Abstract
This paper presents experimental results of ultra-precision diamond turning of stainless steel. The steel cannot be machined normally by diamond tools due to excessive wear, although there are great demands for ultra-precision machining of the steel family. The ultra-precision diamond turning of stainless steel was realized by applying ultrasonic vibration of 40 kHz to the single crystal diamond tool in the cutting direction. An optical quality mirror of stainless steel with surface roughness less than 0.03 μm in Rmax was obtained. High quality surfaces with roughness less than 0.1 μm were obtained stably up to a cutting distance of 1 600 m. It is expected that these results will extend the application of ultra-precision cutting, which has been limited to products of light metals and plastics, and will lead to improving the quality and reducing the cost of various precision products.
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