| 摘要 |
<p>A diamond segment or insert (10) for the cutting of hard materials and provided with dead holes (11) formed in one of its faces and shaped and distributed in such a way that all the cross-sections perpendicular to the longitudinal axis of the tool originate full surfaces whose areas are all substantially equal to each other and in a constant ratio with the area of the rated cross-section of the tool, whatever the degree of wear of the tool may be; the holes (11) have a depth greater than half the thickness of the tool and are disposed on the disk or the tool (12) intended to be used for the cutting alternately turned through 180° with respect to each other; the holes (11) may be filled with an aphonous abrasive or superabrasive material. </p> |
