TC4钛合金周向振动钻削中麻花钻后刀面磨损机理研究  

Research on wear mechanism of the flank face of twist drill in peripheral vibration drilling for TC4 titanium alloy

作　　者：陈应舒[1,2] CHEN Yingshu(School of Mechanical Engineering,Shaanxi University of Technology,Hanzhong 723000,China;Shaanxi Key Laboratory of Industrial Automation,Hanzhong 723000,China)

机构地区：[1]陕西理工大学机械工程学院,陕西汉中723000 [2]陕西省工业自动化重点实验室,陕西汉中723000

出　　处：《陕西理工大学学报（自然科学版）》2023年第6期8-14,共7页Journal of Shaanxi University of Technology:Natural Science Edition

基　　金：国家自然科学基金项目(51605269);陕西省科学技术厅重点研发计划项目(2020GY-119)。

摘　　要：针对TC4钛合金周向振动钻削加工过程中麻花钻后刀面磨损过快问题,利用课题组研制的全自动振动攻丝钻孔机进行了正交对比钻削实验,探讨了高速钢麻花钻后刀面的磨损量与工艺参数及振动参数的关系,分析了影响后刀面过快磨损的关键因素,研究了麻花钻后刀面的过快磨损机理。结果表明:普通钻削时,按对主切削刃后刀面磨损影响因素的大小排序依次为切削速度、进给量和孔深;周向振动钻削时,在工艺参数中,进给量对麻花钻后刀面的磨损影响最大,切削速度次之;在振动参数中,周向振动的振幅影响最大,振动频率次之;麻花钻后刀面过快磨损的主要机理是磨粒磨损。According to rapid wear of the flank of twist drill in the cutting process of TC4 titanium alloy on the peripheral vibration drilling machine,based on orthogonal experiment,the relationship between the wear loss of the flank of high-speed twist drill and the process parameters and vibration parameters has been discussed,and the key factors of the rapid wear of twist drill flank have been analyzed.Also,the rapid wear mechanism of the flank face of twist drill has been studied with the peripheral vibration drilling machine developed by the research group.The results show that the cutting speed is the main factor,with feed being the second and hole depth the last in common drilling;however,the feed becomes the main factor,with cutting speed being the second;the amplitude of the peripheral vibration is the main factor,with the vibration frequency being the second on the rapid wear of the flank of the twist drill.Research shows that the rapid wear mechanism of the flank face of twist drill in peripheral vibration drilling is grain-abrasion.

关 键 词：TC4钛合金 麻花钻后刀面 周向振动钻削 磨粒磨损 

分 类 号：TG61[金属学及工艺—金属切削加工及机床] TH117.1[机械工程—机械设计及理论]