| 摘要 |
PURPOSE:To produce the title thin blade without any deformation and damage with good productivity, by forming an Ni plated layer contg. fine super hard abrasive grains on the upper and lower surfaces of a discoid base made of Al. CONSTITUTION:Plural discoid bases 10 made of a thin Al sheet are connected by a connecting member 15, and an electrical insulating material is coated on the peripheral surface 14 of the base 10 and the connecting member 15. A base unit 11 is dipped in an Ni plating bath 18 contg. super hard fine powder of diamond, cubic BN, etc., a consumable anode 20 consisting of metallic Ni is used, and an electric current is applied with the base 10 as the cathode. The Ni plated layers 22 and 23 contg. the super hard fine particles are electroplated on the upper and lower surfaces 12 and 13 of the Al base 10, then the insulating material on the peripheral surface 14 is removed, the unit is dipped in about 20% NaOH soln. to dissolve and remove the Al base 10, and the plated layers 22 and 23 formed on the upper and lower surfaces are collected as the blades. Since the blade is not mechanically released from the Al base 10, the blade without being deformed and damaged can be obtained with high productivity.
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