Applying holographic laser beams to improve additive manufacturing metallurgy

应用全息激光束改进增材制造冶金

• 批准号: 2132549
• 金额: --
• 依托单位: Loughborough University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2132549
• 关键词: Applying; holographic; laser; beams; improve

Conventional round laser beams of symmetric energy distributions are recognised as a fundamental contributor to the issues surrounding the quality of additively manufactured components. The use of custom re-profiling with computer generated diffractive optical elements (DOEs) enables the modification of beam irradiance profiles with the purpose of creating deposits with improved material properties and physical characteristics. This PhD project will involve collaborative work and supervision with the industrial partners Renishaw plc to develop new understanding of metal depositions and optical control for advanced powder bed additive manufacturing technologies. The work will include studying the 3D temperature distribution, fluid flow and cooling rates in materials produced by custom DOEs. Physical and microstructural property improvements from such an approach will be investigated.

传统的能量分布对称的圆形激光束被认为是围绕增材制造部件质量问题的基本贡献者。使用计算机生成的衍射光学元件（do）的定制重新轮廓，可以修改光束辐照度轮廓，以创建具有改进的材料性能和物理特性的沉积物。该博士项目将涉及与工业合作伙伴雷尼绍plc的合作和监督，以开发对先进粉末床增材制造技术的金属沉积和光学控制的新理解。这项工作将包括研究定制do生产的材料的三维温度分布、流体流动和冷却速率。将研究这种方法对物理和微观结构性能的改善。