Powder feeding device and method for broadband laser cladding additive manufacturing
A technology of laser cladding and additive manufacturing, which is applied in the direction of additive manufacturing, additive processing, and improvement of process efficiency. It can solve the problems of uneven powder, large machining allowance, and poor uniformity, and achieve uniform powder and reduce The amount of overlap and the effect of surface smoothness
Pending Publication Date: 2022-01-07
NANJING ZHONGKE RAYCHAM TECH
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Problems solved by technology
[0004] The purpose of the present invention is to provide a powder feeding device and method for broadband laser cladding additive manufacturing, aiming to solve the problem of laser melting caused by the uneven and uneven powder feeding of the lateral preset powder powder in laser broadband cladding. Poor uniformity during cladding, poor flatness after cladding and large machining allowance
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[0042] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.
[0043] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of numerous ways, since the concepts and embodiments disclosed herein are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.
[0044] Powder Feeder for Broadband Laser Cladding Additive Manufacturing
[0045] to combine figure 1 The powder feeding...
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The invention relates to the technical field of laser additive manufacturing, and provides a powder feeding device and method for broadband laser cladding additive manufacturing. A pressure relief device is arranged between a broadband powder feeding nozzle and the surface of a base material, the pressure relief device and the broadband powder feeding nozzle form a certain angle, and the pressure relief device is installed at the position below a first powder outlet of the broadband powder feeding nozzle. The pressure relief device is used for conducting pressure relief treatment on the powder flowing out of the first powder outlet. The pressure relief device comprises a first-stage pressure relief mechanism and a second-stage pressure relief mechanism which are arranged in a cascade connection mode, the first-stage pressure relief mechanism is used for conducting pressure relief on the powder flowing out of the first powder outlet, and the second-stage pressure relief mechanism is arranged at the tail end of the first-stage pressure relief mechanism and used for conducting secondary pressure relief on the powder subjected to pressure relief through the first-stage pressure relief mechanism. Therefore, the problems of poor uniformity during laser cladding, poor flatness after cladding and large machining allowance caused by non-uniform and uneven powder feeding of lateral preset powder for laser broadband cladding at present are solved.
Description
technical field [0001] The present invention relates to the technical field of laser additive manufacturing, especially the powder feeding technology used in broadband laser cladding additive manufacturing, and specifically relates to a powder feeding device and method for broadband laser cladding additive manufacturing, aiming at feeding During the powder process, the powder is subjected to multi-stage pressure relief treatment, so that the powder can fall almost freely to the surface of the substrate. Background technique [0002] Laser additive manufacturing technology is an advanced manufacturing technology that is widely used in production processes such as 3D printing and remanufacturing. In the repair of some large workpieces, such as the surface of large shaft parts, large-area plane laser cladding, etc., using a rectangular laser spot for broadband cladding can greatly improve the cladding efficiency. The quality of the cladding is also improved. [0003] The powd...
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IPC IPC(8): B22F10/28B22F12/50B33Y30/00B33Y10/00
CPCB22F10/28B22F12/50B33Y30/00B33Y10/00Y02P10/25
Inventor 吴从皓唱丽丽蒋士春迟海龙纪楠周文超
Owner NANJING ZHONGKE RAYCHAM TECH
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