Direct evaluation of coulomb friction coefficient from sheet strip stretch test on a cylinder surface

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2014

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Trans Tech Publications Ltd

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Manufacturing Engineering
(2003)
Opened in 2003 with the aim to graduate experts in the field of machine-production, our Department is among the firsts in our country to offer education in English. The Manufacturing Engineering program focuses on the manufacturing technologies that shape materials from raw materials to final products by means of analytical, experimental and numerical modeling methods. First Manufacturing Engineering Program to be engineered by Müdek, our department aims to graduate creative and innovative Manufacturing Engineers that are knowledgeable in the current technology, and are able to use production resources in an effective and sustainable way that never disregards environmental facts. As the first Department to implement the Cooperative Education Program at Atılım University in coordination with institutions from the industry, the Manufacturing Engineering offers a practice-oriented approach in education with its laboratory infrastructure and research opportunities. The curriculum at our department is supported by current engineering software, and catered to creating engineers equipped to meet the needs of the production industry.

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Abstract

Knowing the flow curve of a sheet metal, strain distribution on a sheet strip may be used to roughly but quickly evaluate the Coulomb friction coefficient. Strain distribution on the strip being stretched on a cylindrical surface of interest may be measured by an optical strain measurement system. This could be used to estimate the stresses on the specimen. The capstan equation is then used to roughly evaluate the coefficient of friction acting between the sheet strip and the cylindrical surface. Validation of the approach is done using the simulation of the process. The corresponding experiments can be performed easily on a sheet metal testing device equipped with an optical strain measurement system, which is commonly used for the experimental evaluation of FLCs. © (2014) Trans Tech Publications, Switzerland.

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Keywords

Finite Element Analysis, Friction Coefficient, Sheet Metal Forming

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Source

Advanced Materials Research -- 6th International Conference on Tribology in Manufacturing Processes and Joining by Plastic Deformation, ICTMP 2014 -- 22 June 2014 through 24 June 2014 -- Darmstadt -- 106224

Volume

966-967

Issue

Start Page

242

End Page

248

URI

https://doi.org/10.4028/www.scientific.net/AMR.966-967.242
 https://hdl.handle.net/20.500.14411/3744

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Scopus