Rectification of Defects in Laser Welding Process of Aluminium Alloys |
Author(s): |
| C. Alagesan , Sri Ramakrishna Engineering College; C. Alagesan, Sri Ramakrishna Engineering College; S. Omprakasam, Sri Ramakrishna Engineering College; K. Bharathi Kannan, Sri Ramakrishna Engineering College; M. Deepak Raj, Sri Ramakrishna Engineering College |
Keywords: |
| Laser Welding, Porosity, Key Hole |
Abstract |
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In this paper, defects of laser beam welding of aluminium alloys has been studied in detail. The effects of the laser power and its density on the weld penetration are experimented. Spattering was leading to the formation of under weld beads is controlled by the inclining laser beam. Porosity is formed from bubbles created from the tip of keyhole at low welding speed or from the centre part of the keyhole at high laser density. A finite element analysis was also applied to enquire in the thermal history of autogenous laser welding process to connect the aluminium alloy. The formation of porosity and its mitigation during the laser welding of aluminium alloy in a joint configuration were enquired. The influence of the process parameters such as welding speed, laser power, surface treatment by cold plasma, and also shielding gas were studied. |
Other Details |
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Paper ID: IJSRDV4I80286 Published in: Volume : 4, Issue : 8 Publication Date: 01/11/2016 Page(s): 410-414 |
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