Experimental Investigation of Minimum Quantity Lubrication Strategy during Machining of Ti6Al4V Alloy

Authors Abstract
Content
The experimental investigation analyzed the performance of three machining conditions: dry machining, cryogenic machining, and cryogenic machining with minimum quantity lubrication (MQL) on tool wear, cutting forces, material removal rate, and microhardness. The outcome of this study presents valuable knowledge regarding optimizing conditions of turning operations for Ti6Al4V and understanding the machinability under cryogenic-based cooling strategies. Based on the experimentation, cryogenic machining with MQL is the most beneficial approach, as it reduces cutting force and flank wear with a required material removal rate. This strategy significantly enhances the machining efficiency and quality of Ti6Al4V under variable feed rates (0.05 mm/rev, 0.1 mm/rev, 0.15 mm/rev, 0.2 mm/rev, 0.25 mm/rev) where cutting velocity (120 m/min) and depth of cut (1 mm) are constant. The effects of the main cutting force, feed force, thrust force, material removal mechanism, flank wear, and microhardness on machining performance have been analyzed in this research work. It has been observed that higher cutting forces result in greater energy transferred to the workpiece material, leading to more effective material removal, and chip thickness is reduced in cryogenic plus MQL conditions compared to dry and cryogenic machining due to the excellent cushioning effect and reduced adhesion.
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DOI
https://doi.org/10.4271/05-18-03-0022
Pages
14
Citation
Misra, S., Kumar, Y., Paul, G., and Forouhandeh, F., "Experimental Investigation of Minimum Quantity Lubrication Strategy during Machining of Ti6Al4V Alloy," SAE Int. J. Mater. Manf. 18(3), 2025, https://doi.org/10.4271/05-18-03-0022.
Additional Details
Publisher
Published
Mar 03
Product Code
05-18-03-0022
Content Type
Journal Article
Language
English