Residual strains in directed energy deposition additive manufacturing | Zendy

Daniel Weisz-Patrault | Zendy

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Residual strains in directed energy deposition additive manufacturing

Author(s) -

Daniel Weisz-Patrault

Publication year - 2020

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/5.0026504

Subject(s) - deposition (geology) , residual stress , materials science , residual , thermal , process (computing) , parametric statistics , phase (matter) , process optimization , plasticity , computer science , algorithm , composite material , thermodynamics , chemical engineering , physics , mathematics , engineering , paleontology , statistics , quantum mechanics , sediment , biology , operating system

Recently, a fast macroscopic and semi-analytical thermal analysis of Laser Metal Powder Directed Energy Deposition (LMPDED) has been submitted to publication. The effect of various process parameters are taken into account as well as solidi-fication and solid-state phase transitions. One of the main advantage of the proposed approach is that the model is fast enough to simulate the entire process and perform parametric studies or optimization loops. Thus, residual strains induced by temperature variations and phase transitions are easily computed. In addition, transformation induced plasticity is also investigated. Within this framework, temperature control strategies can be optimized.

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