A new polishing method of metal mold with large-area electron beam irradiation

Y. Uno, A. Okada, K. Uemura, P. Raharjo, S. Sano, Z. Yu, S. Mishima

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)


A new polishing method by large-area electron beam (EB) irradiation is proposed in this study. In the large-area EB irradiation equipment used here, an EB with high energy density is irradiated without focusing the beam. An EB irradiation in a few microseconds with a maximum diameter of 60 mm can be used for melting metal surface instantly. The experimental results made it clear that the surface roughness decreases from 6 μmRz to less than 1 μmRz in a just few minutes under a proper machining condition. The corrosion resistance of metal mold surface also could be greatly improved by large-area EB irradiation. Furthermore it is clarified that even the surface roughness of tilting surface close to 90° could be well improved. Therefore, large-area EB irradiation method has a high possibility to become a high-efficiency polishing method of metal mold.

Original languageEnglish
Pages (from-to)77-80
Number of pages4
JournalJournal of Materials Processing Technology
Publication statusPublished - Jun 12 2007


  • Corrosion resistance
  • EDM
  • Electron beam
  • Metal mold
  • Polishing

ASJC Scopus subject areas

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'A new polishing method of metal mold with large-area electron beam irradiation'. Together they form a unique fingerprint.

Cite this