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：US12194685B2

公开(公告)日：2025-01-14

申请号：US17634493

申请日：2019-10-30

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

Inventor： Pablo Dominguez Pastor ,  Daniel Pablo Rosenblatt ,  Alejandro Manuel De Pena Hempel

IPC: B29C64/393 ,  B29C64/171 ,  B33Y50/02 ,  B33Y30/00

Abstract: Example implementations relate to process capability procedures for additive manufacturing machines. One example implementation receives and prints two objects with corresponding process values for a set of process parameters within two build regions of the build volume. Measurements are made of each object comprising print parameters and a dataset comprising data representing the process values associated with the print parameters and data representing the second process values associated with the second print parameters is generated.

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.