At present, the application of rapid prototyping technology in investment casting in Shandong Province is related, and the problems arising from the application process are discussed.
Rapid prototyping technology has developed rapidly with its extensive application fields and application values since its inception. This technology has become an effective method for model and part manufacturing by combining with casting, machining and other manufacturing methods, and has been widely used in aviation, automobile, electronics, military equipment, building models and other fields.
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 more mature process methods of rapid prototyping include selective laser sintering (SLS), light curing stereo 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 with almost any geometric shape. It is particularly effective for forming parts with hollow structures, notches with in notches, and overhung structures. There are also typical parts produced for SLS technology.
The powder of plastics, metals and ceramics is usually used as the forming material in selective laser sintering. The process is as follows:
First, lay a layer of powder on the workbench, and selectively sinter with the laser beam under the control of the computer (the hollow part of the part is not sintered, but is still a powder material). The sintered parts are solidified together to form a solid part of the part. After the completion of one layer, the next layer shall be carried out, and the new layer shall be firmly sintered with the previous layer. After all sintering is completed, the surplus powder is removed to obtain sintered parts.
I can learn a lot about the application of rapid prototyping technology in investment casting, but you should also pay attention to the safety problems in use. More related matters can be found on our website http://www.szdgnt.cn Consult!