Laser Technology Rapid Prototyping Laser Sintering

Laser rapid prototyping (LRP) is a new type of manufacturing technology that integrates advanced technologies such as CAD, CAM, CNC, laser, precision servo drives and new materials. Compared with traditional manufacturing methods, it has prototypes with high reproducibility and interchangeability; the manufacturing process has nothing to do with the geometry of the prototype; the processing cycle is short, the cost is low, the general manufacturing cost is reduced by 50%, and the processing cycle is shortened by more than 70%; technology High integration, realize the integration of design and manufacturing.


The United States, Japan, Germany, Belgium and other countries have invested a lot of manpower and material resources in technical research, and new products have been launched. China's Xi'an Jiaotong University has also successfully developed a three-dimensional photoforming machine LPS600a. Currently, there are more than 10 factories around the world producing this product.

The application of SLA technology in automobile body manufacturing can produce the required proportion of precision casting mold to cast a certain proportion of the body metal model, using this metal model can complete the final evaluation of the body through wind tunnel and crash test to determine it The design is reasonable. The body model was made using the American Chrysler SLA technology, and the aerodynamic test analysis was carried out in a high-speed wind tunnel, which achieved satisfactory results and greatly saved the test cost.

● It is used to test the intake pipe of automobile engine. The shape of the intake manifold cavity is composed of a very complex free-form surface, which improves the intake efficiency and has a very important impact on the combustion process. During the design process, airway testing of different intake ducts is required. The traditional practice is to manually process the trachea wood or plaster mold, describe it with dozens of sections, and then sand mold the air intake pipe. The woodworker's understanding of the drawings and his own technical level often lead to deviations between parts and design intentions, and sometimes this error impact is significant. Although using CNC machining can better reflect the design intent, the preparation time is longer, especially when the geometry is more complex. British Rover used rapid prototyping technology to produce the outer tube and cavity mold of the intake manifold, and achieved satisfactory results.