金刚石孔钻连续炉钎焊工艺研究  

Research on Brazing Technology of Diamond Drill in Continuous Belt Furnace

作　　者：王加育 肖冰[1] 高硕 

机构地区：[1]南京航空航天大学

出　　处：《工具技术》2017年第9期43-48,共6页Tool Engineering

基　　金：江苏省产学研合作前瞻性联合研究项目(BY2016003-15;BY2015003-02;BY2014003-18;BY2014003-02;BY2014003-11;BY2013003-15;BY2013003-14;BY2013003-04);江苏省产业技术研究院产业重大原创性技术创新项目(BO2015005)

摘　　要：通过在连续炉钎焊炉中对金刚石进行钎焊试验,并用所制得的金刚石孔钻进行钻削试验,得到了批量生产金刚石孔钻的可行钎焊工艺。利用扫描电镜比较了金刚石磨粒分别在真空钎焊和网带炉钎焊后的不同形貌,建立了孔钻的有限元模型,并模拟计算出孔钻在钎焊炉中的热循环曲线。对比热电偶实测结果,验证了有限元模型的准确性,对比分析了真空钎焊工艺和连续网带炉钎焊工艺的异同及其对孔钻使用寿命的影响。By brazing diamond grits in continuous belt furnace and by drilling tests with the brazed drills ,the feasible heating techniques were found. The microstructures of the diamond grits after vacuum brazing and belt furnace brazing were compared by SEM. The FEA model was also built and simulated in ANSYS software to get the temperature curves. Compared with the curve detected by thermoeouple, the reliability of the thermal model was proved. Finally,the differences be- tween the vacuum and belt furnace brazing techniques, and their effects on tool life were compared and analyzed.

关 键 词：钎焊工艺 金刚石孔钻 连续炉 有限元分析 界面组织 

分 类 号：TG713.1[金属学及工艺—刀具与模具] TH161[机械工程—机械制造及自动化]