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Abstract
An analysis of the effect of jet impact angle on the major cutting performance measures in abrasive waterjet (AWJ) machining of alumina ceramics is presented based on experimental investigations. It is found that angling the jet forward in the cutting plane is an effective means in improving the cutting performance. A quantitative assessment is made which shows that the optimum jet impact angle for cutting alumina ceramics is about 10o. Further improvement on the cutting performance can be made by using the optimum jet impact angle in multipass AWJ cutting.