公开(公告)号：US20190054729A1

公开(公告)日：2019-02-21

申请号：US16079296

申请日：2016-10-17

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

Inventor： Guy ADAMS ,  Steven J. SIMSKE ,  Luis GARCIA GARCIA ,  Alejandro Manuel DE PENA ,  Pol FORNOS

IPC: B33Y10/00 ,  B29C64/135 ,  B29C64/268 ,  B33Y70/00 ,  G06F17/50

Abstract: Methods of generating a three-dimensional object with an additive manufacturing system are described. The method includes depositing a build material within a working area, thereby providing a build material layer, selectively depositing a fusing agent onto a portion of the build material layer, applying energy from a bulk-fusion energy source to the working area, thereby fusing at least a portion of the build material where the fusing agent is deposited, and applying energy from a focused energy source to one or more localized areas of the working area.

公开(公告)号：US20210197479A1

公开(公告)日：2021-07-01

申请号：US16075677

申请日：2017-03-29

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

Inventor： Pol FORNOS ,  Luis GARCIA ,  Jun ZENG

IPC: B29C64/386 ,  B33Y50/00 ,  G05B19/042

Abstract: In an example, a method includes receiving, at a processor, object model data representing at least a portion of an object to be generated by an additive manufacturing apparatus by fusing build material. Using a processor and from the object model data, a property diffusion model for the object in object generation may be determined. Using a processor and based on the property diffusion model, a manufacturing boundary object shell around the object and encompassing an external volume may be determined. The shell may have a variable thickness determined so as to include build material for which, in generation of the object, the property modelled in the property diffusion model has a value which is predicted to conform to a predetermined parameter.

公开(公告)号：US20200324489A1

公开(公告)日：2020-10-15

申请号：US16759921

申请日：2017-12-06

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

Inventor： Pol FORNOS ,  David RAMIREZ MUELA ,  Sergio PUIGARDEU ARAMENDIA

IPC: B29C64/40 ,  B29C64/393 ,  B33Y40/20 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/153

Abstract: In an example, a method includes in an additive manufacturing process, generating a first object and generating an ancillary object on top of the first object to reduce a thermal gradient of the first object during cooling.