1Hwang C L, Shi Y D. Noncircular cutting on a lathe using tool position and differential motor current [J]. International Journal of Machine Tools and Manufacture, 1999, 39(2): 209-227.
2Reddy R G, DeVor R E, Kapoor S G, et al. A mechanistic model-based force-feedback scheme for voice-coil actuated radial contour turning [J]. International Journal of Machine Tools and Manufacture, 2001, 41(8): 1131-1147.
3Reddy R G, Devor R E, Kapoor S G, et al. A mechanistic force model for combined axial-radial contour turning [J]. International Journal of Machine Tools and Manufacture, 2001, 41(11): 1551-1572.