The effect of an auxiliary pulsing jet of cutting fluid on cutting performance during hard turning with minimal fluid application
by R. Robinson Gnanadurai; A.S. Varadarajan
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 12, No. 4, 2012

Abstract: Hard turning with minimal fluid application using a high velocity pulsing jet is an emerging technique in cutting fluid minimisation to ensure a green environment on the shop floor. In the present investigation, an attempt is made to study the effect of an auxiliary pulsing jet of cutting fluid on the top side of the chip on cutting performance during turning of hardened AISI 4340 steel with minimal fluid application. Multicoated carbide inserts with sculptured rake face were used in this investigation. During minimal fluid application, a high velocity minimal pulsing jet of proprietary cutting fluid was applied at the tool work interface. In the present work, an auxiliary high velocity minimal pulsing jet of cutting fluid was applied at the top side of the chip in addition to the pulsing jet at the tool work interface. It was observed that the presence of an auxiliary jet of cutting fluid on the top side of the chip promoted chip curl with associated improvement in cutting performance. This technique holds promise for wide acceptance on the shop floor during hard turning with minimal fluid application or even during conventional turning on account of its simplicity and adoptability.

Online publication date: Sat, 23-Aug-2014

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