Abstract
Iterations of thermomechanical modeling on DC casting of high-strength crack-prone alloy billets have been conducted to understand billet start-up phase thermal stress development and to optimize tooling design. Transient thermal stress development during cast start at the billet butt, billet surface, and inside the billet are investigated; Connection of cracking with stress development at billet butt is presented; Effects of starting head, wiper placement, and wiper placement location on the thermal stress development are also examined. The billet surface rebound temperatures and cast-in TC temperatures from the modeling agree well with those measured in the laboratory and in the field; the casting campaigns on the AirSlip® mold package exhibit great billet quality and high pit recovery.
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The authors are very grateful to Wagstaff Inc. for granting permission to publish this paper and co-workers for assistance to develop high-strength crack-prone alloy AirSlip® casting technology in large diameters.
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Zhang, B., Grealy, G.P. (2024). Thermomechanical Modeling on AirSlip® Billet DC Casting of High-Strength Crack-Prone Aluminum Alloys. In: Wagstaff, S. (eds) Light Metals 2024. TMS 2024. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-50308-5_128
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