SLA(Stereo Lithography Apparatus)
The liquid tank is filled with liquid photosensitive resin, which will quickly solidify under the irradiation of the ultraviolet laser beam emitted by the laser (SLA and SLS use different lasers, SLA uses ultraviolet laser, while SLS uses infrared laser). At the beginning of the forming process, the lifting table is below the liquid level, at a height of just one cross-sectional layer thickness. The laser beam focused through a lens is scanned along the liquid surface according to machine instructions. The resin in the scanning area quickly solidifies, completing the processing of one layer of cross-section and obtaining a layer of plastic thin sheets. Then, the workbench descends by one layer of cross-sectional thickness and then solidifies another layer of cross-sectional thickness. In this way, layers are stacked to construct a three-dimensional entity.
Advantages of SLA technology:
1) The development history is the longest, the process is the most mature, and the application is the most extensive. Among all the 3D print machines installed worldwide, the SLA system accounts for about 60%.
2) The molding speed is fast and the system works stably.
3) Highly flexible.
4) Extreme high precision, which can reach the micron level, such as 0.025mm.
5) Good surface quality, relatively smooth.
3D print parameter table:
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