This paper presents a new approach for computer aided generation of optimized trajectories in thermal spray systems. Through a combination of CFD and FEM modeling, the influence of torch trajectory and speed profile on heat and mass transfer during deposition is assessed along with its effect on residual stress and coating properties. Coating experiments with WC-Co as the spray material were performed on real components in order to validate the developed programming and simulation tools.

heat transfer, numerical simulation, residual stress distribution, thermal spraying, trajectory generation
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Copyright © 2009 ASM International. All rights reserved.
2009
ASM International
Topics
Thermal spray equipment Residual stress analysis Thermal spray coating Modeling tools and methods Heat transfer coefficient
Issue Section:
Process Modeling and Simulation
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