Page 221 - Demo

219DEEP HOLE DRILLINGMethod of ELB System Gun DrillingThe drilling method of a gundrill is quite simple. During the drilling process, high pressure coolant is supplied into the cutting zone through a channel in the shank, tube, and a hole in the tip. Under the action of pressure, the chips are evacuated from the machining zone along a V-shaped external flute into the chip receiver of the machine (Figure 6.5.1.1). Gundrill_system.pdfFigure 6.5.1.1workpiece bodydrillbushing chip boxbushingguidewhippingguide spindle