ISSUE 4/2013

/// 02
Brach, D.; Köser, O.; Kalkunte, B. FEM-based crack analysis of ingot molds

The current article provides an overview of a possible new approach to cover problems of mold failure during an ingot casting production. Due to the high thermal loads subjected on the mold during the casting process, cracks can appear after some production cycles. A modeling approach to understand the crack formation by casting simulation is presented. The simulation takes into account the internal stresses during the mold production and shows how these stresses further develop during a number of ingot casting production cycles. The simulated stresses are analyzed in detail and compare well with the location of the observed cracks. An outlook shows how the investigations will proceed to identify technical measures to reduce mold failure.




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