| 摘要 |
PROBLEM TO BE SOLVED: To provide grinding method and device which efficiently cleans by easily and surely removing deposits adhered to an electrode for electrolytic dressing.SOLUTION: In this grinding device 1, a workpiece W is ground by a metal bond grinding tool 3, the metal bond grinding tool 3 and the electrode 5 for electrolytic dressing are impressed to be a positive electrode and a negative electrode, respectively, and machining time for performing electrolytic dressing for the metal bond grinding tool 3 and non-machining time are repeated. During the non-machining time, polarities of the metal bond grinding tool 3 and the electrode 5 are reversed and cleaning of the electrode 5 is performed. Continuously, the non-machining time is transferred to the machining time after completing the cleaning based on a comparison result of a current measured value and a current threshold between the electrode 5 and the metal bond grinding tool 3. When the current measured value is the current threshold or below, the cleaning of the electrode 5 is repeated till the current measured value becomes larger than the current threshold. |
