A practical approach on temperature variation in Selective Laser Melting with a novel heat transfer model

The following are the process assumptions made in this modeling:

i. The laser spot is in a circular shape. ii. The powder particles are in spherical form. iii. The particles are assumed to be randomly

and closely packed. This is due to the finite and uniform stability according to the natural geometry of spheres (Bezdek et al. 1998).