Patent ID: 8733336

Claim:
A method for preparing an outer blade cutting wheel comprising providing a base in the form of an annular thin disc of cemented carbide having an outer diameter of 80 to 200 mm defining an outer periphery, an inner diameter of 30 to 80 mm, and a thickness of 0.1 to 1.0 mm, and electroplating a metal bond together with abrasive grains to deposit on the outer periphery of said base an electroplated layer in which the abrasive grains are bound with the metal bond, the abrasive grains comprising diamond grains, CBN grains or a mixture of diamond grains and CBN grains, the metal bond having a Young's modulus of 0.7×10 11 to 4.0×10 11 Pa, said electroplated layer having a thickness which is greater than the thickness of said base by at least 0.01 mm and serving as a blade section, wherein said metal bond comprises an alloy which is one of the group consisting of: an alloy consisting of Ni and Zn, an alloy consisting of Ni and S, an alloy consisting of Ni and Sn, an alloy consisting of Ni, Sn and S, an alloy consisting of Ni and phosphorus, an alloy consisting of Ni, phosphorous and Zn, an alloy consisting of Ni, phosphorous and S, an alloy consisting of Ni and Mn, and an alloy consisting of Ni, Mn and S.