高速小直径深孔钻削过程中的切屑形态分析  

Analysis on chip morphology in the high-speed small-diameter deep-hole drilling process

作　　者：马龙[1,2] 沈兴全[1,2] 任晓敏[2] 

机构地区：[1]山西省深孔加工工程技术研究中心,山西太原030051 [2]中北大学,山西太原030051

出　　处：《制造技术与机床》2014年第2期122-125,共4页Manufacturing Technology & Machine Tool

基　　金：国家自然基金(51175482);科技部国际合作项目(2013DFA70770)

摘　　要：切屑形态能够直接影响到高速小直径深孔钻削的排屑效果,是孔加工质量好坏的决定性因素。通过实验研究了直径12 mm的3种不同刀片材质高速SIED深孔钻(YN05硬质合金刀片、TiN涂层刀片、陶瓷刀片)分别在不同的主轴转速和刀具进给量情况下切屑的形态和容屑系数K对排屑效果的影响。通过分析实验所得数据和研究实验过程所产生切屑的形态,得出切屑的容屑系数越小排屑效果越理想,其中C形屑、锥状屑为高速小直径深孔钻削过程中产生的最佳切屑形态。Chip morphology directly affects the effect of high-speed small-diameter deep-hole drilling,it is a decisive factor in the quality of deep-hole process. Through an experiment,we studies on the effects of the chip removal from different chip shape and chip capacity coefficient K under the condition of different spindle speed and tool feed about 12 mm high-speed SIED deep hole drilling,which has three different blade materials( the blade of YN05 hard alloy,the blade of TiN coating,the blade of ceramic). The experimental results show that if the chip capacity coefficient is small,its chip removal effect is ideal. And the C type chip,cone type chip are the best chip morphologies in high-speed small-diameter deephole drilling process.

关 键 词：深孔钻削 高速 小直径 切屑形态 

分 类 号：TG506.1[金属学及工艺—金属切削加工及机床]