The main difficulties of the work p

The main difficulties of the work performed are precisely related with the type of process modelled. The metalparts manufactured by this method typically are characterized by the complex geometry and by the thin wallthickness, which reach values of only 1 mm. These thin walls are the cause for which the mould needs to bepreheated before pouring, as in other case the liquid alloy would freeze during filling and the mould would notresult completely filled. The thickness of the mould walls is also small, with values between 5 and 12 mm.Moreover the pouring is performed under vacuum conditions. All these characteristics make very difficult the data recording at foundry. Additionally, the high number of variables implied in the process and the existence ofmanual operations increase the variability of the process and the difficulty of the adjustment.