Promoting and Sustaining an Adaptive Response in Tool Materials

促进和维持工具材料的适应性响应

• 批准号: RGPIN-2019-07096
• 负责人: Veldhuis, Stephen
• 金额: $ 2.84万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=739306
• 关键词: Promoting; Sustaining; Adaptive; Response; Tool

The overall objective of my research group is to rapidly develop custom tooling and tune process parameters to meet specific workpiece and manufacturing process requirements. Significant improvements in manufacturing process performance have been achieved through advanced surface engineering of tooling. The approach taken to date is largely static, with properties typically deemed locked in during deposition. Our approach is dynamic, leveraging the natural adaptive response on a cutting tool's surface to self-organize under extreme friction. Through this mechanism beneficial protective and lubricating tribofilms are formed in the friction zone. This effect is similar to how callouses form on one's hand to provide protection against future injury during hard work. My previous Discovery grant identified tribofilms that serve a beneficial function in machining applications. We demonstrated the ability to influence their formation through coating composition, microstructure control and by adjusting the machining process conditions. We are now commercializing these results with our industry partners and realizing significant performance improvements in their operations. To further advance our knowledge, my group is now closely integrating characterisation and analysis, including modeling, nano-indentation, scratch and tribometer testing, with experimental results gained through industry-scale testing on our lab CNC machines and subsequent in-depth characterisation of wear. The research program described in this proposal will help form the foundation of our knowledge on self-organization and allow us to improve our fundamental understanding of how to promote and sustain an adaptive response in a specific manufacturing process. Expected discoveries include: 1.the identification of beneficial tribofilms for the machining of difficult to cut materials and the organization of this information into functional surface treatments largely focusing on physical vapour deposited (PVD) coatings; 2.novel PVD coatings which promote and sustain the adaptive response during machining identified in the first activity; 3.tool features and process conditions which enhance and fully utilize the unique properties of adaptive surfaces identified and developed in the two previous areas. The results will be organized into: 1.a database of tribofilm materials for specific tool and workpiece materials factoring in local processing conditions related to temperature and load; 2.surface treatment formulations involving PVD coating composition and coating process parameters together with pre and post surface treatments; 3.a methodology for designing tools and tuning process parameters which further promote and sustain the adaptive response over time. Realizing a systematic approach to tool design and process tuning based on a fundamental understanding of the adaptive response of a surface will provide Canadian manufacturers with a significant competitive advantage.

我的研究小组的总体目标是快速开发自定义工具和调整过程参数，以满足特定的工件和制造过程要求。通过工具的高级表面工程可以实现制造过程的显着改善。迄今为止采用的方法在很大程度上是静态的，在沉积期间，特性通常被视为锁定。我们的方法是动态的，利用切割工具表面上的自然自适应反应在极端摩擦下进行自组织。通过这种机制，有益的保护性和润滑旋转膜在摩擦区形成。这种效果类似于老号的手上形成的人，以防止在辛勤工作中保护未来的伤害。我以前的Discovery Grant确定了在加工应用程序中发挥有益功能的互环载体。我们证明了通过涂料组成，微结构控制以及调整加工过程条件来影响其形成的能力。现在，我们正在与我们的行业合作伙伴商业化这些结果，并意识到其运营的绩效改善。为了进一步促进我们的知识，我的小组现在正在密切整合表征和分析，包括建模，纳米注册，刮擦和互部测试，并通过对我们的实验室CNC机器的行业规模测试获得了实验结果，以及随后对磨损的深入表征。本提案中描述的研究计划将有助于构成我们关于自组织知识的基础，并使我们能够提高对如何在特定制造过程中促进和维持自适应响应的基本理解。预期的发现包括：1。鉴定有益的摩擦膜来加工难以切割材料，并将这些信息组织到功能表面处理中，主要集中于沉积物理蒸气（PVD）涂层； 2.在第一次活动中确定的加工过程中促进和维持自适应反应的novel PVD涂层； 3.工具特征和过程条件，可增强和充分利用在前两个区域中识别和开发的自适应表面的独特特性。结果将组织为：1。在与温度和负载有关的本地加工条件下的特定工具和工件材料的摩擦材料数据库； 2.涉及PVD涂料组成和涂料过程参数的表面处理配方以及表面处理前后； 3.设计工具和调整过程参数的方法，该方法随着时间的推移进一步促进和维持适应性响应。根据对表面的适应性响应的基本了解，实现一种系统的方法来设计和过程调整，将为加拿大制造商提供重要的竞争优势。