A novel methodology to characterize tool-chip contact in metal cutting using partially restricted contact length tools

Ortiz-de-Zarate, Gorka; Madariaga, Aitor; ARRAZOLA, PEDRO JOSE

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Title

A novel methodology to characterize tool-chip contact in metal cutting using partially restricted contact length tools

xmlui.dri2xhtml.METS-1.0.item-contributorOtherinstitution

https://ror.org/024mrxd33

Version

http://purl.org/coar/version/c_ab4af688f83e57aa

Rights

Access

http://purl.org/coar/access_right/c_16ec

URI

https://hdl.handle.net/20.500.11984/5270

Publisher’s version

https://doi.org/10.1016/j.cirp.2021.03.002

Published at

CIRP Annals Available online 6 April 2021. In Press, Corrected Proof

Keywords

Friction
Machining
Tribology
Temperature

Abstract

A novel methodology to map the friction and normal stress distribution on the rake face using Partially Restricted Contact Length Tools in orthogonal cutting tests is proposed. The influence of cutting speed, feed and coatings on tool-chip friction when machining AISI 1045 is analysed. The results demonstrate that the new methodology can replace the more difficult to use and less robust split-tool method. They confirm two clearly different contact zones: i) the sticking region, governed by the shear flow stress of the workpiece and ii) the sliding region, where the friction coefficient is higher than 1. [-]