Super hard alloy baseplate outer circumference cutting blade and manufacturing method thereof

A method for manufacturing an outer blade cutting wheel comprising the steps of:

• providing a base in the form of an annular thin disc of cemented carbide having a Young's modulus of 450 to 700 GPa, 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,
• providing diamond and/or CBN abrasive grains pre-coated with a magnetic material,
• placing a permanent magnet near the outer periphery of the base so that the magnetic field produced by the permanent magnet may act to magnetically attract and hold the coated abrasive grains close to the outer periphery of the base,
• electroplating or electroless plating a metal or alloy on the base outer periphery and the coated abrasive grains being magnetically attracted and held, for bonding the abrasive grains together and to the base to fixedly secure the abrasive grains to the base outer periphery to form a blade section, and
• letting a metal or alloy having a melting point of up to 350° C. infiltrate into any voids between abrasive grains and between abrasive grains and the base.