As one of the 3D printing methods, SLA has been widely accepted due to its diversified materials and low price. It has been widely used in many fields.
SLA full-scale stereo-curing molding is a molding method in which a liquid photosensitive resin is irradiated with ultraviolet light of a specific wavelength and intensity to form a three-dimensional solid layer by layer.
SLA uses ultraviolet light to illuminate the liquid photosensitive resin to cure it. During the processing, the platform will sink into the resin tank layer by layer. The resin tank is filled with liquid resin, and the ultraviolet light is irradiated on the liquid surface under the action of the deflection galvanometer. Scanning, where the spot passes, the irradiated liquid will solidify, and a plane scan will process a layer corresponding to the layered plane pattern and firmly bond with the cured portion of the previous layer, thus repeating until the whole The work piece is completed.
The SLA process generally requires cleaning, de-supporting, sanding, and re-solidification to obtain a product that meets the requirements. The SLA process needs to add support to the hanging wall part, and the product and the support are the same material. For the color model, the coloring process is also needed.
- High precision, smooth surface, and can make large size products;
- good rigidity, excellent acute angle, and small shrinkage;
- The surface details are excellent, very textured, and the production speed is fast;
- A wide variety of resins (white, translucent, fully transparent, high toughness, etc.) to meet various performance needs.