A Study on the Mirror-like machining of MgO Single Crystal with Optimum In-process Electrolytic Dressing System

최적 전해드레싱을 적용한 단결정 산화마그네슘(MgO)의 경면가공에 관한 연구

MgO single crystal is widely used as a the material of high temperature resistance, but is difficult to grind because of brittleness and crack generation. Therefore, superabrasive diamond wheel is required for mirror like grinding of this material. This study describes a newly proposed optimum in-process electrolytic dressing system for carrying out effective dressing of superbrasive diamond wheel. Using this system the grinding surface of MgO single crystal was improved, the grinding force was very l9ow and crack was removed. In conclusion, this system is good to obtain the efficient grinding and mirror-like grinding without crack of MgO single crystal.