Experimental investigation of nanofluid lubrication on surface roughness under MQL aluminum alloy 6061-T6 series in drilling

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL Industrial Lubrication and Tribology Pub Date : 2024-07-02 DOI:10.1108/ilt-01-2024-0021

Ehsan MirHosseini, Seyed Ali Agha Mirjalily, Amir Javad Ahrar, Seyed Amir Abbas Oloomi, Mohammad Hasan Zare

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Abstract

Purpose

This study aims to investigate the impact of varying the number of minimum quantity lubrication (MQL) nozzles, wind pressure, spindle speed and type of lubrication on surface roughness, fatigue life and tool wear in the drilling of aluminum alloy 6061-T6.

Design/methodology/approach

The effect of using different lubricants such as palm oil, graphene/water nanofluid and SiO₂/water in the MQL method was compared with flood and dry methods. The lubricant flow and feed rate were kept constant throughout the drilling, while the number of nozzles, wind pressure and spindle speed varied. After preparing the parts, surface roughness, fatigue life and tool wear were measured, and the results were analyzed by ANOVA.

Findings

The results showed that using MQL with four nozzles and graphene/water nanofluid reduced surface roughness by 60%, followed by SiO₂ nanofluid at 56%, and then by palm oil at 50%. Increasing the spindle speed in MQL mode with four nozzles using graphene nanofluid decreased surface roughness by 52% and improved fatigue life by 34% compared to the dry mode. SEM results showed that tool wear and deformation rates significantly decreased. Increasing the number of nozzles caused the fluid particles to penetrate the cutting area, resulting in improved tool cooling with lubrication in all directions.

Originality/value

Numerous attempts have been made worldwide to eliminate industrial lubricants due to environmental pollution. In this research, using nanofluid with wind pressure in MQL reduces environmental impacts and production costs while improving the quality of the final workpiece more than flood and dry methods.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-01-2024-0021/

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纳米流体润滑对 MQL 条件下 6061-T6 系列铝合金钻孔表面粗糙度的实验研究

设计/方法/途径在 MQL 方法中使用棕榈油、石墨烯/水纳米流体和 SiO2/水等不同润滑剂的效果与水浸法和干法进行了比较。在整个钻孔过程中，润滑剂流量和进给量保持不变，而喷嘴数量、风压和主轴转速则各不相同。结果表明，使用四个喷嘴和石墨烯/水纳米流体的 MQL，表面粗糙度降低了 60%，其次是 SiO2 纳米流体，降低了 56%，然后是棕榈油，降低了 50%。在使用石墨烯纳米流体的四喷嘴 MQL 模式下提高主轴转速，与干模式相比，表面粗糙度降低了 52%，疲劳寿命提高了 34%。扫描电镜结果表明，刀具磨损和变形率明显降低。喷嘴数量的增加使流体颗粒渗透到切削区域，从而改善了刀具冷却效果，并实现了全方位润滑。在这项研究中，在 MQL 中使用带风压的纳米流体可减少对环境的影响，降低生产成本，同时比水浸法和干法更能提高最终工件的质量。同行评议本文的同行评议历史见：https://publons.com/publon/10.1108/ILT-01-2024-0021/。

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来源期刊

Industrial Lubrication and Tribology 工程技术-工程：机械

CiteScore

3.00

自引率

18.80%

发文量

129

审稿时长

1.9 months

期刊介绍： Industrial Lubrication and Tribology provides a broad coverage of the materials and techniques employed in tribology. It contains a firm technical news element which brings together and promotes best practice in the three disciplines of tribology, which comprise lubrication, wear and friction. ILT also follows the progress of research into advanced lubricants, bearings, seals, gears and related machinery parts, as well as materials selection. A double-blind peer review process involving the editor and other subject experts ensures the content''s validity and relevance.