SUN Bao yu1, TIAN Hong dong1, SUN Xiang chen2, WANG Ning1

 

(1. Mechanical and Electrical Engineering College, Changchun University of Technology, 

 

Changchun 130012, China; 2. The Redstone State owned Forest Management Substation 

of Jilin Province, Jilin 132423, China)

 

 

Abstract: Aiming at complex surface machining with high dimensional accuracy and high surface quality requirements, based on the five axis ultra precision complex surface polishing equipment and Preston theory, the removal function model of complex surface machining was derived according to the relative velocity of the workpiece and polishing tool head in the work process.The feed model was deduced according to the requirements of the removal of every point on the complex surface.Complex surface processing residuals were derived based on the positional relationship of adjacent point. And according to the residual, the resonability of polishing CNC machining step selection process was verified. The model was validated through experiments.The results indicate that the surface roughness of the surface roughness Ra<0.04 is obtained by using the model which established by polishing experimental.The accuracy and feasibility of the model are illustrated, which provide a strong theoretical basis for the realization of complex surfaces polishing efficiently.

 

Key words: complex curved surface; remove the model; processing model; residual error model