| 摘要 |
1. Drilling tool, compensating the radial cutting forces, with a shank comprising at least two recesses staggered thereon at equal circumference angles, each of said recesses bearing in radial direction at least one replaceable cutting tip with several cutting edges (11, 12, 21, 22) of equal length, whereby each of the cutting tips is positioned in such a way, that a first cutting edge (11, 21) is engaged in the cutting operation along its full length and a second cutting edge, including an angle (beta) with the first cutting edge (12, 22), along a partial section, characterized in, that the positioning of the cutting tips (1, 2) in the recesses is performed in such a manner that for each single cutting tip the radial components of the cutting forces of the cutting edges (11, 12' ; 21, 22') engaged are neutralized by means of an inclination of the angle bisectors (W1 , W2 ) of the cutting edges (11, 12' ; 21, 22') engaged for an angle (alpha) to the parallels (P1, P2) with the tool axis, whereby said angle (alpha) corresponds to the effective length of the cutting edge (12, 22) engaged along a partial section (12', 22'). |
