Technological Parameter Optimization of Disc-Milling Grooving of Titanium Alloy Based on Grey Correlation DegreeZhishan Li, Yaoyao Shi, Hongmin Xin, Tao Zhao and Cheng YangJNWPU, 36 1 (2018) 139-148DOI: https://doi.org/10.1051/jnwpu/2018361139