华南理工大学学报(自然科学版) ›› 2005, Vol. 33 ›› Issue (4): 1-4.

• •    下一篇

陶瓷刀具硬态车削铁基烧结合金的磨损性能

韩立发 夏伟 肖志瑜 朱权利 李元元   

  1. 华南理工大学 机械工程学院,广东 广州 510640
  • 收稿日期:2004-06-17 出版日期:2005-04-25 发布日期:2005-04-25
  • 通信作者: 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
  • 作者简介: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
  • 基金资助:

    国家自然科学基金重点项目(50135020)

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)

摘要: 通过对Al2O3 /(W,Ti)C陶瓷刀具硬态车削铁基烧结合金的试验研究,分析了刀具的磨损特性及机理,探讨了切削参数、材料特性对刀具磨损的影响.结果表明:Al2O3 基陶瓷刀具是硬态车削铁基烧结合金的一种较理想的刀具材料,其主要磨损机制为伴随有微崩刃和剥落的磨粒磨损和粘附磨损;当切削速度过高时,刀具的破损为主要失效形式.

关键词: 铁基烧结合金, 陶瓷刀具, 硬态车削, 磨损

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