Our CompMech Group Member, Massimo Carraturo, is going to present his results about Applications of Finite Element Simulations in Additive Manufacturing Process Control at the II International Conference on Simulation for Additive Manufacturing, which will take place in Pavia, Italy, on September 11th-13th, 2019.
Modelling and simulations in AM technologies have experienced an exponential growth over the recent years in terms of both accuracy and efficiency. This work focuses on a phase-change heat transfer model and high-order discretization techniques to simulate laser powder bed fusion (LPBF) processes. Problematics concerning model calibration and computational efficiency are addressed by means of three different AM applications, showing the possibilities and the mutual benefits of interactions between experiments and numerical simulations in AM technologies. The first application consists of a parameter optimization study for the residual heat factor control algorithm. In the second one an innovative methodology for real-time feed-forward control of machine parameters is presented. Finally, the last application shows how a validated numerical method can be used to calibrate measurement instruments via uncertainty quantification. This work was carried out during his stay at the National Institute of Standard and Technology (NIST, Gaithersburg, MD, USA), together with Dr. Brandon Lane and Dr. Ho Yeung, and supervised by Dr. Stefan Kollmanssberger, Prof. Ernst Rank, Prof. Alessandro Reali, and Prof. Ferdinando Auricchio.
July 15th, 2019