METHOD OF THE DEEP DRILLING OF HOLES Russian patent published in 1995 - IPC

FIELD: machining. SUBSTANCE: cutting tool 1 is given the circular oscillations whose law, amplitude and frequency are ensured by the corresponding device. The cutting tool turns relative to the center O counterclockwise by the angle of γ. In this case the right cutting edge "a" of the tool bites into the material of processed workpiece 2 and strips off the thickened chip. The left cutting edge "b" goes out of the cutting zone practically at full length. Cutting tool 1 takes the given position until the right cutting edge "a" processes the sector embraced by the angle v₁, of the cutting surface of the processed workpiece. After that tool 1 turns relative to the center O clockwise by the angle 2γ.. In this case the left cutting edge "b" of the tool bites into the material of the processed workpiece and strips off the thickened chip. The right cutting edge "a" goes out of the cutting zone practically at full length. EFFECT: facilitated manufacture. 7 dwg