Friction stir welding of AA2024-T3: development of numerical simulation considering thermal history and heat generation

被引：9

作者：

Amini, Cyrus ^{[1
]}

Hasanifard, Soran ^{[1
]}

Zehsaz, Mohammad ^{[1
]}

Jerez-Mesa, Ramon ^{[2
]}

Antonio Travieso-Rodriguez, J. ^{[2
]}

机构：

[1] Univ Tabriz, Mech Engn Dept, 29 Bahman Blvd, Tabriz 5166616471, Iran

[2] Univ Politecn Cataluna, Mech Engn Dept, Escola Engn Barcelona Est, Caner Eduard Maristany 10-12, Barcelona 1012, Spain

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2021年 / 117卷 / 7-8期

关键词：

Temperature-dependent friction; Friction stir welding; Frictional heat generated; MECHANICAL-PROPERTIES; TEMPERATURE DISTRIBUTION; PROCESS PARAMETERS; MODEL; MICROSTRUCTURE; PREDICTION; BEHAVIOR; ENERGY; FLOW;

D O I：

10.1007/s00170-021-07184-2

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes a finite element model implemented in ANSYS using Lagrangian formulation to assess heat generation and friction dynamics of a friction stir welding process on AA2024-T3 aluminum plates. For that aim, the model is enriched by estimating a temperature-dependent friction coefficient using theoretical relationships, and by considering a temperature-dependent multilinear isotropic hardening equation as a plasticity model representing the material. Both quantitative determinations are confirmed through experimental data collected on the real material. Finally, the contact conditions are modeled using the modified Coulomb criterion. The results of the model are in agreement with actual results observed on experimental applications. The study proves that the rotational speed of the tool is the most determinant factor in the results. As it rises, the friction-generated heat flow is higher. This study shows that the compressive stress-strain data in strain rate of 10s(-1) is a good approximation of the plasticity behavior of aluminum alloy during the friction stir welding.

引用

页码：2481 / 2500

页数：20

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