Additive manufactured conformal cooling channels has proved beneficial for molds used for casting. These casting tools often endure cyclic thermal influences that lead to thermal fatigue. To increase the structural resistance to thermal fatigue, the mold should be designed with some compliance for thermal expansion. This can be achieved by applying lattice structures in some sections of the mold. These structures may also be used as crack stoppers to prevent cooling fluid leakage. By use of complex internal structures, enhanced thermal management is possible. The manufacturing of molds is also faster, with less use of material.
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