| 摘要 |
A super-abrasive grinding wheel having a core member formed of an aluminum alloy including at least 40% by weight of aluminum, and at least one abrasive layer consisting of super-abrasive grains bonded to at least one surface of the core member, the super-abrasive grinding wheel being operable to perform a grinding operation at a peripheral speed of at least 80 m/s, wherein the core member is at least partially coated with a corrosion-resistant and wear-resistant protective film such as an anodized aluminum film, or a metal film formed by spraying a metallic material in a substantially molten state.
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