The objective of the thesis was to improve the quality of casting with the help of computer simulations and to analyze the result of each simulation. The focus was on the formation of porosity and air bubbles during the press cycle. Casting simulations were performed with MagmaSoft software. First, we described the process of high pressure die casting and the most common errors that occur and functions of MagmaSoft software. We continued with the simulation and the analysis of the casting with the existing casting parameters followed by simulations with modified casting parameters which improved the quality of the casting and in terms of simulations, the customer requirements were met.
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