A Comparative Evaluation of Dry-MQL Turning Applications for AISI 5115 Steel

Authors : Bahar Sayın Kul, Ayşe Sena Yamaner

Pages : 23-32

View : 93 | Download : 100

Publication Date : 2025-04-30

Article Type : Research Paper

Abstract :This study investigates the effect of various machining variables on cutting forces and surface roughness during turning of AISI 5115 steel in dry and MQL environments. While the experiments were carried out using two different feed rates, four different cutting speeds and constant depth of cut, the effects of them and their different levels on surface roughness and cutting forces were analyzed by reference to full factorial experimental design. The prominent findings of the research are as follows: The lowest surface roughness was obtained at 90 m/min cutting speed and 0.15 mm/rev feed rate in both mediums. The lowest cutting force was obtained at 135 m/min cutting speed, 0.15 mm/rev feed rate in dry environment and at 50 m/min cutting speed and 0.15 mm/rev feed rate in MQL environment. It was determined that there was an average 6.90% reduction in cutting force and an average 12.2% reduction in surface roughness in MQL condition. As a result, it was observed that machining in MQL conditions gave better results than dry conditions. These results show that the MQL method improves the machining performance compared to dry machining.
Keywords : Tornalama, MQL (minimum miktarda yağlama), Kuru Ortam, Yüzey Pürüzlülüğü, Kesme Kuvveti

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