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Development and Performance Evaluation of Eco-Friendly POSS-Containing MQL Oil Coolant for Drilling Processes

1
Department of Mechanical Engineering, Changwon National University, 20 Changwondae-ro, Uichang-gu, Changwon-si, Gyeongsangnam-do 51140, Korea
2
Department of Chemistry, Changwon National University, 20 Changwondae-ro, Uichang-gu, Changwon-si, Gyeongsangnam-do 51140, Korea
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(8), 2751; https://doi.org/10.3390/app10082751
Received: 16 March 2020 / Revised: 12 April 2020 / Accepted: 13 April 2020 / Published: 16 April 2020
(This article belongs to the Section Mechanical Engineering)
Drilling work on Inconel, a well-known super-heat-resistant alloy, requires a significant quantity of cutting oil to prevent heat-induced abrasion and damage to the cutting tool, caused by the strength and toughness of the alloy. This high requirement of cutting oil, however, negatively affects the processing environment; therefore, minimum-quantity lubrication (MQL), an eco-friendly cutting-oil-supply method, is attracting attention. The conventional MQL method, however, has the disadvantage that an oil-mist is produced along with high-pressure air; hence, the mist is scattered in the air, making the application of the oil to the cutting point inefficient and rendering the cooling effect to be less than that in wet processing. In this study, therefore, an eco-friendly compound, polyhedral oligomeric silsesquioxane (POSS)—a nanostructured organic–inorganic hybrid material that exhibits better adhesion to materials than conventional MQL-specific oil and is resistant to the heat generated during drilling—was developed by adding POSS to the conventional MQL-specific oil, and the effects were verified. View Full-Text
Keywords: polyhedral oligomeric silsesquioxane (POSS); eco-friendly cutting oil; MQL; Inconel; drilling polyhedral oligomeric silsesquioxane (POSS); eco-friendly cutting oil; MQL; Inconel; drilling
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Park, K.B.; Shin, D.-S.; Cho, Y.T. Development and Performance Evaluation of Eco-Friendly POSS-Containing MQL Oil Coolant for Drilling Processes. Appl. Sci. 2020, 10, 2751.

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