On the basis of residual areas after rough machining,a tool path generation algorithm for residual material fine machining at the corners of pocket boundary was developed and implemented in consideration of even radial cutting depth and smooth tool path.

Sharp turning corners of the tool path are rounded, and the transition from a tool path track to the neighboring one is fulfiled through smooth curves.

General linear and nonlinear smoothing in an intensity image can blur corners seriously, so it s difficult to detect corners by a multi scale approach.

A special two-chamber continuous-quenching inductor and the process in which cooling water and quenchant are controlled respectively,are adopted to deal with the problem of intermediate-frequency induction hardening on corner R.

The image-processing algorithm is proposed to extract the characteristics of the fiber, which can be obtained after fiber image denoising, image enhancement and corner detection.