Rule-based software tool to specify the manufacturing process parameters for a contoured EB-PVD coating

William C. S. Weir; Richard D. Sisson Jr.; Sudhangshu Bose

doi:10.1117/12.403664

13 October 2000 Rule-based software tool to specify the manufacturing process parameters for a contoured EB-PVD coating

William C. S. Weir, Richard D. Sisson Jr., Sudhangshu Bose

Proceedings Volume 4192, Intelligent Systems in Design and Manufacturing III; (2000) https://doi.org/10.1117/12.403664
Event: Intelligent Systems and Smart Manufacturing, 2000, Boston, MA, United States

Abstract

A rule-based design software tool has been developed to specify the manufacturing process parameters to fabricate a contoured electron beam physical vapor deposited (EB-PVD) partially stabilized zirconia (PSZ) thermal barrier coating (TBC) on a curved surface. The expert data for this tool was developed from model predictions based on an experimentally verified, theoretical model of coating deposition rates as a function of position in the PVD vapor cloud (Knudsen cosine law). The predictive model was used for a wide variety of process parameters, including shadowing and non-uniform angular rotational velocity, to develop a database of contoured coating profiles (forward chaining). A coating profile matching routine was developed to identify the process parameters that yield a coating profile that matches the designers coating profile. The focus of this presentation will be on the software tool with emphasis on the expert database development and the coating thickness profile matching for a curved surface.

Citation Download Citation

William C. S. Weir, Richard D. Sisson Jr., and Sudhangshu Bose "Rule-based software tool to specify the manufacturing process parameters for a contoured EB-PVD coating", Proc. SPIE 4192, Intelligent Systems in Design and Manufacturing III, (13 October 2000); https://doi.org/10.1117/12.403664

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