Enhancing and modelling the abrasive waterjet impact and erosion process

本项目旨在了解和改进超高压磨料水射流(AWJ)的冲击过程。目前的AWJ加工技术只将不到20%的射流能量传递到工件上，这主要是由于射流冲击部位的滞流层的减振作用。本项目试图利用超声振动消除这一影响，探索颗粒冲击与工件振动耦合作用下新的冲击细观力学。预期的结果是一种新的AWJ技术，用于高效、多尺度的加工，并提高行业制造高完整性产品的能力。

This project aims to understand and improve the ultrahigh pressure abrasive waterjet (AWJ) impact process. The current AWJ machining technology transfers less than 20% of the jet energy to the workpiece, mainly due to the damping effect of a stagnant layer at the jet impact site. This project attempts to remove this effect using ultrasonic vibration and explore the new impact micromechanics under the coupled effect of particle impact and workpiece vibration. The expected outcome is a new AWJ technology for efficient, multi-scale machining, and to increase industry’s capability in fabricating high-integrity products.