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Application of Modelling and Optimization Methods in Abrasive Water Jet Machining

Abrasive water jet machining belongs to the non-conventional machining processes. Abrasive water jet machining as a tool used by water jet under high pressure with the addition of abrasive particles and represent of highly dynamic and stochastic machining process. The aim of this paper is to conduct the experimental research of process parameters influence on surface roughness of the machined parts, and to study the effects of selected process parameters on the surface roughness. The research was carried out for two different materials (stainless steel and aluminium alloy) using orthogonal experiment plan and factorial design. Based on the obtained experimental results are defined mathematical models of surface roughness using different approaches. The optimal values of process parameters, verified through confirmation tests, improve cutting quality

abrasive water jet machining; surface roughness; modeling; optimization

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