APPLICATION OF DATABASE TECHNIQUE IN SECTION CURVE SMOOTHING OF FORM WHEEL

摘要

The normal vector of the dressing tool must follow the section curve of the wheel to ensure the shape precision during the dressing process for form wheels. An Approximate Double Circular Arc Interpolated Method can be applied to make the section profile of the wheel become smooth. This can be accomplished by dividing each circular arc into a large number of short arcs. As a result the normal vector of the dressing tool can be equal to the normal vector of the gradually changed curve. Although lots of operation and ordering about the interpolated coordinate data need to be carried out during smoothing curve with plane point range, the software programming can be effectively simplified by using database technique of Visual FoxPro 6.0 with powerful index function to order and operate the point range.