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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 国际磨粒技术学会（International Committee of Abrasive Technology, ICAT）委员，中国机械工程学会极端制造分会副主任、生产工程分会常务委员、微纳米制造技术分会常务委员，中国机械工程学会生产工程分会磨粒加工技术专业委员会副主任、切削加工专业委员会常委委员、精密工程与微纳技术专业委员会常委委员，中国机械工程学会特种加工分会超声加工技术委员会副主任，中国机械工程学会摩擦学分会微纳制造摩擦学专业委员会常务委员，中国机械工业金属切削刀具协会切削先进制造技术研究会常务理事、对外学术交流工作委员会副主任、切削先进制造技术研究会自动化加工技术与系统委员会副主任。
性别：男
毕业院校：西北工业大学
学位：博士
所在单位：机械工程学院
学科：机械制造及其自动化. 机械电子工程. 航空宇航制造工程
办公地点：机械工程学院7191
电子邮箱：kangrk@dlut.edu.cn
Analysis of material removal behavior in ultrasonically assisted scratching of RB-SiC from energy aspects
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论文类型：期刊论文
发表时间：2018-10-01
发表刊物：INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
收录刊物：SCIE
卷号：98
期号：9-12
页面范围：2257-2270
ISSN号：0268-3768
关键字：Ultrasonic-assisted grinding; Ultrasonic-assisted scratching; Scratching force; Topography data; Energy
摘要：With its outstanding features such as low machining loads and high material removal rate, ultrasonic-assisted grinding (UAG) has been generally accepted as an effective processing technique for hard and brittle materials. To improve UAG performance, the basic mechanisms of material removal need further investigation. This study investigates the material removal ability of both ultrasonic-assisted scratching (UAS) test and conventional scratching (CS) test by analogy with the behavior of single-grain during UAG and conventional grinding (CG), in an attempt to quantitatively reveal the coupling relationship between the vibration parameters and process parameters. With the accuracy setting ensured by acoustic emission sensors, the study used a Rockwell indenter as the scratching tool in scratching tests with various cutting depths and vibration amplitudes. The scratching forces and computer-processed topographic data were analyzed from an energy aspect. Results showed that UAS had better material removal ability and lower scratching forces. The study further demonstrates the improvement that ultrasonic vibration brought to the energy input during the scratching process, which is considered the key factor to the UAS effectiveness regarding material removal.