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Title: On the influence of workpiece material on friction in microforming and lubricant effectiveness
Authors: Taureza, Muhammad
Song, Xu
Castagne, Sylvie
Keywords: DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics
DRNTU::Engineering::Mechanical engineering::Kinematics and dynamics of machinery
Issue Date: 2014
Source: Taureza, M., Song, X., & Castagne, S. (2014). On the influence of workpiece material on friction in microforming and lubricant effectiveness. Journal of Materials Processing Technology, 214(4), 998-1007.
Series/Report no.: Journal of Materials Processing Technology
Abstract: The frictional behaviors between metal forming tool and three different metallic materials were evaluated using the modified T-Shape test. A mathematical function is proposed to describe the calibration curves for different friction coefficients. Round bars of copper, aluminum and silver of diameter 1 mm and length 5 mm were used as the workpieces to study the material influence on friction factor, m, during unlubricated microforming process through comparison between simulation and experimental results. Furthermore, various lubricants were used with the aluminum and copper to examine their performance in microforming. The results have shown that the workpiece materials not only determine the friction factor, m, during unlubricated microforming, but also influence the performance of lubricants. Lubricant can be completely ineffective and may not produce discernible friction reduction in microforming, unlike in conventional metal forming. By considering the influence of contact pressure on lubricant effectiveness, a novel pressure dependent frictional model and a lubricant evaluation method are proposed.
ISSN: 0924-0136
DOI: 10.1016/j.jmatprotec.2013.11.003
Rights: © 2014 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Materials Processing Technology, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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