Tribo-characterization of silicon doped and nano-structured DLC coatings by metal forming simulators

Kuniaki Dohda*, Tatsuhiko Aizawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Diamond-like carbon (DLC) coatings have been utilized as a protective tribo-coating of punches and dies to decrease friction in forming processes. Although their frictional performance is characterized by ball-on-disc or pin-on-disc methods, their practical endurance behavior must be evaluated by metal forming simulators with consideration of wear severities in each individual forming process. Both Si-doped and nano-laminated DLC coatings were employed to perform an engineering characterization of their durability and toughness in practical metal forming operations and to search for new directions for DLC coating technology development to prolong tool life.

Original languageEnglish (US)
Pages (from-to)82-85
Number of pages4
JournalManufacturing Letters
Issue number3
StatePublished - Aug 2014


  • Diamond-like carbon coatings (DLC)
  • Engineering endurance
  • Metal forming simulator
  • Nano-laminated DLC
  • Si-doped DLC

ASJC Scopus subject areas

  • Mechanics of Materials
  • Industrial and Manufacturing Engineering


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