Volume 21, Issue 2, April 2016, Pages 301–309
K. Kalaiselvan1, A. Elango2, and NM. Nagarajan3
1 Department of Mechanical Engineering, Meenakshi Ramasamy Engineering College, Ariyalur, Tamilnadu, India
2 Vice Principal, Alagappa Chettiyar College of Engineering and Technology, Karaikudi, Tamilnadu, India
3 Professor (Retd), Department of Mechanical Engineering, National Institute of Technology, Calicut, Kerala, India
Original language: English
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Laser beam welding is a non-conventional welding process with high applicability to produce quality welds. An attempt is made to weld TI6AL4V (Ti) and AA2024 (Al) dissimilar sheet metal joints and studies have been made to analyze the structure in the weldment. Structural studies such as macrostructure and micro studies are undertaken. The extend of a metal mix in the fusion zone is also studied using Energy Dispersive Spectroscopy (EDS). Micro studies using Scanning Electron Microscope (SEM) reveal that higher weld speed brings grain refinement leading to the enhanced strength. SEM and EDS analysis further reveal that laser beam focusing from Ti side instead of Al side brings good quality weldment.
Author Keywords: Laser beam welding, Ti/Al, Weldment structure, SEM, EDS.
K. Kalaiselvan1, A. Elango2, and NM. Nagarajan3
1 Department of Mechanical Engineering, Meenakshi Ramasamy Engineering College, Ariyalur, Tamilnadu, India
2 Vice Principal, Alagappa Chettiyar College of Engineering and Technology, Karaikudi, Tamilnadu, India
3 Professor (Retd), Department of Mechanical Engineering, National Institute of Technology, Calicut, Kerala, India
Original language: English
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Laser beam welding is a non-conventional welding process with high applicability to produce quality welds. An attempt is made to weld TI6AL4V (Ti) and AA2024 (Al) dissimilar sheet metal joints and studies have been made to analyze the structure in the weldment. Structural studies such as macrostructure and micro studies are undertaken. The extend of a metal mix in the fusion zone is also studied using Energy Dispersive Spectroscopy (EDS). Micro studies using Scanning Electron Microscope (SEM) reveal that higher weld speed brings grain refinement leading to the enhanced strength. SEM and EDS analysis further reveal that laser beam focusing from Ti side instead of Al side brings good quality weldment.
Author Keywords: Laser beam welding, Ti/Al, Weldment structure, SEM, EDS.
How to Cite this Article
K. Kalaiselvan, A. Elango, and NM. Nagarajan, “Studies on weldment structure in Ti/Al dissimilar metal joints using Laser beam welding,” International Journal of Innovation and Scientific Research, vol. 21, no. 2, pp. 301–309, April 2016.
