Title: Effect of impact angle and velocity in crater circularity in abrasive water jet machining by means of multi-particle impact simulation

Authors: Kyriaki Maniadaki, Aristomenis Antoniadis, Nicholas Bilalis

Addresses: Technological Educational Institute (TEI) of Crete, Romanou 3, Halepa, 73100 Chania, Greece. ' Computer Aided Design Lab, Building D4 009, Department of Production Engineering and Management, Technical University of Crete, Kounoupidiana, 73100 Chania, Greece. ' Computer Aided Design Lab, Building D4 009, Department of Production Engineering and Management, Technical University of Crete, Kounoupidiana, 73100 Chania, Greece

Abstract: The present study focuses on the erosion mechanism observed during abrasive water jet (AWJ) machining. An ANSYS/LS-Dyna 3D software-based finite element (FE) model is developed for the representation of the erosion process in a 3D configuration. The proposed FE model|s solution, which accounts for the effect of multiple particle impacts on a workpiece made of stainless steel (AISI 304), is obtained using a 16-node cluster system. The influence of impact angle and particle velocity is currently studied, while the material|s crater circularity is also evaluated. The results of the present study are found to be in very good agreement with their experimental counterparts.

Keywords: AWJ cutting; crater circularity; impact angle; particle velocity; abrasive water jets; water jet machining; multi-particle impact simulation; erosion mechanism; finite element method; FEM; modelling; stainless steel.

DOI: 10.1504/IJMMM.2011.040853

International Journal of Machining and Machinability of Materials, 2011 Vol.10 No.1/2, pp.34 - 47

Available online: 26 Jun 2011 *

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