涂层损耗对硬质合金刀具磨损率变化影响的研究
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  • 英文篇名:The Research of Effect of Coating Layer Loss on the Wear Rate Change of Coated Carbide Tools
  • 作者:许宁萍 ; 罗霁
  • 英文作者:XU Ning-ping;LUO Ji;School of Mechanical Engineering,Nantong Institute of Technology;
  • 关键词:涂层 ; 磨损率 ; 镍基合金718 ; 最小二乘法
  • 英文关键词:coating layer;;wear rate;;inconel 718;;least square method
  • 中文刊名:ZHJC
  • 英文刊名:Modular Machine Tool & Automatic Manufacturing Technique
  • 机构:南通理工学院机械工程学院;
  • 出版日期:2018-10-20
  • 出版单位:组合机床与自动化加工技术
  • 年:2018
  • 期:No.536
  • 基金:“十三五”江苏省一级学科省重点建设学科项目(2016-0802机械工程);; 江苏高校品牌专业建设工程资助项目(PPZY2015C251机械设计制造及其自动化);; 南通理工学院科研项目(2017012)
  • 语种:中文;
  • 页:ZHJC201810027
  • 页数:5
  • CN:10
  • ISSN:21-1132/TG
  • 分类号:111-115
摘要
为研究涂层刀具损耗对刀具磨损率变化的影响,分别利用Ti N和Ti Al N涂层金刚石刀具对碳素钢AISI 1045、中碳钢AISI 4135、球墨铸铁以及镍基合金718进行切削实验。首先建立切削过程中刀具磨损率变化和涂层损耗之间的关系;然后,利用扫描电镜(SEM)和能量色散谱(EDS)将磨损率变化与涂层损耗之间的关系联系起来;实验结果表明,刀具涂层能够一定程度上抑制磨损率的变化,随着涂层磨损至完全脱落后,刀具磨损率急剧增大;另一方面,也为合理选择切削速度提供了理论基础。
        In order to research the effect of coating layer loss on the wear rate change,the TiN-and TiAlN-coated carbide tools were used to machine the carbon steel AISI 1045,AISI 4135,ductile cast iron and Inconel 718,respectively. Firstly,the relationship between tool wear rate change and coating layer loss during cutting process was verified. Then,the relationship between wear rate change and coating layer loss was investigated by scanning electron microscopy( SEM) and energy dispersive spectroscopy( EDS).Finally,the experimental results show that the coating layer can inhibit the change of wear rate to a certain extent,but the wear rate of tool increases sharply when the coating is completely worn off. On the other hand,it provides a theoretical basis for reasonable selection of cutting speed.
引文
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