Modeling and optimization of tool parameters in friction stir lap joining of aluminum using RSM and NSGA II

Q4 Materials Science

Welding International Pub Date : 2023-01-02 DOI:10.1080/09507116.2022.2164530

M. Akbari, Hossein Rahimi Asiabaraki

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引用次数: 10

Abstract

Abstract Friction stir welding (FSW) success depends heavily on the temperature and strain the FSW/FSP tool induces. This study examined the influence of FSW tool characteristics like shoulder and probe diameter and probe height on temperature, forces and failure load of welding of AA5083 alloy using the response surface methodology (RSM). The study’s setup consisted of three factors, three levels, and 17 experimental runs. In order to determine the welding temperature, a thermocouple was placed inside the samples. Also, the force during the process was measured using a fixture designed for this purpose. The generated model’s suitability at a 95% confidence level was assessed using an analysis of variance. Using RSM, a relationship was discovered between input parameters, including tool settings and output responses, such as temperature, force, and joint mechanical properties. This relationship was then used to discover the best process parameters using a hybrid multiobjective optimization. Hybrid multiobjective optimization recommends a probe diameter of 5.1 mm, a shoulder diameter of 17.63 mm, and a probe height of 3.86 mm as the optimum tool. This study discovered that the most important factors influencing temperature force and failure load were shoulder diameter, probe diameter, and probe height, respectively.

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基于RSM和NSGA-II的铝搅拌摩擦搭接工具参数建模与优化

摘要搅拌摩擦焊（FSW）的成功与否在很大程度上取决于FSW/FSP工具产生的温度和应变。本研究采用响应面法（RSM）研究了FSW工具特性（如肩部、探针直径和探针高度）对AA5083合金焊接温度、力和失效载荷的影响。该研究的设置包括三个因素、三个水平和17个实验运行。为了确定焊接温度，在样品内部放置了一个热电偶。此外，使用为此目的设计的夹具测量过程中的力。使用方差分析评估生成的模型在95%置信水平下的适用性。使用RSM，发现了输入参数之间的关系，包括刀具设置和输出响应，如温度、力和接头机械性能。然后使用这种关系来使用混合多目标优化来发现最佳工艺参数。混合多目标优化建议探头直径为5.1 mm，肩部直径17.63 mm，探头高度3.86 mm作为最佳工具。本研究发现，影响温度力和失效载荷的最重要因素分别是肩部直径、探针直径和探针高度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Welding International Materials Science-Metals and Alloys

CiteScore

0.70

自引率

0.00%

发文量

期刊介绍： Welding International provides comprehensive English translations of complete articles, selected from major international welding journals, including: Journal of Japan Welding Society - Japan Journal of Light Metal Welding and Construction - Japan Przeglad Spawalnictwa - Poland Quarterly Journal of Japan Welding Society - Japan Revista de Metalurgia - Spain Rivista Italiana della Saldatura - Italy Soldagem & Inspeção - Brazil Svarochnoe Proizvodstvo - Russia Welding International is a well-established and widely respected journal and the translators are carefully chosen with each issue containing a balanced selection of between 15 and 20 articles. The articles cover research techniques, equipment and process developments, applications and material and are not available elsewhere in English. This journal provides a valuable and unique service for those needing to keep up-to-date on the latest developments in welding technology in non-English speaking countries.