Journal
TRIBOLOGY INTERNATIONAL
Volume 153, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2020.106582
Keywords
Surface integrity; Titanium; Tool wear; Tribological aspects; Turning
Categories
Funding
- China Post-Doctoral Science Foundation [2019TQ0186]
- National Natural Science Foundation of China [51922066]
- Major Projects of National Science and Technology [2019ZX04001031]
- Natural Science Outstanding Youth Fund of Shandong Province [ZR2019JQ19]
- National Key Research and Development Program [2018YFB2002201]
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The research on turning Ti-6Al-4V using N2+MQL cooling technique showed promising results in reducing coolant consumption, achieving smooth surface quality, minimizing tool wear and cutting energy, making it a valuable method for industrial application.
In this work, sustainable hybrid cryogenic MQL cooling/lubrication techniques viz. Banque- Hilsch Vortex tube plus MQL (RHVT + MQL), liquid nitrogen plus minimum quantity lubrication (N2+MQL), and liquid nitrogen (N2) are presented for turning Ti-6Al-4V utilizing CVD coated carbide insert. The tool wear, surface roughness, micro-hardness, specific cutting energy, and chip morphology are considered under sustainable cooling conditions and compared with the dry condition. The outcome revealed that the N2+MQL reduced the tons of annual coolant consumption attaining smooth surface quality, minimum built-up-edges of chips, and tool wear. Besides, minimum specific cutting energy and surface hardness achieved under N2+MQL among all cooling conditions. This endeavor is peculiar integrating sustainability and machining perspective under advanced cooling techniques for industrial application of Ti-6Al-4V.
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