Composite materials are widely used to make all kinds of machine parts, internal and structural materials of cars, aerospace industries, building structures, ship materials, sporting goods and others. It is worth the while to use composite materials as various substitutions when compared with others. But the use is limited in the field of the mechanical processing because of its difficulties in processing.
Thus, it is proved that the surface is rough in and out of the hole processing the GFRP with HSS drill in the vertical machining center.
