METHOD OF MANUFACTURING LIQUID PASSING TYPE VITRIFIED GRINDING WHEEL AND LIQUID PASSING TYPE VITRIFIED GRINDING WHEEL WITH SPINDLE

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a liquid passing type vitrified grinding wheel allowing safe grinding of the inner peripheral surface of a material to be ground while securing grinding accuracy.;SOLUTION: Since a graphite linear material embedded in a molding process is burnt in a baking process, small diameter holes 24 are formed at the embedded parts of the graphite linear material in a grinding wheel body 12 to dissolve the initiation of a crack in the vitrified grinding wheel texture constituting the grinding wheel body 12 or the initiation of sagging in the aperture shape of the small diameter holes 24. Consequently, with the thus manufactured grinding wheel 10 with a spindle, safe grinding can be applied to the inner peripheral surface of the material to be ground, and grinding accuracy can be secured.;COPYRIGHT: (C)2002,JPO