ANOVA OPTIMIZATION OF DRILL BIT TEMPERATURE IN DRILLING OF PURE AND CARBON BLACK REINFORCED HIGH DENSITY POLYETHYLENE. Journal of Engineering Studies and Research, [S. l.], v. 25, n. 3, p. 44–50, 2019. DOI: 10.29081/jesr.v25i3.29. Disponível em: https://jesr.ub.ro/journal/article/view/29. Acesso em: 13 sep. 2025.