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Does anyone know of or use a spray coverage simulation software package? We are doing cosmetic peening (relatively low pressures) and have incredibly tight tolerances on our gloss and Sq. The closest thing I could think of is something made for automotive painting. Open to any suggestions on software to model my coverage so I place my nozzles at the correct angles and distances.

P.S. we are ready use Almen strips, but we are dealing with small 3D curved parts.

Two mechanisms contribute to Almen strip curvature. These are: plastic deformation and residual stress. Plastic deformation will continue after notional 100% coverage. Recrystallisation is not a factor.

Jean,
The conversion factor is for refence only. You are not permitted to use a different strip scale than what is called out on the engineering drawing.