1. Department of Mechanical Engineering, Faculty of Engineering University of Malaya 50603 KUALA LUMPUR MALAYSIA
2. Centre of Advanced Manufacturing and Material Processing (AMMP Centre) University of Malaya 50603 KUALA LUMPUR MALAYSIA
3. School of Mechanical Engineering, Engineering Campus University of Science Malaysia, Gelugor 14300 PULAU PINANG MALAYSIA
4. Joining and Welding Research Institute Osaka University, Suita 567-0047 IBARAKI JAPAN