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Technical papers


The qualification of powder bed fusion processes is based on lengthy and expensive experimental trial and error. If models can be applied to predict process details and determine the probability of manufacturing...

Additive Manufacturing

In powder bed based Additive Manufacturing (AM) processes like Selective Laser Melting (SLM) or Electron Beam Melting (EBM), the spatial distribution of the individual powder particles is typically unknown....

Selective Laser melting, Powder bed characteristics, CFD simulation, Particle distribution, Powder packing
Additive Manufacturing

Qualification of aerospace components is a long and costly process involving material properties, material specifications, manufacturing process, and design among others. Reducing qualification time and cost while...

Rapid qualification, Integrated computational materials engineering, Uncertainty quantification, Process modeling, Materials modeling, Process monitoring, Non-destructive evaluation, Verification and validation
Additive Manufacturing

N. N’Dri, H.-W. Mindt, H. Duan, Y. Vincent, O. Köser, M. Megahed, Blanka Szost, Sofiane Terzi & David John Jarvis, Ludovic Kounde & Thierry Engel, Modelling & Validation of Blown Powder Additive...

Additive Manufacturing, Blown Powder Processes, Laser Direct Metal Deposition, Melt Pool, Residual Stresses, Distortion, Modelling
Additive Manufacturing

H.-W. Mindt, M. Megahed, Verification of Numerically Calculated Cooling Rates of Powder Process Additive Manufacturing, TMS 2016 145th Annual Meeting & Exhibition, Feb. 14-18, 2016, Nashville, Tennessee....

Additive Manufacturing, Powder Bed, Direct Metal Laser Melting, Modelling, Verification
Additive Manufacturing

H.-W. Mindt, Brian Shula, M. Megahed, A. D. Peralta, J. Neumann, Powder Bed Models – Numerical Assessment of As-Built Quality, AIAA 2016-1657, AIAA Science and Technology Forum and Exposition 2016, 4-8 January, 2016...

Additive Manufacturing, Powder Bed, Direct Metal Laser Melting, Modelling, Verification
Additive Manufacturing

N. N’Dri, H.-W. Mindt, B. Shula, M. Megahed, A. Peralta, P. Kantzos and J. Neumann, DMLS Process Modelling & Validation, TMS 2015 144th Annual Meeting & Exhibition, March 15-19, 2015, Orlando, FL. Proceedings...

Selective Laser Sintering, Direct Metal Laser Sintering, Modelling, Melt Pool, Residual stress, Distortion
Additive Manufacturing

N. N’Dri, H.-W. Mindt, B. Shula, M. Megahed, A. Peralta, P. Kantzos and J. Neumann, DMLS Process Modelling & Validation, TMS 2015 144th Annual Meeting & Exhibition, March 15-19, 2015, Orlando, FL. Proceedings...

Additive Manufacturing

M. Megahed, H.-W. Mindt, N. N’Dri, H.-Z. Duan and O. Desmaison, Metal Additive Manufacturing Process and Residual Stress Modelling, Integrating Materials and Manufacturing Innovation, 2016, 5:4. DOI: 10.1186/s40192-...

Metal additive manufacturing, Powder bed, Blown powder, Wire feed, Process modeling, As-built porosity, Residual stress, Distortion, Multi-scale modeling, Multi-physics modeling, ICME
Additive Manufacturing

M. Vogel, M. Khan, J. Ibara-Medina, A. Pinkerton, N. N’Dri and M. Megahed, A Coupled Approach to Weld Pool, Phase and Residual Stress Modelling of Laser Direct Metal Deposition (LDMD) Processes, 2nd World Congress on...

Laser Cladding, melt pool modeling, CFD/FEM coupling
Additive Manufacturing