Modeling and Optimizing the Hardness of the Melted Zone in Submerged Arc Welding Process Using Taguchi Method

Hamed Shahverdi Shahraki; Hamid Mozafari

doi:10.4028/www.scientific.net/AMM.763.47

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 763Modeling and Optimizing the Hardness of the Melted...

Modeling and Optimizing the Hardness of the Melted Zone in Submerged Arc Welding Process Using Taguchi Method

Abstract:

One of the important characteristics of weld quality, which is influenced by welding parameters, is the hardness of the melted zone (HMZ). In this paper, experiments were conducted by Taguchi experimental design and Minitab 14 statistical software, and the interaction of input parameters was not taken into account. After collecting data, the signal to noise ratio (S/N) was calculated to obtain optimal levels for all input parameters. Then, using analysis of variance (ANOVA), the significance level of (P) for each input parameter was determined and validated for the hardness of the melted area. The results show that current intensity, welding speed, arc voltage, nozzle distance from work piece and thickness of magnesium oxide nanoparticles had respectively the highest impact on the hardness of melted zone.

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Periodical:

Applied Mechanics and Materials (Volume 763)

Pages:

47-51

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.763.47

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Online since:

May 2015

Authors:

Hamed Shahverdi Shahraki*, Hamid Mozafari

Keywords:

Analysis of Variance, Hardness of Melted Zone, Optimization, Submerged Arc Welding, Taguchi Method

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