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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Crater wear vs time at a feed rate of fn = 0.15 mm/rev and a cutting speed of vc = 45, 60, 90 and 115 m/min. Above 2 min the combination fn = 0.15 mm/rev and vc = 115 m/min results in extensive plastic deformation and macroscopic cracking.