Abstract
This paper presents the decision-making process used to simultaneously optimize the thickness and density of copper coatings produced by low-pressure cold spraying. Utility values based on both process parameters are analyzed for optimization using a Taguchi approach. The selected input parameters of powder feeding arrangement, substrate material, air stagnation pressure, air stagnation temperature, and standoff distance are shown to significantly improve the utility function of interest. The percentage contributions of the input parameters to optimize coating density and thickness are substrate material (50.03%), standoff distance (28.87%), air stagnation pressure (6.41%), powder feeding arrangement (4.68%), and air stagnation temperature (2.64%).
