TAGUCHI METHOD BASED OPTIMIZATION OF DRILLING PARAMETERS OF EN31 STEEL WITH PVD COATED AND UN-COATED DRILLS. Journal of Manufacturing Engineering, [S. l.], v. 10, n. 2, p. 112–116, 2015. Disponível em: https://smenec.org/index.php/1/article/view/244. Acesso em: 23 feb. 2025.