Guangdong Provincial Engineering Research Center for Special Welding Technology and Equipment School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510640 People''s Republic of China;
Guangdong Provincial Engineering Research Center for Special Welding Technology and Equipment School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510640 People''s Republic of China;
Guangdong Provincial Engineering Research Center for Special Welding Technology and Equipment School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510640 People''s Republic of China;
Guangdong Provincial Engineering Research Center for Special Welding Technology and Equipment School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510640 People''s Republic of China;
Guangdong Provincial Engineering Research Center for Special Welding Technology and Equipment School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510640 People''s Republic of China;
Keyhole tungsten inert gas(K-TIG)welding; Vision-based investigation; Dynamic keyhole profile; Dynamic weld pool profile;