《Kinematic view of toot life in rotary ultrasonic side milling of hard and brittle materials》.pdf

ARTICLE IN PRESS International Journal of Machine Tools Manufacture 50 (2010) 303–307 Contents lists available at ScienceDirect International Journal of Machine Tools Manufacture journal homepage: /locate/ijmactool Short Communication Kinematic view of tool life in rotary ultrasonic side milling of hard and brittle materials Hu Gong a,b, F.Z. Fang a,b,n, X.T. Hu a a State Key Laboratory of Precision Measuring Technology Instruments, Centre of MicroNano Manufacturing Technology, Tianjin University, Tianjin 300072, China b Tianjin MicroNano Manufacturing Tech. Co., Ltd, TEDA, Tianjin 300457, China a r t i c l e i n f o a b s t r a c t Article history: Experiments are conducted to study the mechanism of side milling in rotary ultrasonic machining Received 13 February 2009 (RUM). The study shows that RUM has less tool wear than grinding at the lateral direction of the cutter Received in revised form under the same conditions. The kinematics of diamond grits is employed for the theoretical analysis. 13 December 2009 In addition, by using slim diamond cutters, two different machining strategies are used to side mill a Accepted 16 December 2009 Available online 24 December 2009 microstructure and grooves on a semi-sphere. An improvement strategy of material removal rate (MRR) is also discussed based on the experimental study. Keywords: 2009 El