Analysis of basic principles and three advantages of SLS

analysis of the basic principle of SLS and its three advantages of selective laser sintering rapid prototyping technology is the use of laser selective layered sintering of solid powder, and make the curing layer of the sintering forming layer by layer to generate the parts of the desired shape. First, the part model is generated by CAD, and the layered slice software is used to process it, and the information parameters of each section shape are obtained, which is used as the trajectory of the laser beam for two-dimensional scanning, the beam emitted by the laser is under the control of the computer, according to the coordinate data of each layer section of the geometric shape, the material powder layer is selectively scanned, and the powder is sintering together at the position of laser irradiation, after a layer of sintering is completed, the powder is then laid for the next layer of scanning sintering, and the new layer and the previous layer are naturally sintering together to finally generate a three-dimensional shape part. (2) Compared with other traditional manufacturing methods, the outstanding advantages of selective laser sintering technology are: ① highly flexible, under the control of the computer, it is convenient and rapid to make parts with complex shapes that are difficult to achieve by traditional processing methods, such as parts with complex concave and convex parts and hollow parts. (2) the technology is highly integrated, which integrates computer technology, numerical control technology, laser technology and material technology. (3) the production cycle is short. The technology takes only a few hours to dozens of hours from CAD design to the completion of parts processing, which is especially suitable for the development of new products.

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