CFD Analysis on Abrasive Water Jet Nozzles

  • Dipak S. Patil, Dr. M. M. Bhoomkar

Abstract

Abrasive water jet machining is one of the most recently advanced un conventional manufacturing technique. The general nature of flow through the machining, results in rapid wear of the nozzle which decrease the cutting performance. It is well known that the inlet pressure of the abrasive water suspension has main effect on the erosion characteristics of the inner surface of the nozzle. The objective of the work is to analyze the effect of inlet pressure, Abrasive flow rate and Velocity on nozzle. The flow of the Abrasive Fluid mixture through the nozzle, results in rapid wear of the nozzle which degrades the cutting performance. This may lead to the divergence of the Abrasive Fluid Jet such that the angle of impingement varies. This jet impingement angles have more influence on the machining responses than the normal jet impingement angle as the depth of cut is improved thereby minimizing the shallow cuts within the same total cutting time. Nozzle replacement cost plays a vital role in the economics of the machining process and improvements in its wear characteristics are critical for the growth of such machining technology. It is well known that the inlet pressure of the abrasive fluid suspension has significant effect on the erosion characteristics of the inside surface in the nozzle The analysis would be carried out by varying the inlet pressure of the nozzle, so as to obtain optimized process parameters for minimum nozzle wear. The three-phase flow analysis was carried out by using computational fluid dynamics tool of Solid works. The availability of minimized process parameters such as of abrasive water jet machining (AWJM) is limited to water and experimental test can be cost prohibitive.

Published
2021-11-19
How to Cite
Dipak S. Patil, Dr. M. M. Bhoomkar. (2021). CFD Analysis on Abrasive Water Jet Nozzles. Design Engineering, 13611 - 13619. Retrieved from http://thedesignengineering.com/index.php/DE/article/view/6481
Section
Articles