The Finish Machining of Additively Manufactured (AM) Nickel Super-alloy Components.

增材制造 (AM) 镍高温合金部件的精加工。

• 批准号: 2277795
• 金额: --
• 依托单位: University of Bath
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2277795
• 关键词: Finish; Machining; Additively; Manufactured; AM

Nickel-based super alloys are advanced materials which can withstand high temperatures. They are extensively used in high-temperature applications such as in jet engines and oil&gas applications. The material properties which makes nickel super alloys ideal for specific applications are also responsible for difficulties in manufacturing processes. Machining nickel super alloys is associated with poor tool life, high costs and low productivity. In addition, machining can damage the surface integrity and material structure of the parts. This project investigates theThis project identifies the key grades of Nickel Super-alloys and investigates their machining requirements. This includes developing the material model for machining simulation, simulation of machining processes, investigating the material cutting mechanism and analysing chip formation. Metallurgic methods will be used to analyse the material structure of nickel alloys. Using high strain rate impact tests, the material model for machining simulation will be developed. The material model will be used for generating computational finite element models of cutting for nickel based super alloys. The models will be validated experimentally. This project involves developing rigs and methods for testing and validating of machining simulation models. The data generated from these investigations will be used to design, manufacture and optimise cutting tool geometry, machining environment and cutting temperature for machining these alloys in order to maximise machinability of nickel based super alloys.Additive manufacturing (AM) has revolutionised how parts are designed and manufactured. However, there are key remaining issues making a barrier for full adoption of AM at industrial scale. Finishing of the AM parts is one of these major issues. The knowledge generated on machining of nickel super alloys will be extended to investigate and develop solutions for finish machining of AM nickel based super alloys.

镍基高温合金是一种能够承受高温的先进材料。它们广泛用于高温应用，如喷气发动机和石油和天然气应用。使镍超合金成为特定应用的理想材料特性也是制造工艺困难的原因。加工镍超合金与刀具寿命差、成本高和生产率低有关。此外，机械加工会破坏零件的表面完整性和材料结构。该项目研究了镍高温合金的主要牌号，并研究了其加工要求。这包括开发用于加工仿真的材料模型、加工过程仿真、研究材料切削机理和分析切屑形成。采用冶金学方法分析镍合金的材料结构。利用高应变率冲击试验，将开发用于加工模拟的材料模型。该材料模型将用于生成镍基高温合金切削的计算有限元模型。这些模型将通过实验进行验证。该项目涉及开发用于测试和验证加工仿真模型的设备和方法。从这些调查中产生的数据将用于设计、制造和优化切削刀具几何形状、加工环境和切削温度，以最大限度地提高镍基高温合金的可加工性。增材制造（AM）彻底改变了零件的设计和制造方式。然而，还有一些关键的遗留问题阻碍了AM在工业规模上的全面采用。AM部件的精加工是这些主要问题之一。镍基高温合金的加工知识将扩展到研究和开发AM镍基高温合金精加工的解决方案。