The Effects of Friction and Lubrication on Multipass Hot Deformation

S. Funahashia; Eric J. Palmiere

doi:10.4028/www.scientific.net/AMR.89-91.745

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 89-91The Effects of Friction and Lubrication on...

The Effects of Friction and Lubrication on Multipass Hot Deformation

Abstract:

Plane strain compression tests have been carried out to investigate the variation of friction coefficient for the ferritic stainless steel, AISI 430, during single and multi pass hit deformation using glass lubricant and BN. A graphical method has been employed to evaluate the friction coefficient. It is found that the friction coefficient declines as strain increases under slip friction conditions with glass lubricant. On the contrary, under partial sticking friction condition with BN, the friction coefficient increases as strain increases. Furthermore, the variation of the friction coefficient on multipass hit is almost identical with single hit until the second pass, but the value of the friction coefficient on the third pass is slightly higher than that observed following single pass deformation.

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Periodical:

Advanced Materials Research (Volumes 89-91)

Pages:

745-750

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.89-91.745

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Online since:

January 2010

Authors:

S. Funahashia, Eric J. Palmiere

Keywords:

Friction, Hot Deformation, Lubrication, Plane Strain Compression Test

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References

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