| 摘要 |
PROBLEM TO BE SOLVED: To uniformly and smoothly work an inner face of a working hole in glass and a ceramic, without damaging the inner face. SOLUTION: In this grinding wheel 10, there are provided a base 11 and an abrasive grain member 12, and the abrasive grain member 12 has a tapered shape. In this hole working method, a tapered angle of the abrasive grain member 12 is made 84.3-89.9°. A glass material or a ceramic material is fixed to a honing machine, the grinding wheel 10 is set to the honing machine, the wheel 10 is presses in the glass material or the ceramic material, while rotated, to be moved vertically with respect to the glass material or the ceramic material, and prescribed hole working is conducted thereby. A rotating speed of the grinding wheel 10 is made 500-5000 rpm. A speed of a reciprocating motion of the wheel 10 is made 1.0 mm/min-50 mm/min. COPYRIGHT: (C)2003,JPO
|
