Cold spray process additive manufacturing of heat transfer features in liquid cooled computer components

液冷计算机组件传热特性的冷喷涂工艺增材制造

• 批准号: 500308-2016
• 负责人: Jodoin, Bertrand
• 金额: $ 0.73万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=654700
• 关键词: Cold; spray; process; additive; manufacturing

The latest generation of computer components requires high performance cooling systems due to increased power consumption and hardware packaging size restrictions. The use of liquid based cooling (LBC) systems for thermal management of computer components has demonstrated significant promise for improved thermal performance in comparison to traditional air cooling techniques. Despite this potential, the technology remains within the confines of a niche industry, and as such most existing LBC systems are poorly optimized for thermal performance. IEIis currently developing a LBC system for video cards and graphics processing units (GPUs). The proposed project aims to use Cold Gas Dynamic Spraying (CGDS) as a novel additive manufacturing (AM) process for the production of high performance heat transfer features to be used in those high performance LBC systems. Previous work has already demonstrated the feasibility of this approach. However, these studies have also highlighted certain key challenges when considering CGDS as an AM technique in a high volume production setting. In particular, costs associated to raw material waste (powder material) can be high and issues related to process reliability/repeatability (due to undesirable material buildup on components of the CGDS pin fin fabrication fixture) are often present. These fundamental engineering issues can significantly hinder the economic viability of the technique, and as such they are the focus of the current proposed project. The successful resolution of these issues would be instrumental in demonstrating the reliability and economic feasibility of the CGDS process as an AM technique in a high volume production setting for GPUs. This could have enormous benefits to Canadian industries as it could introduce CGDS as a new viable and cost-effective AM technique, which could in turn open up a broad range of new possibilities beyond the specific application targeted in this proposal.**

最新一代的计算机组件需要增加功耗和硬件包装尺寸限制，因此需要高性能冷却系统。 与传统的空气冷却技术相比，使用基于液体的冷却系统（LBC）系统在计算机组件的热管理中表现出了重大的希望。 尽管有这种潜力，但该技术仍在利基行业的范围内，因此，大多数现有的LBC系统在热性能方面的优化程度较差。 IEIIS目前正在开发用于视频卡和图形处理单元（GPU）的LBC系统。 拟议的项目旨在将冷气动力喷涂（CGD）用作新型添加剂制造（AM）工艺，用于生产高性能传热特征，可用于这些高性能LBC系统。 以前的工作已经证明了这种方法的可行性。但是，在将CGD视为高批量生产环境中的AM技术时，这些研究还强调了某些关键挑战。 特别是，与原材料废物（粉末材料）相关的成本可能很高，并且与过程可靠性/可重复性有关（由于CGDS PIN PIN FIN FAIRATION FACIETITURE的组件上的不良材料堆积）。 这些基本的工程问题可能会极大地阻碍该技术的经济可行性，因此它们是当前拟议项目的重点。 这些问题的成功解决将有助于证明在GPU的大量生产环境中，CGD流程作为AM技术的可靠性和经济可行性。 这可能会给加拿大行业带来巨大的好处，因为它可以将CGD作为一种新的可行且具有成本效益的AM技术引入，这反过来又可以为本提案中针对的特定申请提供了广泛的新可能性。********** **