TY JOUR TI Increase in efficiency of quality and hole-making in glass-reinforced titanium laminate by reducing drilling vibroactivity KW glass fiber reinforced plastic (GFRP) KW delamination KW double-angle drill sharpening KW vibroactivity KW torque effect KW fiberglass drilling. JO Vestnik of Don State Technical University AU Sibirskiy , V.. AU Shevtsov , S.. AU Chigrinets , E.. PY 2016 IS 16 PB Don state technical University