5/52 ,  B29C64/393 ,  B29C64/295

Abstract: Examples of determining the temperature of a print zone in an additive manufacturing system are described. In one case, the additive manufacturing system comprises a print zone, a radiation source, an infra-red sensor and an ambient light sensor. The infra-red sensor is configured to measure the temperature of the print zone, and the ambient light sensor is configured to measure visible electromagnetic radiation. The additive manufacturing system comprises a temperature controller to compensate data from the infra-red sensor for infra-red radiation from the radiation source using data from the ambient light sensor.

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：US20180186079A1

公开(公告)日：2018-07-05

申请号：US15568405

申请日：2015-09-28

Applicant: Xavier VILAJOSANA ,  Sebastia CORTES ,  Yngvar ROSSOW ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Xavier Vilajosana ,  Sebastia Cortes ,  Yngvar Rossow

IPC: B29C64/393 ,  B29C64/165

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method of controlling a heating sub-system in an additive manufacturing system. The method comprising receiving thermal imaging information from a temperature sensing subsystem, receiving additive manufacturing media concentration information from an additive manufacturing media concentration information database, on the basis of the received thermal imaging information and additive manufacturing media concentration information, for each pixel area in the plurality of pixel areas, determining the temperature for each additive manufacturing media agent in the plurality of additive manufacturing media agents which is present in the respective pixel area, and on the basis of the determined temperatures for each pixel area and additive manufacturing media agent, controlling the power to a heating subsystem employed in the given additive manufacturing process.