Cutting Forces in Gun Drilling: Thrust and Torque Explained
I estimate cutting forces to check whether the machine can handle the job before I start every deep hole drilling operation. Cutting forces in gun drilling have two components that I track separately: thrust force pushing the drill forward and torque resisting the rotation. Getting these wrong means either stalling the machine feed axis or snapping the drill shaft at depth. I have seen both outcomes on the shop floor, and neither is cheap to fix. ...