Analysis of abrasive waterjet factors influencing the cast aluminium surface roughness
by S. Hloch, M. Gombar, J. Valicek
International Journal of Precision Technology (IJPTECH), Vol. 1, No. 1, 2007

Abstract: This paper deals with experimental research and evaluation of abrasive waterjet cutting technology process by evaluation of technology factors, which influence the microgeometry (average roughness) of 10 mm thick aluminium tooled workpiece surface through design of experiments. Significance of six chosen process factors – independent variables (traverse rate, abrasive mass flow rate, pressure, J/T abbreviation and feeding direction) that influence on the surface quality - has been evaluated by full factorial design with six factors at two levels. The surface quality has been evaluated by static quality characteristic average roughness Ra. The multiple non-linear regression equation obtained from ANOVA gives the level quality Ra as a function of the treatment factors. Different factor significance was found, which generated surface profile under defined conditions by abrasive waterjet.

Online publication date: Wed, 10-Oct-2007

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