STUDY ON DRILLING OF REINFORCED PLASTICS (GFRP AND CFRP) - RELATION BETWEEN TOOL MATERIAL AND WEAR BEHAVIOR.

Abstract

This paper deals with drilling of GFRP and CFRP, using high speed steel (SKH9) and cemented carbide (KO1, P10 and ultra-fine grain) drills. Comparison of four drills is done by investigation tool wear pattern, flank wear width and cutting forces. A new type of tool wear which should be referred to as 'combining wear' was found in drilling of CFRP. In addition, it was found that KO1 has the highest wear resistance, FG shows the second highest and the wear of high speed steel drill is remarkably larger than that of carbide drills.