Study on the Cutting Performance of the Small Diameter Drills (2nd Report)

Abstract

The torque and thrust of the 0.3∼2.0 mmφ drill of the brass, mild steel, duralumin, or copper were measured and certain empirical formulas have been obtained. And it was revealed that the rese of a cutting fluid of C Cl₄ reduced, the cutting force of the mild steel by about 20∼40% of the dry cutting.