Technical papers

Influence of Powder Bed Characteristics on Material Quality in 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. Nevertheless…
Virtual Performance Selective Laser melting, Powder bed characteristics, CFD simulation, Particle distribution, Powder packing

Towards rapid qualification of powder-bed laser additively manufactured parts
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…
Virtual Performance Rapid qualification, Integrated computational materials engineering, Uncertainty quantification, Process modeling, Materials modeling, Process monitoring, Non-destructive evaluation, Verification and validation

Electric Steelmaking Coupled Multiphysics Simulation by Finite Elements
State of the art computer aided coupled multiphysics simulation tools can be advantageous in the understanding and design of industrial processes. This paper presents such a tool for electric steelmaking, metallurgical…
Casting, CFD STEELMAKING, CASTING, METALLURGY, INDUCTION HEATING, MAGNETIC STIRRING, SURFACE HARDENING, FINITE ELEMENTS, EDGE ELEMENTS, COUPLED MULTIPHYSICS, COMPUTER SIMULATION

Verification Of Continuous Casting Process Of Steel Round Billets Using Numerical Modelling
Continuous casting technology is currently the primary method in production of steel billets and slabs. The primary and secondary cooling must ensure the continuous casting of steel without strand breakouts and other…
Casting Steel, continuous casting, numerical modelling, metallurgical length, hot tears

Hydrogen Tracking In Production Of A Special Forging: From Ingot Casting To Heat Treatment Using Simulation
Hydrogen has been and always will be a source of various problems within steel production because of its generally detrimental effects on processing characteristics and service performance of steel products.…
Casting Hydrogen Flakes, Microstructure, Casting Simulation, Forging Simulation, Heat Treatment Simulation

Virtualization Of High Vacuum And High Performance HPDC Machine For Top Quality Casting
OEM and automotive market is driven foundry suppliers to high performance castings: high structural integrity, high mechanical properties, welding and heat treatment. These requirements are typically obtain with gravity…
Casting HPDC, CASTING SIMULATION SOFTWARE, VACUUM DIE CASTING, DCM, MACHINE

Modelling & Validation of Blown Powder in Additive Manufacturing Processes
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…
Virtual Performance Additive Manufacturing, Blown Powder Processes, Laser Direct Metal Deposition, Melt Pool, Residual Stresses, Distortion, Modelling

Verification Of Numerically Calculated Cooling Rates Of Powder Bed 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.…
Virtual Performance Additive Manufacturing, Powder Bed, Direct Metal Laser Melting, Modelling, Verification

Powder Bed Models - Numerical Assessment of As-Built Quality
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…
Virtual Performance Additive Manufacturing, Powder Bed, Direct Metal Laser Melting, Modelling, Verification

DMLS Process Modelling & Validation
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.…
Virtual Performance Selective Laser Sintering, Direct Metal Laser Sintering, Modelling, Melt Pool, Residual stress, Distortion