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公开(公告)号：US20210245247A1
公开(公告)日：2021-08-12
申请号：US17047513
申请日：2018-10-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Jason C. Hower , Mohammed S. Shaarawi , Vladek P. Kasperchik , James McKinnell , Jennifer L. Wu
Abstract: In an example of a method for three-dimensional printing, a first amount of a binding agent is selectively applied, based on a 3D object model, to individual build material layers of a particulate build material including metal particles to forming an intermediate structure. The binding agent and/or a void-formation agent is selectively applied, based on the 3D object model, to at least one interior layer of the individual build material layers so that a total amount of the binding agent, the void-formation agent, or both the binding agent and the void-formation agent in the at least one of the individual build material layers is greater than the first amount. This patterns an area that is to contain voids. The intermediate structure is heated to form a 3D structure including a void-containing breakable connection.
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公开(公告)号：US20240246147A1
公开(公告)日：2024-07-25
申请号：US18628434
申请日：2024-04-05
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Jason C. Hower , Mohammed S. Shaarawi , Vladek P. Kasperchik , James McKinnell , Jennifer L. Wu
Abstract: In an example of a method for three-dimensional printing, a first amount of a binding agent is selectively applied, based on a 3D object model, to individual build material layers of a particulate build material including metal particles to forming an intermediate structure. The binding agent and/or a void-formation agent is selectively applied, based on the 3D object model, to at least one interior layer of the individual build material layers so that a total amount of the binding agent, the void-formation agent, or both the binding agent and the void-formation agent in the at least one of the individual build material layers is greater than the first amount. This patterns an area that is to contain voids. The intermediate structure is heated to form a 3D structure including a void-containing breakable connection.
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公开(公告)号：US11958110B2
公开(公告)日：2024-04-16
申请号：US17047513
申请日：2018-10-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Jason C. Hower , Mohammed S. Shaarawi , Vladek P. Kasperchik , James McKinnell , Jennifer L. Wu
Abstract: In an example of a method for three-dimensional printing, a first amount of a binding agent is selectively applied, based on a 3D object model, to individual build material layers of a particulate build material including metal particles to forming an intermediate structure. The binding agent and/or a void-formation agent is selectively applied, based on the 3D object model, to at least one interior layer of the individual build material layers so that a total amount of the binding agent, the void-formation agent, or both the binding agent and the void-formation agent in the at least one of the individual build material layers is greater than the first amount. This patterns an area that is to contain voids. The intermediate structure is heated to form a 3D structure including a void-containing breakable connection.
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公开(公告)号：US20230249258A1
公开(公告)日：2023-08-10
申请号：US18013450
申请日：2020-07-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Vladek Kasperchik , Jennifer L. Wu
Abstract: According to examples, an apparatus may include a processor that may generate first print control data that may include instructions to deposit a binding liquid onto selected areas in an upper set of layers of build material particles. The processor may also determine areas in a lower set of layers of build material particles at which a non-binding liquid that does not include the binder to be deposited to define sections of a part enhancement section, the lower set of layers being within a predefined distance below the upper set of layers, in which the areas in the lower set of layers are based on the areas in the upper set of layers of build material particles at which the sections of the part are to be defined. The processor may further generate second print control data corresponding to the determined areas in the lower set of layers.
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