Prof. Changjun Chen received his PhD in Engineering from the Institute of Metal Research, Chinese Academy of Sciences. He was an associate professor at the School of Materials and Metallurgy, Wuhan University of Science and Technology from 2007 to 2011, and a visiting scholar at the Department of Mechanical Engineering, School of Engineering, Columbia University, USA from 2013 to 2014. He is currently a professor at the School of Mechanical and Electrical Engineering, Soochow University. He was awarded the title of “333” Talent in 2016, the title of Provincial Double Innovation Talent in 2017, and the title of Suzhou City High-level Talent in 2013. He is currently a member of the National Standards Committee for Additive Manufacturing, a member of the IEEE International Standards Committee, an expert in the review of national major special projects on additive manufacturing and laser manufacturing, Secretary-General of the Yangtze River Delta G60 Laser Industry Innovation Alliance, Secretary-General of the Jiangsu Laser Industry Development Strategic Alliance, Deputy Director of the Surface Engineering Equipment Committee, and a member of the Laser Processing Committee of the Chinese Optical Society. His main research directions include laser additive manufacturing and additive remanufacturing, laser cleaning, laser welding, welding with dissimilar materials, and surface strengthening and remanufacturing of blades for two aircrafts (aero-engines and gas turbines).