Additive manufacturing machine comprising a device for the distribution of powder onto a mobile surface using vibration
A technology of additive manufacturing and distribution devices, which is applied in the direction of coating devices, processing drive devices, processing and manufacturing, etc., can solve problems such as non-compliance, insufficient powder layer thickness, and component manufacturing defects, and achieve the effect of simplifying cleaning
Active Publication Date: 2020-10-16
ADDUP
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Problems solved by technology
[0010] If the powder flow rate is reduced during drawer movement, some of the powder layers spread over the work area will be locally insufficient in thickness, which will result in part fabrication with defects or does not meet the requirements
[0011] Also, if the powder flow rate is too high during all or part
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[0025] The present invention relates to additive manufacturing machines based on powder bed deposition. Additive manufacturing based on powder bed deposition is an additive manufacturing method in which one or more components are manufactured by selectively melting different layers of additive manufacturing powder placed one on top of the other. depositing a first layer of powder on a support, such as a plate, and selectively sintering the first layer of powder with one or more energy or heat sources according to a first horizontal cross-section of one or more parts to be manufactured or melt. Subsequently, a second layer of powder is deposited on the first layer of powder that has just been fused or sintered, and said second layer of powder is optionally sintered or fused, and so on, until it is used to produce one or more The final layer of powder for the final horizontal section of the component.
[0026] Such as figure 1 As shown, in order to enable the additive manufac...
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The invention relates to an additive manufacturing machine (10), this machine comprising at least one mobile powder-receiving surface (28) able to move in the vicinity of a manufacturing zone (20), apowder spreading device (30) and a distribution device (32) for distributing powder over the mobile receiving surface. The powder distribution device comprises a buffer reservoir (38) connected to a supply of powder (40), and a distribution duct (42) connecting the buffer reservoir to a powder distribution point (P1) situated above the mobile receiving surface, and the distribution duct (42) is mounted on a vibrating device allowing the distribution duct to be made to vibrate so as to generate a continuous stream of powder in the distribution duct and from the buffer reservoir toward the powder distribution point.
Description
technical field [0001] The present invention relates to the field of powder-based additive manufacturing by melting particles of powder using one or more energy or heat sources, such as laser beams and / or electron beams and / or diodes. [0002] More specifically, the present invention relates to the field of additive manufacturing based on powder bed deposition, the purpose of which is to supply powder to a device for laying down additive manufacturing powder inside a powder bed deposition additive manufacturing machine into layers. [0003] Still more specifically, it is an object of the present invention to obtain a stable and controllable powder flow rate from a movable powder receiving surface. Background technique [0004] Application WO2017108868 describes an additive manufacturing machine based on powder bed deposition comprising a manufacturing enclosure inside which there is a working plane and at least one working area in which powder layers are successively select...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B22F3/105B33Y30/00B33Y40/00B29C64/321
CPCB33Y10/00B33Y30/00B33Y40/00B22F2202/01B29C64/153B29C64/205B29C64/255B29C64/321Y02P10/25B22F10/28B22F12/52B22F12/90B22F12/57B22F12/37B22F2999/00B22F12/50B22F10/10B22F10/20B22F12/00B29C64/227B29C64/245B29C64/268B29C64/343B29C64/25
Inventor C·卡拉旺G·瓦尔朗
Owner ADDUP