METHOD AND APPARATUS FOR FLUID FLOW FOR ADDITIVE MANUFACTURING APPARATUS

    公开(公告)号:US20240131596A1

    公开(公告)日:2024-04-25

    申请号:US18531840

    申请日:2023-12-07

    CPC classification number: B22F12/70 B33Y30/00 B33Y40/00 B22F10/85

    Abstract: A fluid flow apparatus configured to provide a flow of fluid with particular flow profiles to a process chamber of an additive manufacturing apparatus is provided. The fluid flow apparatus includes a plurality of openings forming a first flow region, a second flow region, a third flow region, and a fourth flow region in adjacent arrangement along an axis in the process chamber between the build platform and the laser window. A controller is configured to execute instructions that perform operations that include flowing, via the second flow region, the flow of fluid along a second distance along the axis at a second velocity range between approximately 1.0 meters per second (m/s) and 6.0 m/s, and flowing, via the fourth flow region, another flow of fluid along a fourth distance along the axis at a fourth velocity range between approximately 0.1 m/s and 4.5 m/s.

    METHOD, DEVICE AND APPARATUS FOR CONTROLLING AN IRRADIATION BEAM

    公开(公告)号:US20240082921A1

    公开(公告)日:2024-03-14

    申请号:US18282295

    申请日:2022-04-27

    Inventor: Jan Wilkes

    Abstract: We describe a method for controlling an irradiation beam for irradiating a layer of raw material powder in an additive layer manufacturing process for producing a three-dimensional work piece, wherein the method comprises: depositing, with a layer depositing mechanism, a said layer of raw material powder on top of a carrier and/or on top of a preceding material layer on top of the carrier; and controlling the irradiation beam to irradiate at least a portion of the layer of raw material powder in an irradiation area when a distance between the irradiation area and the layer depositing mechanism is above a threshold distance, and wherein the threshold distance is dependent on (i) a speed of movement of the layer depositing mechanism, and (ii) a speed, vg, of a gas flow over the layer of raw material powder.

Patent Agency Ranking