Abstract
Abrasive water jet machining is used widely these days. But, there are few study cases that water including abrasive grains is jetted by high pressure and modulated by external force. So, the influence of modulated jet on the roughness of surface of a workpiece is uncertain. Then, we put piezoelectric actuator in flow path. When the applied voltage pulse are send the actuator, large-amplitude ripples generate on the water jet stream, and finally it becomes linear stream of droplets. In this study, we report experimental result of making the jet ripple affects polished surface how.
