High Resolution Thermal Measurement for Advanced Manufacturing Research

用于先进制造研究的高分辨率热测量

• 批准号: RTI-2020-00496
• 负责人: Veldhuis, Stephen
• 金额: $ 10.77万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=693637
• 关键词: Resolution; Thermal; Measurement; Advanced; Manufacturing

Approximately 30% of all metal product manufacturing activity in Canada is metal removal (machining) and, with few exceptions, everything extracted from the earth and processed into manufactured products across every sector of Canada's economy requires machining, either directly or indirectly. Machining is and will continue to be one of the most important cornerstones of manufacturing for the foreseeable future.******Our team at the McMaster Manufacturing Research Institute (MMRI), led by Dr. Stephen Veldhuis, have an extensive history in advanced manufacturing research with a specific focus in machining. By nature, machining research is highly applications based and has led to very strong partnerships between the MMRI and industry, ensuring MMRI research thrusts are working towards developing knowledge, techniques and technologies that lead to valuable solutions for industry.******In difficult to machine materials like titanium and Inconel, the millimetre sized “cutting zone” is subjected to local pressures exceeding 2 GPa and temperatures exceeding 1000ºC, resulting in severe chemical and physical wear phenomena. Addressing these demanding conditions requires the ability to characterize and understand the interactions occurring between the material and tool.******In the MMRI's field of metal cutting research, the majority of past work has been done on tools after they are worn out due to the extreme difficulty of in-situ characterization of machining processes. Drawing on over 20 years of experience in this field, the MMRI has been working on an experimental setup which makes in-situ characterization possible. The experimental setup has been proven and important data is now being collected using high-speed video to characterize the millimetre sized “cutting zone” on cutting tools in a way never done before.******To the best of our knowledge, the MMRI is the first research group in the world to characterize metal cutting in-situ in this way but we currently lack a robust method to measure temperatures in-situ. To be the first in the world to publish novel results in this direction, we are in critical need of a thermal imaging system which is the only feasible way to measure temperatures in our application.******In industry, the productivity, quality and cost of machining processes is greatly impacted by the performance of metal cutting tools. Wear and performance of these tools is governed by the temperatures and pressures in the cutting zone, leading to chemical and physical wear. Engineering tools to cut faster and last long requires a detailed understanding of the chemical and physical wear mechanisms, which are highly complex and still not fully understood due to the extreme difficulty of observing these mechanisms directly. A thermal imaging system will allow the MMRI's over 50 research personnel to greatly improve our ability in research experiments to measure temperature and better understand the fundamental drivers of physical and chemical wear.

加拿大所有金属产品制造活动中大约 30% 是金属去除（机械加工），除少数例外，加拿大经济各个部门从地球提取并加工成制成品的所有物品都需要直接或间接机械加工。在可预见的未来，机械加工现在和将来仍将是制造业最重要的基石之一。******我们麦克马斯特制造研究所 (MMRI) 的团队由 Stephen Veldhuis 博士领导，在先进制造研究方面拥有丰富的历史，特别关注机械加工。从本质上讲，加工研究是高度基于应用的，并在 MMRI 和工业之间建立了非常牢固的合作伙伴关系，确保 MMRI 研究重点致力于开发知识、技术和技术，为工业带来有价值的解决方案。********在钛和铬镍铁合金等难加工材料中，毫米大小的“切削区域”要承受超过 2 GPa 的局部压力和超过 1000°C 的温度，导致 严重的化学和物理磨损现象。解决这些苛刻的条件需要能够表征和理解材料和刀具之间发生的相互作用。******在 MMRI 的金属切削研究领域，由于加工过程的现场表征极其困难，过去的大部分工作都是在磨损后的刀具上完成的。凭借该领域 20 多年的经验，MMRI 一直致力于开发一种实验装置，使原位表征成为可能。实验设置已经得到验证，现在正在使用高速视频收集重要数据，以前所未有的方式表征切削刀具上毫米大小的“切削区域”。******据我们所知，MMRI 是世界上第一个以这种方式表征金属切削原位的研究小组，但我们目前缺乏一种可靠的方法来测量原位温度。为了成为世界上第一个在这个方向上发表新颖成果的人，我们迫切需要热成像系统，这是在我们的应用中测量温度的唯一可行的方法。******在工业中，加工过程的生产率、质量和成本很大程度上受到金属切削刀具性能的影响。这些工具的磨损和性能取决于切削区域的温度和压力，从而导致化学和物理磨损。要实现更快、更耐用的工程工具，需要详细了解化学和物理磨损机制，这些机制非常复杂，而且由于直接观察这些机制极其困难，目前尚未完全理解。热成像系统将使 MMRI 的 50 多名研究人员能够极大地提高我们测量温度的研究实验能力，并更好地了解物理和化学磨损的基本驱动因素。