Patent ID: 11878356
Assignee: ZF FRIEDRICHSHAFEN AG
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A method for deburring at least one borehole in a metal workpiece, comprising deburring the at least one borehole by applying a rotationally symmetric form cutter to the workpiece, the rotationally symmetric form cutter including a plurality of shearing edges and a plurality of land ridges, wherein each shearing edge of the plurality of shearing edges is arranged in pairs on two circumferential sides of a respective land ridge, wherein each land ridge of the plurality of land ridges comprises a first portion, a second portion, and a third portion, wherein the first portion is formed parallel to a longitudinal axis of the form cutter, wherein the second portion comprises a first angle with respect to the longitudinal axis, and wherein the third portion comprises a second angle with respect to the longitudinal axis, wherein the second angle is greater than the first angle, wherein the at least one borehole is deburred by plunging the form cutter into an opening intersecting the at least one borehole and rotating the form cutter.