Dr. Chuan Song Wu is a Professor of the Institute for Materials Joining at Shandong University in China. He has performed research at the University of Wisconsin-Milwaukee in USA (Visiting Scholar, 1986-1987), Technical University of Berlin in Germany (Humboldt Scholar, 1993-1995, 2004), Osaka University in Japan (Guest Professor, 1995-1996), and University of Hannover in Germany (Visiting Professor, 1999,2002). Since 2002, he visited University of Kentucky in USA five times for conducting joint research. He is member of the Editorial Boards of Transactions of the China Welding Institution, Welding and Joining, Electric Welding Machine, China Welding Industry and Frontiers of Materials Science in China. His current research deals with modeling, sensing and control of welding processes. He has authored and coauthored more than 137 peer-reviewed journal papers, two books and three book chapters. Dr. Wu is a member of the standing council of Chinese Welding Society, the chairman of Computer-Aided Welding Commission of Chinese Welding Society, and a member of the American Welding Society. Because of his outstanding achievements in welding science and technology, he was recognized as a Humboldt Scholar in Germany, and has collected a number of honors from the Chinese Government.