Patent ID: 6042308
Filing Date: 2000-03-28
Classification: B23G,Y10T

Abstract:
A thread milling cutter, comprising a shank to be received in a spindle of a machine-tool which imparts to the thread milling cutter a rotational movement about a longitudinal axis of the cutter, a circular movement, and a feed movement; and a milling region adjoining the shank at a front end of the shank and including at least two rows of teeth and extending parallel to each other;wherein the teeth of the at least two rows have same height, first flanks facing in a direction toward a free end of the milling region, and second flanks facing in a direction toward the shank;wherein respective teeth of the at least two rows are located in respective imaginary circumferential planes extending perpendicular to the longitudinal axis of the thread milling cutter and parallel to each other, andwherein for each imaginary circumferential plane, viewed in a circumferential direction which is defined by a direction of the rotational movement of the thread milling cutter, the first flank of a respective tooth of one of the at least two rows is located, in an axial direction, in front of the first flank of a respective tooth of another of the at least two rows, defining, together with the first flank of the respective tooth of the another of the at least two rows, a front offset, and the second flank of the respective tooth of the another of the at least two rows is located, in the axial direction, behind the second flank of the respective tooth of the one of the at least two rows, defining, together with the second flank of the respective tooth of the one of the at least two rows, a rear offset, with front and rear offsets, which are formed by respective teeth of the at least two rows, alternating with each other.