しごき加工による表面平滑化に関する研究

概要

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The object of this paper is to clarify the mechanism of mirror surface finishing by the ironing process. The mirror surface is needed for electrooptical parts such as optical drums, magnetic discs, etc., which are currently being finished by diamond turning lapping, etc. In the ironing process, the metal surface on the die-side becomes the rubbed surface (Ra≒0.05μm). In the case of applying high viscous oil it is rather inferior to a die surface (Ra≒0.006, 0.011μm) and when lower viscous oils are applied, galling often occurs. The metal surface on the punch-side nears a replica of the punch surface as the reduction increases under the dry conditions at the punch-metal interface. In this experiment, the metal surface was finished to Ra = 0.004μm under dry conditions on the punch-side. high viscous oil on the die-side and 50% in the reduction.
1989-09-25