Die casting tool for casting aluminum alloys endures cyclic thermal and mechanical loads. Particular parts of the tool are subjected to high loads. With the goal of simplifying the maintenance process, parts of the tool are constructed as separate bolted segments. In this M. Sc. thesis, we made a thermo-mechanical analysis in Abaqus software environment. Contacts between tool parts and cyclic load, which appear during high pressure aluminum casting, were taken into account. First, we analysed a reference construction which experienced bolt failure and confirmed cyclic loading as a responsible mechanism. Based on the analysis of thermo-mechanical state in die casting tool, modification of bolt joint was proposed. The new construction results in more favourable stress state.
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