Journal
OPTICS AND LASER TECHNOLOGY
Volume 44, Issue 7, Pages 2020-2025Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2012.03.033
Keywords
Laser welding with filler wire; Taguchi method; Optimization techniques
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Funding
- National High Technology Research and Development Program of China [2009AA032516]
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In the present work, laser welding with filler wire was successfully applied to joining a new-type Al-Mg alloy. Welding parameters of laser power, welding speed and wire feed rate were carefully selected with the objective of producing a weld joint with the minimum weld bead width and the fusion zone area. Taguchi approach was used as a statistical design of experimental technique for optimizing the selected welding parameters. From the experimental results, it is found that the effect of welding parameters on the welding quality decreased in the order of welding speed, wire feed rate, and laser power. The optimal combination of welding parameters is the laser power of 2.4 kW, welding speed of 3 m/min and the wire feed rate of 2 m/min. Verification experiments have also been conducted to validate the optimized parameters. (c) 2012 Elsevier Ltd. All rights reserved.
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