Functionally Graded Nano-coatings for Dry Machining

本项目旨在研究一种用于刀具的超晶格涂层的沉积和性能，以确定多层涂层用于干式加工的有效性。目的是开发一种方法，用于定制设计，评估和制造具有理想性能的涂料，用于特定的干式加工应用。该研究计划包括TiN/Si3N4涂层过程的建模和实验测试，以及所得涂层的物理特性。对纳米涂层的疲劳和断裂行为进行建模，研究切削过程中形成的温度场对寿命预测的影响。将进行干式加工实验，以确定实际温度场，以验证切削系统建模和纳米涂层刀具的寿命性能。主要研究人员将带来材料科学与工程、机械工程和工程力学方面的专业知识，以解决涂层开发和性能的复杂问题。这个跨学科项目包括三个系的研究生和本科生课程的教育部分，以及高中生的外展部分。

This project is to investigate the deposition and performance of a superlattice coating for cutting tools to determine the effectiveness of the multilayer coating for dry machining. The intent is to develop a method for custom designing, evaluating, and manufacturing coatings with desirable properties for specific dry machining applications. The research plan includes modeling and experimental testing of the coating process for TiN/Si3N4, as well as the physical characterization of the resulting coatings. The fatigue and fracture behavior of the nano-layer coatings will be modeled to study the effects of the temperature field established in the cutting process upon the life prediction. Dry machining experiments will be conducted to determine the actual temperature field for validation of the cutting system modeling and the life performance of the nano-coated tools. The principal investigators will bring expertise in materials science and engineering, mechanical engineering, and engineering mechanics to address the complex issues of the coating development and performance. The interdisciplinary project includes both an educational component for graduate and undergraduate curricula in three departments as well as an outreach component for high school students.