Investigation of limestone cutting efficiency by the abrasive water suspension jet

Abstract

The paper concern to the impact of the Abrasive Water Suspension Jet (AWSJ) limestone cutting process parameters, such as abrasive flow rate, diameter and length of the forming nozzle jet under reduced pressure on the depth of cut. Achieving such a high efficiency in the processing of this rock results from the use of circular motion of the liquid to create a stream. This has become possible due to the replacement of a low-efficiency injector mixer with a new mixer in which the hydro-abrasive mixture is generated directly under high pressure. The conducted research allowed to determine the best geometric dimensions of the working nozzle and abrasive flow rate to achieve the best machining effects were achieved.