APPARATUS HAVING A MOVABLE CHAMBER

    公开(公告)号:US20210197285A1

    公开(公告)日:2021-07-01

    申请号:US16076370

    申请日:2017-04-18

    Abstract: According to examples, an apparatus may include a build platform and a chamber. The chamber may support a layer forming station including a spreading component to spread a layer of build material particles onto the build platform and an agent delivery component to apply fusing agent onto selected locations on the spread layer of build material particles and a heating station including a heating component to apply energy onto the spread layer of build material particles and the applied fusing agent, in which the heating station is separated from the layer forming station. The apparatus may also include an actuator to move the chamber with respect to the build platform or vice versa while maintaining the separation between the layer forming station and the heating station.

    INCREMENTAL BUILD MATERIAL SPREAD

    公开(公告)号:US20240383208A1

    公开(公告)日:2024-11-21

    申请号:US18693897

    申请日:2021-09-21

    Abstract: In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a bed moveable in a vertical direction. The bed is to receive a build material that is to form a three-dimensional (3D) printed object. The additive manufacturing system also includes a build material depositor to deposit the build material on the bed and a build material spreader to traverse across the bed to spread the build material. The additive manufacturing system also includes a solidification system to selectively solidify a layer of build material. The additive manufacturing system also includes a controller. The controller is to lower the bed by a first amount in preparation for receiving build material and iteratively raise the bed in increments in between passes of the build material spreader across the bed, wherein an increment is a portion of the first amount.

    3D PRINTER WITH A UV LIGHT ABSORBING AGENT

    公开(公告)号:US20210187834A1

    公开(公告)日:2021-06-24

    申请号:US16074276

    申请日:2016-10-31

    Abstract: According to an example, a three-dimensional (3D) printer may include a delivery device to deposit a light absorbing agent onto selected areas of a layer of build material particles, in which the light absorbing agent absorbs light having wavelengths that are around the ultraviolet wavelength range. The 3D printer may also include a light source to apply light onto the selectively deposited light absorbing agent and the layer of the build material particles, in which the light absorbing agent absorbs light around the ultraviolet wavelength range from the applied light and becomes heated to a temperature that causes the build material particles upon which the light absorbing agent has been deposited to melt and to fuse together following cessation of the application of the light.

    ADDITIVE MANUFACTURING WITH FUSING AND WARMING ENERGY SOURCES

    公开(公告)号:US20250153436A1

    公开(公告)日:2025-05-15

    申请号:US18834824

    申请日:2022-02-02

    Abstract: In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a build material deposition device to deposit a layer of a powder build material. The additive manufacturing system includes a fusing agent deposition device to deposit a fusing agent on a first portion of the layer that is to form a 3D object and a fusing energy source to deliver energy absorbed by the fusing agent to heat the first portion to a melting temperature of the powder build material. The additive manufacturing system also includes a warming energy source to deliver energy absorbed by a second portion of the layer to a temperature below the melting temperature. In this example, the second portion includes a warming agent and the fusing energy source and the warming energy source have different emission spectra.

    ADDITIVE MANUFACTURING WITH SELECTING AN IRRADIATION MODULE

    公开(公告)号:US20230391006A1

    公开(公告)日:2023-12-07

    申请号:US18031826

    申请日:2020-10-16

    CPC classification number: B29C64/291 B29C64/165 B29C64/282 B33Y30/00

    Abstract: An additive manufacturing method includes: selecting one of a plurality of irradiation modules based on a selected module having a wavelength band tuned for absorption by a fusing agent to be used to form an object by additive manufacture; plugging the selected module into a socket over the build platform; supporting successive, stacked layers of the object being formed on the build platform; using a liquid dispenser mounted on the carriage, selectively dispensing the fusing agent into an uppermost layer of build material in a pattern corresponding to a layer of the object being formed; and fusing the build material by exposing the fusing agent to a first wavelength band from a first irradiation source in the selected module.

    FUSING OF METALLIC PARTICLES
    10.
    发明申请

    公开(公告)号:US20190039136A1

    公开(公告)日:2019-02-07

    申请号:US16074564

    申请日:2016-10-31

    Inventor: Krzysztof NAUKA

    Abstract: According to an example, an apparatus may include a processor and a memory on which is stored instructions. The instructions may cause the processor to control at least one energy source to apply energy at a certain low energy level onto a layer of metallic particles, in which the metallic particles have micron-level dimensions, and in which application of the certain low energy level may sinter the metallic particles and may cause formation of physical connections between adjacent ones of the metallic particles. The instructions may also cause the processor to control the at least one energy source to apply energy at a certain high energy level onto the layer of metallic particles, in which application of the certain high energy level energy may melt and fuse the sintered metallic particles.

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