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公开(公告)号：WO2021025672A1
公开(公告)日：2021-02-11
申请号：PCT/US2019/045014
申请日：2019-08-02
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： FONT CALAFELL, Davinia , BORRAS CAMARASA, Marc , ALMACELLAS VISA, Julia , FERRIS ROIG, Cristian , FORNOS MARTINEZ, Pol , FERNANDEZ AYMERICH, Ismael , VEGA VEGA, Hector
IPC: B29C64/20 , B29C64/10 , B29C64/295 , B33Y30/00
Abstract: A mobile build unit (2) for selectively locating in a build chamber (4) of an additive manufacturing machine (6). The mobile build unit has a build platform (8) to receive build material; and a build unit heater (10) to heat layers of build volume formed on the build platform (8). The build unit heater (10) is movable between a first position in which the build unit heater (10) is stored, and a second position in which the build unit heater (10) is mounted over the build platform (8).
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公开(公告)号：WO2021173109A1
公开(公告)日：2021-09-02
申请号：PCT/US2020/019435
申请日：2020-02-24
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: In an example, a method comprises receiving, at a processor, a digital model representing an object to be produced by additive manufacturing. The method may comprise receiving, at the processor, an indication that a first selected region of a surface of the object is to have a first coating applied after printing. The method may further comprise applying a first predefined surface roughness pattern to the first selected region of the surface of the digital model.
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公开(公告)号：WO2021061100A1
公开(公告)日：2021-04-01
申请号：PCT/US2019/052597
申请日：2019-09-24
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： FERRIS ROIG, Cristian , ALMACELLAS VISA, Julia , BORRAS CAMARASA, Marc , FONT CALAFELL, Davinia
IPC: B29C64/165 , B33Y10/00 , B29C64/393 , B33Y50/02
Abstract: Methods of treating fused build material in an additive manufacturing system are described. The method includes a first treatment process comprising: depositing unfused build material over the fused build material in a working area of the additive manufacturing system, thereby providing a first build material layer; and supplying energy from a first energy source to the first build material layer to heat but substantially not fuse the unfused build material of the first build material layer. The method also includes a second treatment process comprising: depositing unfused build material over the first build material layer in the working area, thereby providing a second build material layer; and supplying energy from a second energy source to the second build material layer to heat but substantially not fuse the unfused build material of the first and second build material layers.
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Patent Agency Ranking
公开(公告)号：WO2022025889A1
公开(公告)日：2022-02-03
申请号：PCT/US2020/044131
申请日：2020-07-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： FONT CALAFELL, Davinia , BORRAS CAMARASA, Marc , ALMACELLAS VISA, Julia , GONZALEZ MARTIN, Sergio
Abstract: A container is provided with a perimeter wall extending about a space to receive a three-dimensional printed job having a volume of at least one printed part and associated excess build material. Furthermore, the container is provided with a dividing wall arrangement extending across the space between first and second portions of the perimeter wall. The dividing wall arrangement is to increase the rate of cooling of the three-dimensional printed job.
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公开(公告)号：WO2022019902A1
公开(公告)日：2022-01-27
申请号：PCT/US2020/043062
申请日：2020-07-22
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： FONT CALAFELL, Davinia , ALMACELLAS VISA, Julia , BORRAS CAMARASA, Marc , GONZALEZ MARTIN, Sergio
IPC: B29C64/379 , B29C35/16 , B33Y40/20
Abstract: Object model data is obtained, representing a set of objects to be printed by a three-dimensional printer. Information is obtained about a container to receive the set of objects after printing, which includes a cooling volume extending vertically through the container volume. An arrangement of the objects is generated that enables the objects to be extracted to the container after printing without coinciding with the cooling volume.
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公开(公告)号：WO2022005464A1
公开(公告)日：2022-01-06
申请号：PCT/US2020/040412
申请日：2020-07-01
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： ALMACELLAS VISA, Julia , POLL CRESPO, Bernat , BORRAS CAMARASA, Marc
Abstract: In an example, a method includes obtaining, at processing circuitry, a spatial arrangement of objects to be generated in additive manufacturing. In some examples the method further includes determining, for the spatial arrangement, using processing circuitry, an indication of variation in temperature profiles of the objects in that spatial arrangement. The method may include determining whether the spatial arrangement is to be used for an additive manufacturing operation based on the determined indication.
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公开(公告)号：WO2021201818A1
公开(公告)日：2021-10-07
申请号：PCT/US2020/025651
申请日：2020-03-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B29C64/393 , B33Y50/02
Abstract: An example method includes obtaining a geometric compensation profile characterising a relationship between a location of an object within a first fabrication volume having a first depth of build material and a geometrical compensation to be applied to a model of said object. The method further includes determining that a first object is to be generated in a first build operation having a second fabrication volume which has a second depth. The method may further include determining a geometrical compensation to be applied to a model of the first object by: determining a first offset of the first object from the top of the second fabrication volume; identifying the geometrical compensation value associated with a location having the first offset from the top of the first fabrication volume; and determining the compensation to be applied to the model of the first object based on the identified geometrical compensation value.
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公开(公告)号：EP4110586A1
公开(公告)日：2023-01-04
申请号：EP20921507.8
申请日：2020-02-24
Applicant: Hewlett-Packard Development Company, L.P.
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