| 摘要 |
<p>The present invention relates to the PCD temp cutter which comprises the edge surfaces at both sides of the scribe line formed on the center of the cutter, wherein the conical s surface is integrally formed on the outer side of each edge surface, so that the cutting wheel is formed as a diamond cone-type cutting wheel, and a method for manufacturing the same. A pressure per unit area of the edge portion, wherein the pressure is transmitted to the workpiece, can be increased so that vertical deeper cracks are obtained when the outer diameter of the scribe line is reduced and the same cutting pressure is applied. Therefore, when the scribing process is performed, horizontal cracks on the workpiece are minimized and vertical deep cracks can be easily generated with small pressure. Thus, the workpiece can be broken completely without a continuous or noncontinuous piece (chipping) generated when the workpiece is cut. In particular, since the apexes of the conical surfaces formed on both sides are engaged by using the holders, wear of an axis and vibration of a tool can be prevented, and a life of the tool can be also lengthened. In addition, a concentricity and tolerance of a dimension and an angle can be precisely processed, workability and productivity can be improved, and the diamond cone-type cutting wheel can be processed with an optimal state maintained according to the raw material.</p> |
