Patent ID: 6711818
Filing Date: 2004-03-30
Classification: B23D,F16D,Y10T

Abstract:
Procedure for machining openings in work pieces with the following steps:providing a cutting tool with an insert which rotates around an axis of rotation, the insert having two cutting edges positioned alongside of the axis of rotation with a distance to one another (11, 12) which determine a cutting blade axis running through both, supporting a work piece near the cutting tool in a way that an imagined opening axis (9), which runs through two oppositely positioned opening edges (6, 7) to be machined in a predetermined alignment to the cutting blade axis, and machining of the opening edges of the work piece by cutting one opening edge with one cutting edge and the other opening edge with the other cutting edge with both opening edges showing a required distance (8) to one another alongside the opening axis in a finished state, positioning of the two cutting edges (11, 12) along the cutting blade axis (13) at a distance to one another (14), which is greater that the distance (8) between the opening edges (6, 7), inclination of the opening axis (9) and the cutting blade axis (13) in an initial position at an acute angle (a) to one another so that the distance between the cutting edges (11, 12) parallel to the opening axis (9) is equal to the required distance (8) of the opening edges (6, 7), and reduction of the inclination angle (a) with a wear of the cutting edges (11, 12) so that the cutting distance between the cutting edges (11, 12) parallel to the opening axis (9) continues to correspond to the required distance (8) of the opening edges (6, 7).