Researches regarding influence of traverse speed and stand-off distance to the roughness in AWJ process

This paper aims to establish a relationship between surface roughness results from hydroabrasive processing and parameters with controlled variability, traverse speed and stand-off distance. Measuring the influence of these parameters is done using statistical and experimental tools. Establishing the relationship between the variation of input signals and the variation of result, is performed by introducing coefficients whose values determine the interdependence function between the input signal and response. Have been obtained diagrams of behavior of hydroabrasive process which allowed conclusions about the variability of the results obtained. Thus it can be concluded that the traverse speed and stand-off distance are input signals and they depends on the initial configuration of the system and its adjustment possibilities by variability of controlled parameters. Roughness is a result of this application, clearly defined which can be optimized by setting controlled parameters.