Research On Foundry Coated-sand Laser Rapid Prototyping Technology And System

In this paper, technology of coated-sand laser rapid prototyping based on contour scanning is presented according to the primary technics at the present time. Process and characteristic of the technology are described.Coated-sand laser rapid prototyping system is developed in this paper, including the development of mechanical equipment and the computer numerical control system. The laser X-Y scanning system, feeder system, elevating system, and the framework are rounded analyzed. The process of assembly is detailed analyzed.This paper designs computer numerical control hardware system. The integrated design and gross structure of the hardware system are narrated, including the elements of the hardware system. The laser rapid prototyping control software system is developed. The gross structure, the flow process, the major function and the form of the software is systematically analyzed. Some technique characteristics in hardware system and software system are discussed.Debugging and assembly process of the coated-sand laser rapid prototyping system are detailed analyzed in this paper. And the technology of coated-sand laser rapid prototyping based on contour scanning is carried out in the rapid prototyping system. Three-dimensional solid and foundry mold with high mechanical character are manufactured. And metal part was casted using the foundry mold.