Study on the Relationship between Root Metal Flow Behavior and Root Flaw Formation of a 2024 Aluminum Alloy Joint in Friction Stir Welding by a Multiphysics Field Model

Study on the Relationship between Root Metal Flow Behavior and Root Flaw Formation of a 2024 Aluminum Alloy Joint in Friction Stir Welding by a Multiphysics Field Model

In friction stir welding (FSW), many defects (such as kissing bond, incomplete penetration, and weak connection) easily occur at the root of the welded joint. Based on the Levy–Mises yield criterion of the Zener–Hollomon thermoplastic constitutive equation, a 3D thermal–mechanical coupled finite ele...

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Bibliographic Details
Main Authors: Jian Luo, Jiafa Wang, Hongxin Lin, Lei Yuan, Jianjun Gao, Haibin Geng
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Metals
Subjects:
friction stir welding
welding seam root
metal flow behavior
root flaw
pin length
Incomplete penetration
Online Access:https://www.mdpi.com/2075-4701/10/7/913

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