Influence of tool texture on friction and lubrication in strip reduction

Sulaiman, Mohd Hafis and Christiansen, Peter Leth and Bay, Niels (2017) Influence of tool texture on friction and lubrication in strip reduction. In: International Conference on the Technology of Plasticity, ICTP 2017, 17th-21st September 2017, Cambridge, United Kingdom.

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Abstract

Tool texturing is studied as a method to enhance lubrication and prevent the occurrence of galling. Strip reduction test tools manufactured with longitudinal, shallow pocket geometries oriented perpendicular to the sliding direction are tested. The pockets have small angles to the workpiece surface and varying distance. The experiments show an optimum distance between the pockets to exist that creates table mountain topography with flat plateaus and narrow pockets in between. If the flat plateaus are too narrow, an increase in drawing load and pick-up on the tool plateaus is observed. The same occurs for too wide plateaus. A theoretical friction model supports the experimental findings of an optimum distance between the pockets, where the contribution to friction by mechanical interlocking of the strip in the pockets is limited and lubrication of the plateaus is enhanced by micro-plasto-hydrodynamic lubrication.

Item Type:	Conference or Workshop Item (Invited Papers)
Additional Information:	9398/85685
Uncontrolled Keywords:	Textured tool surface; lubricant entrapment; mechanical interlocking; friction; strip reduction; ironing
Subjects:	T Technology > TS Manufactures > TS200 Metal manufactures. Metalworking
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering Kulliyyah of Engineering
Depositing User:	Dr Mohd Hafis Sulaiman
Date Deposited:	14 Dec 2020 16:18
Last Modified:	14 Dec 2020 16:18
URI:	http://irep.iium.edu.my/id/eprint/85685

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