Dry Cutting - New Coating Concepts for 2010

干式切割 - 2010 年新涂层概念

• 批准号: 0423419
• 负责人: Michael Graham
• 金额: $ 15万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0423419&HistoricalAwards=false
• 关键词: Dry; Cutting; New; Coating; Concepts

This grant provides funding for development of a concept to improve dry metal cutting by utilizing naturally occurring oxides at the cutting tool-work piece interface to reduce friction and heat due to the cutting process, thereby reducing the need for coolant and lubricant fluids. The natural reaction product of the cutting-tool/work-piece interaction is one or more metal oxide. It is logical to work with, rather than against nature by designing a tool coating that produces its own lubricious oxide when the tool tip reaches a certain temperature. Coating compositions and structures have been proposed and these will be explored by unbalanced magnetron reactive sputter deposition. Nano-layer and dispersed-phase structures will be investigated with the idea of retaining high temperature strength, while controlling the rate of lubricious oxide formation. Compositions will be chosen that produce oxides at appropriate temperatures and that provide the inherent strength required for the cutting function. The structures and compositions will be fully characterized and correlation with performance will be made using instrumented cutting tests that provide information on cutting temperature, force, and work-piece surface finish. If this project is successful, it will provide the foundation for the development of a new strategy in the design of dry-cutting tool coatings. It will provide insights to the development of successful processing techniques for the creation of the desired coating structures and for the incorporation of the desired oxide forming elements. It will provide fundamental data about the control of oxide formation and the behavior of such oxides as they impact cutting behavior. In practice, successful outcomes will contribute to a reduction in the use of cooling and lubricant fluids, which will favorably impact manufacturing costs and environmental quality in the work place.

该赠款为开发一种概念提供资金，通过利用切削工具-工件界面处自然产生的氧化物来减少切削过程中的摩擦和热量，从而减少对冷却剂和润滑剂的需求，从而改善干式金属切削。 切削工具/工件相互作用的自然反应产物是一种或多种金属氧化物。这是合乎逻辑的工作，而不是违背自然的设计工具涂层，产生自己的润滑氧化物时，工具尖端达到一定的温度。 已经提出了涂层成分和结构，并且将通过非平衡磁控反应溅射沉积来探索这些成分和结构。 纳米层和分散相结构将研究的想法，保持高温强度，同时控制润滑氧化物的形成速度。 将选择在适当温度下产生氧化物并提供切割功能所需的固有强度的组合物。 结构和成分将被充分表征，并与性能的相关性将使用仪表切削测试，提供有关切削温度，力和工件表面光洁度的信息。如果该项目获得成功，将为开发干切削刀具涂层设计的新策略奠定基础。 它将为成功的加工技术的发展提供见解，以创建所需的涂层结构和所需的氧化物形成元素的结合。 它将提供有关氧化物形成的控制以及这些氧化物影响切削行为的行为的基本数据。 在实践中，成功的结果将有助于减少冷却和润滑液的使用，这将有利地影响制造成本和工作场所的环境质量。