Xifeng Fang，Ph.D. ，Professor. At present, I am engaged in teaching of mechanical engineering and researches in School of Mechanical Engineering,Jiangsu University of Science and Technology. I am Professor of Mechanical Engineering and M. A. Supervisor of Mechanical Engineering. I am also the full membership,Chinese Mechanical Engineering Society（CMES）,and the executive director,China University Society on Manufacturing Automation（CUSMA）. I have launched the studies of mechanics since 1990s. I have published more than 70 articles on some key journals such as China Mechanical Engineering, Chinese Journal of Mechanical Engineeringand Journal of Nanjing University of Aeronautics & Astronautics, and Journal of Mechanical Science and Technology and so on. I attended many international conferences on mechanical science and service science as key-note speaker. My current fields of interest include: 1) Studies of intelligent design and machining.2) Analysis of mechanical multi-body system kinematics and dynamics.3) Researches into the ONC(Open Number Control) machining technology.4) Digital manufacturing system and so on. The Courses for M.A students include: NC Machining Technology; Machining Process and Product Quality Computer Aided Control; Design and Analysis of the Experiment; Principal of Engineering Database.