Zhou Peng, born in 1979. He is a Ph. D candidate in Mechanical Engineering Department of Dalian University of Technology. He also received his M.S. degree from Beijing Institution of Technology in 2005 and B.S. degree from Beijing Union University in 2002. His research in- terests include the evaluation method of the carbon/carbon (C/C) composite and the machining technology of C/C composite. E-mail: zp9871223 @163.com