Rapid prototyping technology has developed rapidly with its extensive application fields and application value since its inception. Combined with precision casting, machining and other manufacturing methods, this technology has become an effective method for manufacturing models and parts, and has been widely used in aviation, automobile, electronics, military equipment, building models and other fields.
Shandong rapid prototyping technology is a working process that transforms from 3D to 2D (discretization), and then accumulates from 2D to 3D (material accumulation). At present, the relatively mature process methods of rapid prototyping include selective laser sintering (SLS), light curing solid modeling (SLA), melt deposition modeling (FDM) and layered solid manufacturing (LOM).
The forming process of selective laser sintering technology has nothing to do with the complexity of the parts, and it is a true free forming. SLS can form parts of almost any geometric shape, and is particularly effective for forming parts of hollow structures (hollowed-areas), sockets with sockets, and cantilever structures. Figure 1 and Figure 2 are typical parts produced by selective laser sintering technology.
Selective laser sintering usually uses plastic, metal and ceramic powders as molding materials. The process is as follows: first lay a layer of powder on the worktable, and selectively sinter with laser beam under computer control (the hollow part of the part is not sintered, but is still powder material), and the sintered part is solidified together to form the solid part of the part. After the completion of one layer, proceed to the next layer, and the new layer and its upper layer are firmly sintered together. After all the sintering is completed, remove the excess powder to get the sintered parts.
At present, when the production structure of investment casting is complex and it is almost impossible to achieve products with molds, the wax molds used in its production are usually made by rapid prototyping. The method of combining selective laser sintering with investment casting to solve production problems has been well applied. Come to our website for more relevant content http://www.the7streamsdream.com Ask!