Future technologies include pulse plasma drilling—using electrical discharges to disintegrate rock—and gyrotron-based millimeter-wave beams that melt through rock. Scientific and Industrial Significance
Deep hole drilling processes often involve asymmetrical tool design, where the tool rotates while the workpiece remains stationary, or both rotate in opposite directions. The Drill
High-pressure coolant is critical. In Gundrilling , coolant travels through the tool, forcing chips out along an external V-shaped flute. In BTA (Boring and Trepanning Association) drilling , used for larger diameters, coolant is fed outside the drill tube and flushes chips out through the center of the drill, preventing damage to the bore surface. In Gundrilling , coolant travels through the tool,
As depth increases, torsional vibration becomes a critical concern for safety. Core Technologies and Methods Core Technologies and Methods Ideal for small-diameter deep
Ideal for small-diameter deep holes, typically producing highly precise, straight holes.