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Summary Residual stress induced deformations are a major cause of loss in tolerances in Solid Freeform Fabrication processes employing direct metal deposition. In this paper, a 2D finite element thermo-mechanical model is presented to predict the residual stress induced deformations with application to processes where material is added using a distributed, moving heat source. A sequentially coupled...
In the present study a parametric thermal analysis of a single molten metal droplet deposited on a large substrate has been performed with application to various solid freeform fabrication (SFF) processes employing droplet-based deposition. Simulation is conducted to investigate the effect of droplet shape, substrate thermal properties, substrate size and thermal boundary conditions of substrate base...
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