In the field of CNC Aluminum Rapid Prototype, the SLA technology is always in the leading position. Now, let’s learn more about the advantages and disadvantages of the SLA rapid prototyping technology.
The disadvantages of the SLA Metal Rapid Prototyping technology :
1, It requires a special laboratory environment and finishing treatment for molded parts, such as secondary curing, moisture proof, etc.
2, Poor dimensional stability. The resin will absorb the moisture in the air over time that resulting deformation of thin part, which will greatly affect the size accuracy.
3, High cost. The helium-cadminum laser tube life is only 3000 hours and the price is really expensive. Because it will take long time to scan curing the entire cross-section, so the production cost is relatively high.
4, Limitation for material choice. It only can use photosensitive resin, but this kind of material can’t be tested for durability and thermal performance in most situation. Furthermore, the photosensitive resin will pollute the environment and make the skin allergy.
5, It’s necessary to design the support structure for the product to ensure that each structural part can be reliably positioned during molding process. However, the support structure needs to be removed when not fully cured and it’s easy to damage the molded parts.
The advantage of the SLA rapid prototyping technology:
1, The surface quality is better.
2, It has a high precision with the tolerance about 0.1mm
3, It has a higher resolution system that can build complex artifacts.
4,The system is stable. Once the system begins to work, the whole process of building parts is fully automated and doesn’t require any special care until the entire process is completed.
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