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Continuous Casting Scheduling with Constraint Programming.

TitleContinuous Casting Scheduling with Constraint Programming.
Publication TypeConference Paper
Year of Publication2014
AuthorsGay, Steven
EditorSchaus, Pierre
Tertiary AuthorsSmedt, Vivian De
Conference NameCP2014: International Conference on Principles and Practice of Constraint Programming
Conference LocationLyon, France

Although the Steel Mill Slab problem (prob 38 of CSPLib) has already been studied by the CP community, this approach is unfor- tunately not used anymore by steel producers since last century. Continuous casting is preferred instead, allowing higher throughput and better steel quality. This paper presents a CP model related to scheduling of op- erations for steel making with continuous casting. Activities considered range from the extraction of iron in the furnace to its casting in con- tinuous casters. We describe the problem, detail a CP scheduling model that is finally used to solve real-life instances of some of the PSI Metals’ customers.

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