GRINDING WHEEL HAVING IMPROVED ABRASIVE GRAIN HOLDING FORCE

摘要

PROBLEM TO BE SOLVED: To stably maintain the excellent cutting performance for a long time while evening the distribution of the abrasive grains so as to improve the holding force by arranging the abrasive grains in a net-like openings having openings smaller than the grain diameter of the abrasive grains so as to be projected from each opening, and fixing the net-body and the abrasive grains to a base metal with the blazing material. SOLUTION: An abrasive grain layer 13 provided in the inner and the outer surfaces of a tip of a swelling part 12b of a base metal is formed by arranging abrasive grains 16 in openings of a metal net 14 of titanium having openings smaller than the grain diameter of the abrasive grains 16 so as to be projected from the metal net 14. The metal net 14 and the abrasive grains 16 are fixed to the inner and the outer surfaces and a tip surface of the swelling part 12b by the blazing material such as Ag-Cu-In-Tt base. Projected quantity of the abrasive grains 16 from the metal net 14 is desirably set at 1/5-1/2 in relation to the grain diameter of the abrasive grains 16. Furthermore, double layers or more of the net bodies and the abrasive grains can be formed by similarly arranging the metal net and the abrasive grains on the abrasive grains 16 arranged in the openings of the metal net 14.