| 摘要 |
PURPOSE:To provide a barrel polishing work and its manufacturing method where the production efficiency is excellent, the precision is high, and the variance is small. CONSTITUTION:After a hardened layer 24 by the soft nitriding is formed on at least the surface of a polished work, the centerless grinding and the barrel polishing are executed successively to make the surface roughness below Rmax 0.8mum, the roundness below + or -0.05% of the outer diameter, and the precision of the outer diameter below + or -0.05% of the outer diameter. |
