New TCHP drawing dies with unprecedented performance

Richard E. Toth, John M. Keane, Ivi Smid

Research output: Contribution to specialist publicationArticle

5 Scopus citations


Tough Coated Hard Particles (TCHPs) is a class of nanostructure materials providing an unprecedented integration of multiple property extremes in ultra-performance tools, mechanical components and thermally applied coatings. The performance characteristics and wear behavior of the TCHP cutting inserts compared with top-rated, manufacturer-recommended TiCN/Al2O 3 CVD coated tools optimized for machining gray cast iron was used for cast iron machining. Powder from the first TCHP production lot produced was hot-pressed and EDM'd into SNU-432 inserts for cutting trials. All cutting corners were inspected optically for irregularities and approved square cutting inserts were individually labeled. It was observed that TCHP maintains a distinct cutting edge in insert test, without any material optimization or edge polishing. TCHP inserts maintain a sharper cutting edge longer than the benchmark inserts and its flank wear is relatively lower.

Original languageEnglish (US)
Number of pages5
Specialist publicationWire Journal International
StatePublished - Jan 2008

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Marketing


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