Some Investigations into 1,000 MPa Pure Waterjet Cutting

This paper documents the application of the maximum available pressure for cutting operations using a special pump. This increase of the water pressure, and its conversion to an ultra-high-speed waterjet results in deeper and/or faster cutting. Theoretical aspects of using these ultra-high-speed waterjets are presented. The behavior of this waterjet when it hits the target material is shown. The thermal properties of the waterjet were analyzed. Research into the influence of selected pressure levels on the quality of the cutting edge of processed carbon fiber composite, and into the wear on the water nozzle subjected to ultra-high pressure (UHP) is presented.