TA15和TC4切屑形态对刀具振动影响的实验研究  

Experimental Study on the Effect of TA15 and TC4 Chip Shape on Vibration Acceleration

作　　者：范鹏飞[1] 李金泉[1] 周培培[1] 

机构地区：[1]沈阳理工大学机械工程学院,辽宁沈阳110159

出　　处：《成组技术与生产现代化》2016年第4期41-44,60,共5页Group Technology & Production Modernization

基　　金：国家自然科学基金资助项目(51275317)

摘　　要：对TA15和TC4两种钛合金材料进行车削实验,运用公式量化材料的绝热剪切敏感特性.研究了两种材料绝热剪切敏感特性对切屑锯齿化程度和切削中刀具振动的影响.研究证明:两种材料在高速切削下产生了锯齿形切屑,而且切屑的锯齿化程度对刀具的振动有明显影响;绝热剪切敏感性大的材料,锯齿形切屑锯齿化程度和刀具振动加速度均较大.By the cutting experiment of titanium alloy materials TA15 and TC4 and the formula quantization of adi abatic shear sensitivity properties, the effect of adiabatic shear sensitivity on the serrated degree of the cutting chip and the difference of vibration generated in cutting process was studied. The study shows that materials TA15 and TC4 produce the serrated chips in the high speed cutting. The serrated degree of the cutting chip has a significant effect on the vibration of cutting tool. Higher the adiabatic shear sen sitivity of the material means the larger the serrated degree of the cutting chip and larger the vibration acceleration of the material.

关 键 词：TA15钛合金 TC4钛合金 切削振动 绝热 剪切敏感性 

分 类 号：TG51[金属学及工艺—金属切削加工及机床]