%0 Journal Article %T Optimization of surface roughness in drilling using vegetable‐based cutting oils developed from sunflower oil %A Ozcelik, Babur %A Kuram, Emel %A Demirbas, Erhan %A Şik, Emrah %J Industrial Lubrication and Tribology %V 63 %N 4 %P 271-276 %@ 0036-8792 %D 2011-06-21 %I Emerald Group Publishing Limited %~ DeepDyve