In recent years, developments in the mechatronics and telecommunication industry have caused a rapid increase in the use of brittle materials such as sintered carbide, silicon, fine ceramics, and optical glass. The optimum dressing of superabrasive wheels and the development of a microposition system makes possible the mirror-like grinding of these brittle materials, but the present dressing system cannot provide sufficient control for the optimum dressing of the superabrasive wheels.In this study, a new system of optimum in-process electrolytic dressing and a microposition system are developed. This system can carry out optimum in-process dressing of superabrasive wheels, and gives effective control of the unstable dressing current and insulating layer.Therefore, ultraprecision grinding when using an optimum in-process electrolytic dressing system and microposition system is a good method for efficient mirror-like grinding of brittle materials.
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