Assoc. Prof. Dr. Jabbar Gattmah was born in 1974 in Diyala, Iraq. He received his BS.c. in 1998 in Dies and Tools Engineering from Technical Engineering College, Baghdad, Iraq and his MS.c. in 2002 in Mechanical Engineering from the University of Technology, Baghdad, Iraq. Dr. Gattmah received his Ph.D. in 2017 in Mechanical Engineering from Ankara Yıldırım Beyazıt University. He worked in Ministry of Communications, Diyala Branch in 2002 for four years. He works in Ministry of higher education, University of Diyala, College of Engineering from 2006 until now. He taught several courses in mechanical and materials engineering . His researches focuses on Metal Forming Processes, Mechanical Properties of Materials, Dies and Tools, Materials Behavior, and Manufacturing Operations