DYNAMIC ANALYSIS OF THE SPATIAL-TEMPORAL BEHAVIOUR OF THE CUTTING FRONT IN ABRASIVE WATERJET CUTTING

摘要

Abrasive water jets have become a recent tool in mechanical machining. With its great advantages of geometrical and material flexibility and its ability of cutting hard-to-machine materials the technology is more and more spreading among industries. Due to the very complex and highly dynamic process most approaches to modelling of the process focus at the analysis of the stationary result.rnIn this paper new approaches to analysis of the cutting front are elaborated. With the utilisation of a high speed optical measurement system the dynamic behaviour of the cutting front is analysed. New insights about the particle-material interaction could be gained by evaluation the shape of the very cutting front and its spatial and temporal development. With this a better understanding of the participating processes new approaches to modelling the abrasive waterjet can be initiated resulting in possible optimisation of the overall outcome regarding surface quality and cutting performance.