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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 441Effect of Normal Load and Bulk Strain on Real Area...

Effect of Normal Load and Bulk Strain on Real Area of Contact in Aluminum Sheet Forming

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Abstract:

Friction is one of the key parameters in sheet metal forming. During forming process, the surface of aluminum sheet undergoes flattening and roughening, leading to changes in real area of contact and therefore friction between tool and workpiece. Predicting real area of contact based on the loading condition is fundamental to model friction in a forming process. For this purpose, we designed a setup to conduct the combined normal load – bulk strain experiments on two different aluminum grades. The real area of contact for each sample was measured and characterized using the surface height probability density distribution. The results show that strain can significantly affect the real area of contact in both A6016 and A5182 grades.

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Periodical:

Defect and Diffusion Forum (Volume 441)

Pages:

3-9

DOI:

https://doi.org/10.4028/p-3R47fk

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Online since:

March 2025

Authors:

Farshid Jalali Moghadas*, Matthijn de Rooij, Ton van den Boogard, Javad Hazrati

Keywords:

Aluminum, Flattening, Real Area of Contact, Sheet Metal Forming

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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