Cost-effective estimation of flash extrusion and defects in linear friction welding using Voronoi diagrams

Linear friction welding (LFW) is a solid-state process for metals that works by oscillating one workpiece relative to the other. Predicting amount of flash and path are important tasks in LFW, because quality directly related path. In this study, we investigate extrusion experimentally, demonstrate tends flow towards nearest edge. Based on observation, develop mathematical model extrusion, propose prediction method based Voronoi diagram. We verify proposed show can be improved modifying joint shape such sufficient extruded every direction.