涂层刀具车削淬硬钢时前刀面摩擦系数的自组织特征  

Self-organization Indicated by Friction Coefficient on Rake Face When Turning Hardened Steel With Coating Tools

作　　者：侯志刚[1] 赵军[2] 徐立强[3] 郭忠[3] 

机构地区：[1]山东大学机械工程学院 [2]山东大学 [3]烟台大学

出　　处：《工具技术》2010年第5期24-26,共3页Tool Engineering

基　　金：中国博士后科学基金面上资助项目(20080431174);山东省博士后创新项目专项资金资助项目(200702026)

摘　　要：采用四种硬质合金涂层刀片对45和T10A淬硬钢两种材料进行了正交切削试验,通过所测得的三向切削力计算了前刀面平均摩擦系数,详细分析了前刀面摩擦系数随切削过程的变化情况,以及切削参数对摩擦系数的影响。结果表明前刀面摩擦系数随切削过程的进行迅速减小并趋于稳定,表征了涂层刀具切削淬硬钢时的自组织现象。Cutting experiments were performed for turning two kinds of hardened steel with four types of coating tools by orthogonal experimental method.The friction coefficient on rake face was calculated through the tested cutting forces.The curves of the friction coefficient changing with the cutting process and its dependence on the cutting parameters were analyzed in detail.The results show that the friction coefficient on rake face decreases rapidly during the cutting progress and comes to a steady value,which could be an indication of the self-organization when turning hardened steel with coating tool.

关 键 词：涂层刀具 淬硬钢 前刀面 摩擦系数 自组织 

分 类 号：TG51[金属学及工艺—金属切削加工及机床]