三台阶钻超声辅助钻削 Ti6Al4V 的加工质量研究  

Study on Machining Quality of Ti6Al4V by Ultrasonic-assisted Drilling with a Three-step Drill

作　　者：陈国庆 王大中[1] Chen Guoqing;Wang Dazhong(Shanghai University of Engineering Science,Shanghai 201600,China)

机构地区：[1]上海工程技术大学,上海市201600

出　　处：《农业装备与车辆工程》2023年第2期109-112,共4页Agricultural Equipment & Vehicle Engineering

摘　　要：常用钻头在钻削钛合金时容易出现切屑缠绕钻头,为了提升钻孔质量,研究采用麻花钻与三台阶钻头进行常规钻削与超声辅助钻削。结果表明,因为良好的断屑性能和低的温度,三台阶钻头超声辅助钻削钛合金具有更好的加工性能。此外,改进后钻头可获得更完整的孔内壁,并改善了表面质量。研究发现,三台阶钻超声辅助钻削可以有效地断屑。In order to improve drilling quality,twist drill and three-step drill are used in this study for conventional drilling and ultrasonic assisted drilling.The results show that the ultrasonic assisted drilling of titanium alloy with three-step bit has better machinability because it has good chip breaking performance and low temperature.In addition,the improved bit can obtain a more complete hole inner wall and improve the surface quality.It is found that ultrasonic assisted drilling with three-step drill can effectively break chips.

关 键 词：钻削 钛合金 刀具结构 超声辅助钻削 切屑断裂 有限元仿真 

分 类 号：TG52[金属学及工艺—金属切削加工及机床]