A powder precision supply system and its supply method
A supply method and powder technology, applied in the field of device supply and powder accurate supply system, can solve problems such as affecting printing quality and inability to accurately evaluate powder quantity, and achieve the effect of reducing design difficulty, reducing equipment forming risk, and reducing powder waste.
Active Publication Date: 2022-03-08
XIAN BRIGHT ADDTIVE TECH CO LTD
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Problems solved by technology
[0006] The purpose of the present invention is to provide a precise powder supply system, which solves the problem that the existing SLM equipment cannot accurately evaluate the amount of powder and affects the printing quality
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[0038] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0039] As the forming size of SLM equipment continues to increase, in order to minimize the powder addition process during the forming process, the volume requirements of the powder supply module are also increasing. If the powder supply is carried out according to the uniform powder supply ratio, the printing quality will be easily affected when the powder amount is insufficient, and the powder waste will be easily caused when the powder amount is too much. During printing, powder needs to be added multiple times, which will increase additional operating costs. In order to ensure a reasonable supply of powder for large forming size equipment and effectively improve the utilization rate of powder, the present invention provides a precise powder supply method, which specifically includes the following steps:
[0040] Step 1, start and initiali...
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The invention discloses a powder precision supply system, which includes n powder supply modules. The invention also discloses a powder precision supply method, which specifically includes the following steps: step 1, start and initialize; step 2, obtain the cross section of the printed part Figure; step 3, divide the forming area into n areas in the direction perpendicular to the scraper movement direction; step 4, calculate the amount of powder F required by the i-th powder supply module according to the areas divided in step 3 i ;Step 5, according to the results obtained in step 4, judge whether the powder quantity of all powder supply modules is sufficient; step 6, drop the forming platform by one layer thickness, and spread powder; When the printing is completed, the printing ends; if the printing is not completed, repeat steps 2‑7 until the printing is completed. The invention solves the problem that the existing SLM equipment cannot accurately evaluate the powder amount and affects the printing quality.
Description
technical field [0001] The invention belongs to the technical field of powder supply, and relates to a precise powder supply system, and also relates to a supply method of the above-mentioned supply device. Background technique [0002] SLM technology processes parts by adding materials, and quickly, directly and accurately transforms design ideas into physical models with certain functions. Compared with traditional processing methods, SLM can shorten the product design and manufacturing cycle, enhance the competitiveness of enterprises, enhance the profitability of enterprises, and establish a new product development model for industrial product designers and developers. [0003] The powder spreading device of the existing SLM equipment is generally mainly composed of a powder feeding bin, a forming bin, a recovery bin, a scraper and a bracket. The specific process is: the scraper spreads a layer of powder material on the upper surface of the formed part, the beam scans t...
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IPC IPC(8): B22F3/105B33Y30/00
CPCB33Y30/00B22F10/00B22F12/67B22F10/28Y02P10/25
Inventor 李洋杨东辉
Owner XIAN BRIGHT ADDTIVE TECH CO LTD