机械科学与技术2017，Vol.36Issue(4)：592-597,6.DOI:10.13433/j.cnki.1003-8728.2017.0416
激光超声复合加工硬质合金的切削特性研究
Machinability of Tungsten Carbide with Assistance of Laser and Ultrasonic Vibration
摘要
Abstract
Sintered tungsten carbide was machined using CBN (Cubic boron nitride) tools under the assistance of laser heating and ultrasonic vibration.The variation characteristics of cutting force in the four cutting modes,including common cutting (CC),conventional ultrasonic vibration cutting (CUVC),ultrasonic elliptical vibration cutting (UEVC),laser and ultrasonic vibration combination cutting,were analyzed by means of the finite element analysis (FEA) method.The experiments were carried out on an ultra-precision lathe assisted by YAG laser equipment and self-developed ultrasonic vibration device.The precision cutting characteristics experiment of tungsten carbide with laser and ultrasonic vibration assistance were studied.The influence of the cutting parameters on the cutting force were studied via a series of contrast experiments.The results show that because of the softening of the workpiece material and the in terrupted cutting,the laser and ultrasonic vibration combination cutting can greatly reduce the cutting force while machinability of tungsten carbide can be remarkably improved.The experimental results suggest that the precision machining of tungsten carbide can be realized under certain optimized technological parameters,which will effectively cost for precision machining of some other hard and brittle materials.关键词
硬质合金/切削力/激光加热/超声振动Key words
tungsten carbide/cutting force/laser heating/ultrasonic vibration分类
矿业与冶金引用本文复制引用
段鹏,焦锋,牛赢,赵波..激光超声复合加工硬质合金的切削特性研究[J].机械科学与技术,2017,36(4):592-597,6.基金项目
国家自然科学基金项目(51075127)资助 （51075127）
