Performance evaluation of TiN coated CBN inserts during hard turning of AISI 4340 steel with using Taguchi-Grey-Fuzzy approach. International Journal of Emerging Trends in Science and Technology, [S. l.], v. 4, n. 08, p. 5487–5494, 2017. Disponível em: https://ijetst.in/index.php/ijetst/article/view/1294. Acesso em: 15 jun. 2026.