ELECTRO-DEPOSITED DIAMOND DRESSER FOR FORMING SCREW-SHAPED GRINDING STONE FOR GEAR GRINDING AND METHOD OF MANUFACTURING SAME

The present invention provides an electro-deposite diamond dresser for forming a screw-shaped grinding stone for gear grinding capable of high-precision trimming and long life. The electro-deposited diamond dresser is provided with: a disk-shaped wheel (2) which has tapered surfaces (21) on both sides of an outer circumferential portion thereof so as to decrease in thickness toward an outer circumferential surface; a diamond grinding stone layer (3) extending toward outer circumferential edge portions of the tapered surfaces, and having a plurality of small particle-sized diamond grinding stones plated thereon as a plated layer; a plurality of installation grooves (5) formed in the outer circumferential surface of the wheel and having two intra-groove wall surfaces which form a predetermined angle; and polygonal single-crystal diamond grinding stones (4) which have a particle size greater than the small particle-sized diamond grinding stones, and have installation crystal faces (M1, M2) forming an angle equal