Pore Anisotoropy in Laser Welding of lotus-Type Porous Copper. Proceedings of Designing of Therfacial Structure in Advanced Materials and Their Joints, DIS'02, Edi. M.NAKA, Joining & Welding reserach Institute, Osaka Univ. and High Temperature Soc. of Japan, Osaka, Japan. 2002. 751-756
A mechanism of deep weld penetration in gas tungsten arc welding with activating flux. Proceedings of Inter. Welding/Joining Conf. Korea, Gyeongju, Korea, October 28-30 (2002). 2002. pp.76-81
Anode heating and melting in the argon GTA. Proceedings of Inter. Welding/Joining Conf. Korea, Gyeongju, Korea, October 28-30 (2002). 2002. pp.746-751
Friction Stir welding of Magnesium Alloys. International Welding/Joining Conference-Korea 2002, Edi. Y.H. Lee, Korean Welding Soc., Gyongju, Korea. 2002. 511-515 (CD-ROM)