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

An outer blade cutting wheel comprising 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, and a blade section on the outer periphery of the base,

• said blade section comprising
• diamond and/or CBN abrasive grains pre-coated with a magnetic material,
• a first metal or alloy formed by electroplating or electroless plating, the first metal or alloy covering and bonding the pre-coated abrasive grains together and to the base, the pre-coated abrasive grains and the first metal or alloy constituting a porous bonded structure, and
• a second metal or alloy having a melting point of up to 350° C. infiltrated and filling pores of the porous bonded structure and between abrasive grains and the base.