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Effect of Friction and Lubrication on Formability of AA5182 Alloy in Hydroforming of Square Cups

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Abstract:

nfluence of friction and lubrication on formability of an aluminium alloy (AA5182) in hydroforming of square cups has been studied experimentally and numerically. Three friction conditions were created at the blank-die interface using hydraulic oil, Teflon and dry condition (no lubrication). Maximum thinning and minimum radius at the cup corners were taken as criteria for formability evaluation. Formability improved to a great extent with Teflon sheet as the lubricant. Lower friction allowed better draw-in of the material with higher uniformity of strain distribution and the maximum pressure that the material can sustain has significantly increased.

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Periodical:

Materials Science Forum (Volume 762)

Pages:

621-626

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.762.621

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Online since:

July 2013

Authors:

Bharatkumar Modi, Digavalli Ravi Kumar

Keywords:

Aluminium Alloy, Formability, Friction, Numerical Analysis, Sheet Hydroforming

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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