| 摘要 |
PROBLEM TO BE SOLVED: To provide a recessed end surface machining method and device for grinding, and polishing by machining with free abrasive grains swirling along with a grinding wheel, with high accuracy with the free abrasive grains easily supplied and hardly dissipated. SOLUTION: A workpiece 2 is fixed to a rotating shaft tip 3a, and the bar-like grinding wheel 7 is controlled in a Z-axis 4, an X-axis 5 and a B-axis 14a to grind a workpiece end face into predetermined recessed face shape. The grinding wheel is moved again in an escape direction to have a predetermined space, and a polishing fluid 10 which is a magnetic fluid containing free abrasive grains, is supplied into a clearance 9 between the workpiece end face 2a and the grinding wheel. High-speed accelerating force is applied to the polishing fluid, which is the magnetic fluid containing the free abrasive grains, by the grinding wheel to perform polishing by swirling along with the grinding wheel. In this case, magnetic forces 16, 17 are arranged in the diagonal direction of the recessed end face to perform polishing while supplying the recessed end face with the polishing fluid which is the magnetic fluid containing the free abrasive gains. COPYRIGHT: (C)2005,JPO&NCIPI |
