An Investigation of Machining Variables on Surface and Subsurface Quality of Inconel-718 Nickel-Base Superalloy

这项建议是要进行一项全面的计划， 研究加工参数对表面的影响， 难加工高温合金亚表面质量 （Inconel-718镍基高温合金），用于飞机 机. 实验工作涉及使用各种各样的 诊断工具，以确定定量的表面区域 特色 具体目标是： 产生的各种形式的地表和地下结构损伤; 确定各种形式的种族歧视的原因和根源， 产生的结构性损害; 各种加工参数对结构产生的损伤; 开发一个分析模型来预测表面损伤。 这项研究应该能更好地理解 加工方面，并可能导致改进的方法， 加工这种合金。 如果成功的话，它将成为 未来的自适应控制系统，以产生高表面 质量.

This proposal is to conduct a comprehensive program to investigate the effect of machining parameters on the surface and subsurface quality of a difficult-to-machine high temperature alloy (Inconel-718 Nickel-Based Superalloy) which is used in aircraft engines. The experimental work involves the use of a wide variety of diagnostic tools to determine quantitatively surface region characteristics. The specific goals are: the identification of the various forms of surface and subsurface structural damage produced; the determination of the causes and origins of various forms of structural damage produced; the determination of the effect of various machining parameters on the structural damage produced; and the development of an analytical model to predict surface damage. This research should yield a better understanding of the fundamental aspects of machining and could possibly lead to improved methods for machining this alloy. If successful, it could be the basis in the future for an adaptive control system to produce surfaces of high quality.