Ehsan Toyserkani

TL;DR: In this article, different powder-based additive manufacturing processes deployed to ferrous alloys, their key process parameters, phase transformation and microstructure development during solidification, all of which impact on mechanical behavior.

TL;DR: In this article, a 3D transient finite element model of laser cladding by powder injection is introduced to investigate the effects of laser pulse shaping on the process, where the interaction between powder and melt pool is assumed to be decoupled and as a result, the melt pool boundary is first obtained in the absence of powder spray.

TL;DR: In this article, a pulsed Nd:YAG laser was used to deposit multi-layer overlapped cladding on low carbon steel substrate using dynamic powder blowing technique, and the results showed that fully dense and crack free clad surfaces of WC-Co with an excellent metallurgical bonding and low dilution were deposited.

TL;DR: In this article, a 3D transient numerical approach for modeling the multilayer laser solid free-form fabrication (LSFF) process is presented, where coupled thermal and stress domains are numerically obtained assuming a decoupled interaction between the laser beam and powder stream.

TL;DR: In this paper, a 3D heat transfer finite element model for laser powder-bed fusion (LPBF) was developed for accurately predicting melt pool dimensions and surface features, which can be used to reduce the process/material development costs.