Friction influence on the AA6060 aluminium alloy formability

Friction influence on the AA6060 aluminium alloy formability

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Using a finite element calculation code, this work analyses the influence of friction during a stamping test conducted on the AA6060 aluminium-based alloy. The study focuses on phenomena happening when the sheet necking appears. This condition, based on the Hill�s localized necking theory and the Sw...

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Bibliographic Details
Main Authors: Costanzo Bellini, Gillo Giuliano, Luca Sorrentino
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2019-07-01
Series:Frattura ed Integrità Strutturale
Subjects:
AA6060 aluminium alloy
Forming process
Friction influence
Formability limit curve
Online Access:https://www.fracturae.com/index.php/fis/article/view/2530/2595
Description
Summary:Using a finite element calculation code, this work analyses the influence of friction during a stamping test conducted on the AA6060 aluminium-based alloy. The study focuses on phenomena happening when the sheet necking appears. This condition, based on the Hill�s localized necking theory and the Swift�s diffuse necking theory, is dependent on the material hardening index. This work shows that the punch stroke at the necking condition point is maximum when the main strain measured on the sheet surface is unbalanced and close to a balanced biaxial tension condition.
ISSN:1971-8993

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