Design of high performace rotary friction tooling systems for the manufacture of aero-engine components

对高质量接头的需求，加上焊接大多数航空航天材料的固有困难，促使航空航天工业研究基于固态摩擦的焊接工艺。旋转摩擦焊接，特别是，是一种固态摩擦焊接技术，允许焊接在一起的热量，由于在两个组件之间的界面摩擦和冲压机施加的锻造压力产生的装置圆柱形零件。博士的目的是开发一种新型的专业工具，能够解决夹具系统中的问题，以提高焊接质量。为了做到这一点，实现能够准确描述过程的数值模型和能够提取用于交叉比较的战略实验数据的测量系统是至关重要的。

The need for high-quality joints, combined with the inherent difficulty in welding most aerospace materials, has fostered aerospace industry to research in solid-state friction-based welding processes. Rotary friction welding, in particular, is a solid state friction welding technique that allows to weld together cylindrical parts by means of the heat generated due to the friction at the interface between the two components and the forging pressure applied by a ram.The aim of the PhD is to develop a novel specialist tool able to solve issues in the fixturing system in order to improve the weld quality. In order to do that, it is fundamental to implement a numerical model able to describe accurately the process and a measurement system able to extract strategic experimental data for cross-comparison.