Selective Laser Melting (SLM) is a 3D printing technique very spreadly used in several engineering fields such as biomedicine, aerospace, and electronics. SLM is based on the use of a high-power laser which melts metal powder to create the desired object. In this work, we focus on the control of the intensity of the moving laser beam with respect to the temperature distribution on the powder layer. The idea is that, depending on the path, the intensity can be reduced in some areas, still hot from the previous passing, saving up energy costs. To solve this problem, a reduced order modeling technique is introduced. In particular, we exploit the Proper Generalized Decomposition on both a stationary and a transient configuration. This method constitutes an efficient tool to deal with parametric settings, providing accurate approximations while containing the well-known curse of dimensionality.     «

Selective Laser Melting (SLM) is a 3D printing technique very spreadly used in several engineering fields such as biomedicine, aerospace, and electronics. SLM is based on the use of a high-power laser which melts metal powder to create the desired object. In this work, we focus on the control of the intensity of the moving laser beam with respect to the temperature distribution on the powder layer. The idea is that, depending on the path, the intensity can be reduced in some areas, still hot fro...     »