Self-lubrication of machining tools in dry via in-situ formed tribofilms

Tatsuhiko Aizawa, Shigeo Yamamoto, Taro Sumitomo

研究成果: Conference contribution

抄録

Green manufacturing technology has become a significant innovative keyword to reduce the environmental burden and CO2 emission at the stage of manufacturing and production. In daily operations by machining, huge amount of lubricating oils and cleansing agents is wasted so that dry machining technology provides us a way to completely reduce these wastes. Among several candidates, self-lubrication via in-situ formation of lubricious oxide films is accommodated to protective coatings in order to attain low friction and wear state even at higher cutting speed range. Materials science of in-situ formed lubricious oxide tribofilms is stated with consideration of accommodation mechanism via the chlorine implantation. Mechanical characterization is made for evaluation on elasto-plastic deformation of lubricious oxides. Turning test is employed to evaluate dry machinability of various tools for wide range of cutting speed. Self-lubrication in dry machining is described both for bare WC and TiCN-coated WC tools with and without chlorine implantation. Precise microstructure analyses are made by using the laser microscope, EDS and XPS. In-situ formation of lubricous oxides proves that self-lubrication process takes place even in dry machining to reduce the flank wear and friction coefficient.

本文言語English
ホスト出版物のタイトルMaterials Research Society Symposium Proceedings
ページ3-14
ページ数12
出版ステータスPublished - 2006 5 15
イベント2005 Materials Research Society Fall Meeting - Boston, MA, United States
継続期間: 2005 11 282005 12 1

出版物シリーズ

名前Materials Research Society Symposium Proceedings
890
ISSN(印刷版)0272-9172

Conference

Conference2005 Materials Research Society Fall Meeting
CountryUnited States
CityBoston, MA
Period05/11/2805/12/1

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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