| 摘要 |
PURPOSE:To remove burrs, etc. caused by the cutting of the metal layer on the surface of a base by grinding a cut end portion along the moving track of a rotary cutting blade by means of a rotary grinding blade having a thickness larger than the rotary cutting blade. CONSTITUTION:At the time of cutting a base 4 in which a metal plating layer 3 is formed on a ceramic sintered body 1 into a defined shape, a rotary grinding blade having a blade thickness larger than a rotary cutting blade is provided in front or in the rear of the defined cutting track of the rotary cutting blade 6. When the grinding blade is provided in front of the defined cutting track, the cutting face of the metal layer 3 of the cutting place is previously greatly scraped off, without causing burrs, etc. on the cutting face at the time of cutting to appear on the surface. When the rotary grinding blade is provided in the rear of the cutting track, the burrs, etc. produced along the cutting face are scraped off by means of the following grinding blade. Hence, deburring can be carried out in one process greatly improving a working property. |
