This document summarizes research into optimizing the surface characteristics of rock dust reinforced aluminum composites for automotive applications using abrasive water suspension jet (AWSJ) machining. The research involved experiments to determine the effects of various AWSJ process parameters on material removal rate, kerf width, and surface roughness. It was found that feed rate was the most significant factor influencing these response variables for both above water and under water cutting. Under water cutting produced better surface finish and material removal rate compared to above water cutting. The research demonstrated that AWSJ machining is an effective method for machining aluminum composites.