Volume 36, Issue 4 (Journal of Advanced Materials-Winter 2018)
2018, 36(4): 105-116 |
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Pakmanesh M R, Shamanian M, Asghari S. Analysis of Pulsed Laser Welding Parameters Effect on Weld Geometry of 316L Stainless Steel using DOE. Journal of Advanced Materials in Engineering (Esteghlal) 2018; 36 (4) :105-116
URL: http://jame.iut.ac.ir/article-1-848-en.html
URL: http://jame.iut.ac.ir/article-1-848-en.html
1.Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran. , mr.pakmanesh@ma.iut.ac.ir
Abstract: (7790 Views)
In the present study, the optimization of pulsed Nd:YAG laser welding parameters was done on a lap-joint of a 316L stainless steel foil in order to predict the weld geometry through response surface methodology. For this purpose, the effects of laser power, pulse duration, and frequency were investigated. By presenting a second-order polynomial, the above-mentioned statistical method was managed to be well employed to evaluate the effect of welding parameters on weld width. The results showed that the weld width at the upper, middle and lower surfaces of weld cross section increases by increasing pulse durationand laser power; however, the effects of these parameters on the mentioned levels are different. The effect of pulse duration in the models of weld upper, middle and lower widths was calculated as 76, 73 and 68%, respectively. Moreover, the effect of power on theses widths was determined as 18, 24 and 28%, respectively. Finally, by superimposing these models, optimum conditions were obtained to attain a full penetration weld and the weld with no defects.
Keywords: Pulsed laser welding, Weld geometry, Response surface methodology, Bipolar plate, Fuel cell.
Type of Study: Research |
Subject:
Welding and joining
Received: 2016/11/28 | Accepted: 2017/05/23 | Published: 2018/02/28
Received: 2016/11/28 | Accepted: 2017/05/23 | Published: 2018/02/28
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