Japanese Patent JPH0338073

B2

PURPOSE:To improve polishing efficiency by holding granular polishing material onto the surface of a block body made having a tennis-ball form and made of elastic material and permitting the grinding in use of the whole surface of an abrasive tool, in order to achieve easy polishing work. CONSTITUTION:An abrasive tool is constituted of a rubber block body 1 having a tennis-ball form and a surface covering layer 2 uniformly formed onto the whole surface of the outer peripheral surface, and the size of said abrasive tool is equal to that of a tennis ball. The block body 1 is made of soft urethane rubber, and the surface covering layer 2 is formed of the adhesive applied onto the outer peripheal surface of the block body 1 and the granular abrasive dispersed and solidified onto the surface of the adhesive. The abrasive tool is pressed onto the projection part of a metal mold W by an operator and then deformed, by the pressing force, to the shape conforming to the outer peripheral surface of the porjection part of the metal mold W. In this state, the pressing force necessary for deforming the abrasive tool acts onto the outer peripheral surface of the metal mold W, and when the abrasive tool is moved along the surface W, the surface of the projection part of the metal mold W is polished. Thus, the polishing efficiency can be improved by changing a rough abrasive material to a fine material.

SUGIURA TERUFUMI
INABA HARUKAZU
SAKURAI TAKESHI

JP15370583A

June 07, 1991

August 23, 1983

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TOYOTA JIDO SHOTSUKI SEISAKUSHO KK

B08B1/00; B24D15/04

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