WORM MILLING CUTTER Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: worm milling cutter has cutting teeth decreased in thickness that alternate with cutting teeth decreased in height. Each of the teeth has common portion of the profile that is coincident with the full profile over a length of 0.025m below of the head of the decreased tooth, where m is the modulus. The front side of the teeth decreased in thickness comprises two portions. One of the portions abuts against the periphery cutting edge and is bounded with a radius whose length is defined by a relationship presented in the invention description. EFFECT: enhanced reliability. 6 dwg