Share about SLA 3D printing technology of photosensitive resin curing

In recent years, with the continuous development of 3D printing industry, the cost of SLA light curable 3D printing models and photosensitive resins has gradually decreased, making it one of the most ideal choices for industrial molds, animation handcrafts and other applications. Today, I will take you to popularize the SLA 3D printing technology of photosensitive resin curing!

SLA Technical Principles

SLA (light curing molding technology), through specific wavelength and intensity of uv light focused on the surface of the optical resin material, the irradiation process from point to line, line to surface, layer by layer curing, until the finished product appears.

SLA 3d Printing
SLA 3d Printing

SLA technical advantages

SLA is one of the most widely used rapid prototyping technologies. Its maturity is high and has been tested for a long time. Its specific advantages are as follows:

No cutting tools and molds, fast processing speed, short production cycle;

It can process the prototype and mold with complex structure or difficult to form by traditional means;

Digital printing based on CAD digital model can reduce the cost of error repair.

To provide samples for experiments, the results of computer simulation can be verified and checked;

Compared with FDM molding process, SLA molding has high precision and smooth surface.

3D Printing machining
3D Printing machining

SLA General consumables

SLA light curing molding is mainly based on photosensitive resin as raw material. The material is usually liquid and consists of a mixture of photoinitiator, monomer polymer and prepolymer, which can immediately initiate polymerization and complete curing under a specific wavelength of UV light (250 nm to 400 nm).

Resin material
Resin material

Its products have smooth surface, high dimensional accuracy, the surface can be painted, with high strength, high toughness, and are mainly used for printing models with high precision and surface quality requirements, such as hand plate, hand work, jewelry or precision assembly parts and so on. It should be noted that photosensitive resin printed items will gradually become brittle and yellow if exposed to light for a long time.

A variety of choice of consumables to meet the needs of customers in all industries for material characteristics.

In terms of printing accuracy, SLA models have insurmountable advantages over FDM models, and are widely used in game and animation, medical biology, automobile molds, architectural design, sculpture, home decoration, film and television props and other fields. Next, Aurora will share several SLA application cases.

1, Animation handwork: 3D printed werewolf model, graduation project of Hunan university students. The model takes about 20 hours to print with a thickness of 0.1mm, and the fineness of the final product is much higher than expected, especially in details such as teeth and claw tips.

3D printed prototype
3D printed prototype

2, Footwear manufacturing: 3D printed high-heeled shoes mold, size 70x180x130mm, made by SLA technology, printing speed is very fast, the cost of a pair of shoes is less than 11h, and the finished surface is very smooth.

3d printed shoes
3d printed shoes

3, electronic industry: 3D printing electronic product shell. The model was printed with aurora SLA model and photosensitive resin with 0.05mm layer thickness. The whole printing process is very smooth, it only takes 20 hours to print, and the finished product is printed with high precision, and then polished and colored later, the overall effect is more outstanding.

3D printed electronic shell
3D printed electronic shell

4, Beauty industry: 3D printing cosmetics containers. SLA models support a variety of resin consumables, especially transparent consumables, which can simulate glass or acrylic cosmetics containers, helping designers to quickly verify the appearance, feel, capacity, level lines and more.

3d printing transparent

Many years of 3D printing technology precipitation, a large amount of practical experience of the senior R & D team, international standards of 3D printing equipment production line…… As a well-known 3D printing manufacturer in China, SLA technology products have high stability and practicality, and are well received by users at home and abroad. If you are interested in this kind of application, please contact us!

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