Estimation of Hardness and Residual Stress on End-Milled Surfaces Using Linear Regression Model. - Hideyuki Fujii; Yukio Takahashi; Jiei Hodohara; Norikazu Suzuki; Yuki Yamada; Yasuhiro Imabeppu; Naruhiro Irino (Int. J. Autom. Technol., 2023)