Collaborative Research: Design and Fundamental Understanding of Advanced Minimum Quantity Lubrication (MQL) Machining using Nanolubricants

该合作研究项目的目的是研究与有机分子结合的活性二硫化钼润滑剂纳米颗粒的变形机制。塑性变形，从而形成一个摩擦膜，将研究特别是在微量润滑磨削和深孔钻。寻求这一目标的技术途径首先需要研究与加工中使用的基础流体相容的活性润滑剂纳米颗粒的物理、化学和摩擦学性质。在本研究的下一阶段中，将研究纳米润滑剂配方的浓度和数量、切削深度、速度和加工道数的作用。将使用各种原位和非原位参数（如切削力、刀具磨损、工件的表面光洁度和完整性、纳米和微米结构、摩擦膜的位置、分布和化学性质以及碎屑的大小和化学性质）对结果进行实验和部分理论评估，以研究摩擦膜在降低切削力中的作用，增加刀具寿命并提供更好的加工工件表面质量。此外，一项研究将致力于了解集成在纳米颗粒中的油分子的瞬时蒸发及其随后作为加工界面处热传递的有效载体的作用。这项研究的广泛影响是促进再循环润滑系统的更换，这是性能变化和显著废物流的来源。此外，预计在最苛刻的加工应用中，将以低成本节省能源并提高生产率。此外，这项研究是一个例子，说明最近在美国对纳米制造的投资如何使传统的加工和制造业受益，以提高一系列基础设施相关制造业的生产率。在这种纳米技术中培训学生将是促进新一代创新的重要组成部分。

The objective of this collaborative research project is to study the mechanism of deformation of active molybdenum disulphide lubricant nanoparticles, integrated with organic molecules. The plastic deformation, and thus formation of a tribofilm, will be studied particularly when introduced in minimum quantity lubrication grinding and deep hole drilling. The technical approach to seek the objective necessitates first to study physical, chemical and tribological properties of active lubricant nanoparticles compatible with base fluids used in machining. In the next phase of this study the role of concentration and quantity of nanolubricant formulations, depth of cut, speed and number of machining passes will be investigated. The outcome will be assessed experimentally and partly theoretically using various in situ and ex situ parameters such as cutting forces, tool wear, surface finish and integrity of the workpiece, nano and micro structure, location, distribution and chemistry of the triobofilm, and size and chemistry of debris for studying the role of tribofilm in reducing cutting forces, increasing tool life and providing better surface quality of the machined workpiece. Additionally, one study will address understanding the transient evaporation of oil molecules integrated in nanoparticles and their subsequent role as an effective vehicle for heat transfer at the machining interface.The broad impact of this research is in facilitating the replacement of recirculating lubrication systems, which are sources of performance variation and significant waste streams. In addition, it is expected there will be energy savings and an increase in productivity at low cost in the most demanding machining applications. Further, this research is an example of how recent investment in nanomanufacturing in the United States can significantly benefit traditional machining and manufacturing industries to increase productivity in a range of infrastructure-related manufacturing industries. Training students in this nanotechnology will be an important component in the facilitation of a new generation of innovation.