| 摘要 |
PURPOSE:To provide the method for manufacturing a dynamic pressure generating fluid bearing capable of easily forming a groove for generating the dynamic pressure in a small working process and preventing the occurrence of burning etc., at the time of high-speed rotation by improving the surface strength. CONSTITUTION:A base material 9 consisting of aluminum alloy is prepared and successively, by anodizing treatment on the surface of the base material 9, an alumina anode oxide film is deposited. Successively, the base material 9 is dipped into the water and the groove for generating the dynamic pressure is formed by a laser beam oscillator 17. |
