Investigation of Factors Affecting Friction Stir Welding of Polyethylene by ANOVA Analysis

Mustafa Kemal BİLİCİ; Ahmet İrfan YUKLER; Memduh KURTULMUS; İlyas  KARTAL

doi:10.5755/j02.ms.27591

Authors

Mustafa Kemal BİLİCİ Marmara University https://orcid.org/0000-0001-9724-448X
Ahmet İrfan YUKLER Nisantasi University
Memduh KURTULMUS Marmara University https://orcid.org/0000-0001-6525-232X
İlyas KARTAL Marmara University https://orcid.org/0000-0001-9677-477X

DOI:

https://doi.org/10.5755/j02.ms.27591

Keywords:

friction stir welding (FSW), shoulder-pin diameter, tensile strength, ANOVA analysis, optimization, welding of polymer

Abstract

The variables that are effective in joining high density polyethylene sheets by friction stir welding (FSW) have been investigated. In order to understand the effects of welding parameters, using Taguchi optimization, tool rotation speed, feed rate, shoulder diameter and pin diameter values were selected in a wide range. The results obtained with Taguchi optimization method were evaluated according to the highest / the best signal-noise ratio. Macro photographs taken cross-sectional view taken the weld seam, SEM images and hardness measurements were used to evaluate. As a result of the evaluation, the accuracy of the optimization was found to be approximately 96 %. As a result, feed rate and shoulder diameter were determined as the most effective parameter affecting the welding quality and welding performance. These two parameters (shoulder diameter and feed rate) have found to effect of approximately 65 % on tensile strength, weld quality and hardness. Finally, it has obtained that the most effective welding parameter was the shoulder diameter with 40.81 %.