R&D on Laser Beam Scanning Manufacturing system based on oef geometry algorithm & DEA control model

This paper presented the actions and data communication among the components of Laser Beam Scanning Manufacturing (LSM). There was nonlinearity mapping between output coordinates and scanner sphere coordinate and scanner driver in LSM. And it brings about nonlinearity errors of manufacturing geometry model. The OEF geometry algorithm and DEA control model was founded based on analysis of LSM technological speciality. The OEF algorithm and DEA model concerns not only the distance of the two swaying mirrors, the distance between the swaying mirror and convex lens, the mirror swaying angle and the lens focal length but also the lens central height, the lens convex radius and the medium refractive index. It improved the precision and reduced the errors in LBM system. Modularization design ideology was adopted in the control system of LBM system. It reduced the difficulties of programming, shortened the design recycle while enhancing the stability of control system and the speed of manufacturing process.