Zhang Dehai, Male, born in 1973, doctor of engineering, Professor, Xi'an Jiaotong University. Main research fields: reverse engineering, advanced materials (additive manufacturing) forming process control, etc. In recent years, he has published more than 140 papers in domestic and foreign publications, including more than 20 SCI retrieval articles, 2 textbooks, 9 national invention patents, 5 provincial and ministerial projects, and 2 second prizes of Henan science and technology progress award. He is mainly responsible for the teaching of undergraduate courses such as principles and design of automata, introduction to mechanical engineering and 3D digital modeling and reverse engineering.