Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (4): 1-4.

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Wear Characteristics of Ceramic Tools in Hard Turning of Iron-Base Sintered Alloys

Han Li-fa  Xia Wei  Xiao Zhi-yu  Zhu Quan-li  Li Yuan-yuan   

  1. College of Mechanical Engineering,South China Univ.ofTech.,Guangzhou 510640,Guangdong.China
  • Received:2004-06-17 Online:2005-04-25 Published:2005-04-25
  • Contact: 韩立发(1971-)，男，博士生，主要从事粉末冶金材料的精密加工及加工系统的智能监控研究 E-mail:tonyhan98@ tom.com
  • About author:韩立发(1971-)，男，博士生，主要从事粉末冶金材料的精密加工及加工系统的智能监控研究
  • Supported by:

    国家自然科学基金重点项目(50135020)

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Abstract:

On the basis of the experimental investigation into the hard turning of iron.base sintered alloys by Al2O3 /(W,Ti)C ceramic tools,the wear characteristics and failure mechanism of the tools were analyzed.and the effects of cutting parameters and material property on the tool wear were discussed.The results indicate that Al2O3 /(W,Ti)C  ceramic tools are effective for the hard turning of iron-base sintered alloys．and that the norlnal wear m0des of the tools are mainly the abrasive wear accompanied by micro-chipping and fracture and the adhesive wear . while at a higher cutting speed,the tool failure is mainly due to the fracture on the cutting edge.

Key words: iron-base sintered alloy, ceramic tool, hard turning, wear