Experiments and computer simulation analysis of impact behaviors of micro-sized abrasive in waterjet cutting of thin multiple layered materials

The abrasive waterjet (AWJ) is now widely used in the advanced cutting processes of polymers, metals, glass, ceramics and composite materials like thin multiple-layered material (TMM). Various research and development efforts have recently been made to understand the science of AWJ. However, the interaction mechanism between a workpiece and high-velocity abrasive particles still remains a complicated problem. In this work, the material removal mechanisms of AWJ such as micro penetration and micro dent were experimentally investigated. In addition, a new computer simulation model considering high strain rate effect was proposed to understand the micro impact behavior of high-velocity micro-sized abrasives in AWJ cutting.