Machining-path mapping from free-state to clamped-state for thin-walled parts

Thin-walled parts with curved surface are widely used in industrial applications and the high-quality machining is still a major problem because of low stiffness. By using machining-path obtained from design model thin-walled surface, accuracy requirement may easily not be met due to springback clamping deformation when process finished. It novel idea that mapping free-state clamped-state realized based on deformation, final can re-designed directly ensure after fixture released. Based concomitant thought elastic theory thin shell this study, mathematical for established surface. Then, corresponding relationship cutter contact (CC) points calculated by grid mapping. Finally, under clamped-state. Taking cylinder workpiece as an example, experiment results show proposed method achieve avoiding purpose error caused deformation. These research achievements vital importance realizing