PVD Coatings on Friction Stir Welding Tools

搅拌摩擦焊工具上的 PVD ​​涂层

• 批准号: 132366
• 金额: $ 12.01万
• 依托单位: TWI LIMITED
• 依托单位国家: 英国
• 项目类别: Feasibility Studies
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=132366
• 关键词: PVD; Coatings; Friction; Stir; Welding

This project will investigate the feasibility of creating coated FSW tools using a novel high energy physical vapour deposition (PVD) process – HiPIMS (High Power Impulse Magnetron Sputtering). Friction Stir Welding (FSW) is an innovative joining process, which uses a rotating, non-consumable tool, which is traversed along the interface of two work-pieces. The process typically provides enhanced weld quality, strength and durability together with reduced energy consumption and environmental impact when compared to conventional fusion welding processes. However, FSW tooling is an extremely demanding environment – high temperature (>700°C), high abrasion and exposure to the reactive effects of freshly exposed metal surfaces – this has limited its commercial application to low melting point alloys, principally aluminium. Through the application of HiPIMS coating, we hope to enable the welding of ‘high-temperature’ materials, such as steel and titanium for high-value industries (e.g. Aerospace & Transport).

该项目将研究使用新型高能物理气相沉积（PVD）工艺- HiPIMS（高功率脉冲磁控溅射）制造涂层FSW工具的可行性。 搅拌摩擦焊（FSW）是一种创新的连接工艺，它使用旋转的、非消耗性的工具，该工具沿着两个工件的界面移动。当与常规熔焊工艺相比时，该工艺通常提供增强的焊接质量、强度和耐久性以及降低的能量消耗和环境影响。 然而，FSW工具是一个极其苛刻的环境-高温（>700°C），高磨损和暴露于新暴露的金属表面的反应效应-这限制了其在低熔点合金，主要是铝的商业应用。通过HiPIMS涂层的应用，我们希望能够实现“高温”材料的焊接，例如用于高价值行业（例如航空航天和运输）的钢和钛。