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The study aims to evaluate the machinability of Ti-6Al-4V titanium alloy during CNC turning under different cooling conditions.

August 9, 2026Open Access

Machinability Investigation of Ti-6Al-4V Titanium Alloy during CNC Turning Under Dry, Wet, and Minimum Quantity Lubrication Conditions: A Taguchi L16 and ANOVA-Based Multi-Response Optimisation Study

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Randomized trial investigates machinability outcomes in Ti-6Al-4V, suggesting MQL improves performance.

The study aims to evaluate the machinability of Ti-6Al-4V titanium alloy during CNC turning under different cooling conditions.
Systematic experimental investigation using Taguchi L16 orthogonal array with four factors: cutting speed, feed rate, depth of cut, and cooling method.
Parameters measured include surface roughness, tool flank wear, and cutting temperature under dry, wet, and MQL conditions.
Analysis of variance (ANOVA) used to identify the dominant factors affecting machinability.
Optimal settings with Vc = 120 m/min, f = 0.10 mm/rev, ap = 0.3 mm, MQL lead to Ra = 1.21 µm and VB = 0.092 mm.
MQL demonstrates superior performance over dry and wet machining for surface roughness and flank wear.
ANOVA indicates cutting speed as the most significant factor affecting machining performance with a 42.8% contribution.

R. Panchal (2026) studied this question.

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