Analytical modeling of residual stress formation in hybrid additive manufacturing
CIRP Annals, ISSN: 0007-8506, Vol: 73, Issue: 1, Page: 197-200
2024
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Article Description
Current methods for modeling hybrid additive manufacturing are computationally inefficient for use in optimization algorithms. An analytical tool is needed to understand how cycling thermal and mechanical loads via 3D printing and cold working reshapes cumulative residual stress within a build volume. A novel analytical model was developed that couples beam theory and superposition to rapidly predict cumulative residual stress. Modeling results were experimentally validated on AlSi10Mg after laser shock peening prescribed layers during powder bed fusion. Results demonstrated a vertically translating heat-affected zone, and the use of beam-based superposition accurately accounted for residual stress redistribution from cyclic printing and peening.
Bibliographic Details
Elsevier BV
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