| 摘要 |
PROBLEM TO BE SOLVED: To perform centerless grinding by imparting a proper center height dimension to a material to be ground of a very small diameter (unillustrated) by improving a blade to be used by being combined with a multi-flange shape adjusting grinding wheel 5 constituted by overlapping disc-shaped grinding wheels 5a and disc-shaped spacers 5b. SOLUTION: This blade 7 is provided with many parallel grooves 7a and parallel columns 7b. A maximum depth dimension of the parallel groove 7a is equal to a thickness dimension T of the blade 7. Each top face of many parallel columns 7c is therefore independent without being connected with each other. In this invention, wear resistance is excellent since the top faces of the parallel columns 7c are made of cemented carbide tips 7b. Surface hardening treatment may be performed in place of the mounting of the cemented carbide tips 7b. COPYRIGHT: (C)2003,JPO
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