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Rapid Prototyping Services, Professional manufacturer of CNC Prototyping and 3D Prototyping in China.
SLA is an abbreviation of English stereolitography, the photo-sensitive resin is used for the chemical reaction of the laser, and the principle of light polymerization occurs. When the liquid resin has a light polymerization reaction with a sharp increase in molecular weight under certain ultraviolet radiation, it quickly becomes a solid state. And the laser beam is controlled by a computer program, scanning the surface according to the structure of the customer's 3D map, and the liquid is cured wherever it goes. When a layer of swept surface is completed, the liquid that is not irradiated by the laser is still in its original state, when the lift table drops a layer of height, the solid and the liquid are separated, and the laser beam starts a scanning cycle again. So repeatedly, until the whole part is formed, the whole 3D physical part is obtained.
has unique advantages and features compared with traditional methods:
1. The product manufacturing process is almost irrelevant to the complexity of the part.
2. The unit price of the product is almost irrelevant to the batch, especially suitable for the development of new products and the production of single-piece small batch parts.
3. Non-contact processing, no problems such as tool replacement and wear, can be unattended.
4. No cutting, noise and vibration, etc. , is conducive to environmental protection.
5. The production process is digitized and directly related to the CAD model. The parts can be large or small, and they can be modified at any time and manufactured at any time.
6. Combined with the traditional method, it can realize the functions of rapid casting, rapid mold manufacturing, small batch parts production, and inject new vitality into the traditional manufacturing method.
Advantages of SLA rapid prototyping for prototype models: fast molding speed, capable of machining any complex parts without removing parts, make up for the disadvantages of CNC engraving for the bonding of the reverse buckle. It is an indispensable modern processing equipment for prototype factory.
1, rolling processing
quenching can be used as well as fine grinding the roller or ball in the future, the surface of the prototype model is rolled at normal temperature, so that plastic deformation occurs. After rolling, the roughness of the surface of the prototype model can be effectively improved. In addition, the cold and hard layer and residual pressure stress can also effectively improve its bearing capacity and fatigue strength.
2, shot blasting strengthening
It is a bead with very fast utilization speed the pill struck the surface of the prototype, let it appear cold hard layer and residual pressure stress. It can obviously improve the fatigue strength of the part and the time of use. The material of the bead pill can be cast iron, and the key wire state can also be used. If some workpieces are made of aluminum, in order to avoid corrosion caused by some iron particles above, aluminum balls or glass balls can be used. This reinforcement process is especially suitable for application in cases where some collisions are more complicated and cannot be carried out by other methods.
3, Diamond Crush process
It is using cylindrical or spherical diamond way to compress the prototype model. Through this process, the surface quality of the workpiece can be improved effectively by production efficiency, and the prototype can also have better fatigue strength.
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