| 摘要 |
PROBLEM TO BE SOLVED: To prevent reduction in work accuracy by providing base metal composed of a composite material mainly composed of at least one material selected from carbon powder, carbon silicon and metallic silicon and carbon fiber. SOLUTION: In a grinding wheel 11, a composite material mainly composed of at least one material selected from carbon powder, carbon silicon(SiC) and metallic silicon (metallic Si) and carbon fiber is used as base metal 12. An abrasive grain layer 13 is formed on the outer periphery. Here, either of a carbon fiber/carbon powder/SiC/metallic Si composite material, a carbon fiber/ SiC/metallic Si composite material, a carbon fiber/carbon powder/SiC composite material, a carbon fiber/carbon powder composite material and a carbon fiber/ SiC composite material is suitably used as a material of the base metal 12, thereby obtains an excellent effect such as being easy in handling, reducing abrasion of a spindle and being excellent in durability.
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