采用有限元法对AA6061-T6铝合金搅拌摩擦焊接过程进行建模与仿真

Q2 Materials Science

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI:10.5267/j.esm.2022.2.001

Muleta Tiki Lemi, E. M. Gutema, Mahesh Gopal

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引用次数: 2

摘要

搅拌摩擦焊(FSW)是一种通过摩擦产生热量的焊接工艺。塑性变形、非线性材料运动、工具到结构的演化摩擦以及摩擦和塑性变形产生的热量都对FSW工作产生影响。本文基于COMSOL®软件，采用有限元方法模拟了AA6061-T6铝合金在FSW过程中的热力学特性。创建了一个概念模型来解释热分析和结构分析。结果表明，随着轴向力的增大，顶、底表面温度升高，但沿垂直于焊缝方向的方向温度降低。在工件可接受的诱导温度范围内，随着前向焊接速度的升高，整体温度降低，而轴向力和转速保持稳定。

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Modeling and simulation of friction stir welding process for AA6061-T6 aluminum alloy using finite element method

Friction Stir Welding (FSW) is a process of welding materials that generates heat through friction. Plastic deformation, nonlinear material movement, tool-to-structural evolution friction, and heat production from friction and plastic deformation all have an impact on FSW operation. In this paper, thermo-mechanical characteristics of aluminum alloy AA6061-T6 during the FSW process were simulated based on COMSOL® software using a finite element approach. A conceptual model was created to interpret the thermal and structural analyses. According to the obtained results, the temperature rises on the top and bottom surfaces as the axial force increases but decreases along the line perpendicular to the weld direction. The overall temperature decreases as the forward welding speed rises within the acceptable induced temperature range of the workpiece, while the axial force and rotational speeds stay stable.

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来源期刊

Engineering Solid Mechanics Materials Science-Metals and Alloys

CiteScore

3.00

自引率

0.00%

发文量

期刊介绍： Engineering Solid Mechanics (ESM) is an online international journal for publishing high quality peer reviewed papers in the field of theoretical and applied solid mechanics. The primary focus is to exchange ideas about investigating behavior and properties of engineering materials (such as metals, composites, ceramics, polymers, FGMs, rocks and concretes, asphalt mixtures, bio and nano materials) and their mechanical characterization (including strength and deformation behavior, fatigue and fracture, stress measurements, etc.) through experimental, theoretical and numerical research studies. Researchers and practitioners (from deferent areas such as mechanical and manufacturing, aerospace, railway, bio-mechanics, civil and mining, materials and metallurgy, oil, gas and petroleum industries, pipeline, marine and offshore sectors) are encouraged to submit their original, unpublished contributions.