M. MANIKANDAN; S. MAHENDIRAN; A.P. SURYA CHANDRAN. Reduction of unforged bar bulb in engine valve manufacturing. International Journal of Intellectual Advancements and Research in Engineering Computations, [S. l.], v. 6, n. 1, p. 475–480, 2018. DOI: 10.61096/ijiarec.v6.iss1.2018.475-480. Disponível em: https://ijiarec.com/ijiarec/article/view/489. Acesso em: 7 nov. 2026.