Research on Mirror Surface Finish by the Ironing Process

Nozomu Kawai, Kuniaki Dohda, Kazuhiro Akiyama, Zhrgang Wang

Research output: Contribution to journalArticlepeer-review


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≒0.05 μ m). In the case of applying high viscous oil it is rather inferior to a die surface (Ra ≒ 0.006, 0.011 μ m) 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 = 0.004 μ m under dry conditions on the punch-side. high viscous oil on the die-side and 50% in the reduction.

Original languageEnglish (US)
Pages (from-to)2493-2498
Number of pages6
Journaltransactions of the japan society of mechanical engineers series c
Issue number517
StatePublished - 1989


  • Aluminum
  • Extra-fine Surface
  • Ironing
  • Plastic Forming
  • Press Working
  • Tribology

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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