Abstract

The surface finish of machined parts determines the functionality of the product and also the machining requirements for making the parts. On-line monitoring of the surface finish has been an active area of machining research. Conventional contact techniques used for surface-finish measurement are not suitable for in-process measurement as they interfere with the machining operation. In this research, the principle of fractal geometry and image-processing techniques are used to implement a practical area-based surface-finish monitoring system. The fractal dimension estimated from the captured image is used successfully to characterize the machined surface.

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