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Rapid prototyping prototype Creation
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172. Problems in Rapid Prototyping?

1. Material issue
Molding materials currently in use the mechanical properties after molding parts can not meet the functional needs must be used to achieve post-processing requirements. Metal materials and high strength materials 1 RPM direct molding is an important direction of development. U.S. Michigam University Manzumd using high power laser welding of metal molded directly into the steel mold their research.

2. Prototyping precision and quality issues
Rapid Prototyping has the precision and surface quality of parts can not meet the engineering requirements are mostly only as a concept prototype modeling and functional tests to use, the need to improve molding and rapid prototyping software. Prints Stanford University in the United States accumulated layer by layer combined with 5-axis NC machining method of direct metal laser sintering, obtained with similar precision CNC machining.

3. The application of
RPM from manufacturing is mainly used for target: conceptual design and rapid prototyping and manufacturing functional test; rapid tooling prototyping; rapid functional parts manufacturing. But most of the RPM as prototypes for new product development and functional testing. Rapid tooling and rapid direct function of RPM parts manufacturing is facing a major technical problem as well as RPM and technological development a major direction. RPM depending on the manufacturing technology will be relatively independent of target development, and become more specialized.