抄録
In this paper, the influence of viscosity of cutting oil on wear of cemented carbide cutting tool was investigated with minimal quantity lubrication (MQL) system in turning when changing the cutting speed and the feed rate. As a consequence, it became clear that the side flank boundary wear reduction effect by MQL system was recognized compared with dry cutting, which is different depend on the feed rate; the cutting oil having the viscosity of 4.9 mm2/s is effective for the feed rate of 0.2 mm/rev, and the cutting oil having the viscosity of 9.3 mm2/s is suitable for the feed rate of 0.4 mm/rev, irrespective of changing the cutting speed. However, the front flank boundary wear increased when changing the viscosity of oil compared with dry cutting, and two front flank boundary wears appeared
