Integer and Constraint Programming for Batch Annealing Process Planning

@inproceedings{Hoeve2017IntegerAC,
  title={Integer and Constraint Programming for Batch Annealing Process Planning},
  author={Willem Jan van Hoeve and Sridhar R. Tayur},
  booktitle={CP},
  year={2017}
}
We describe an optimization application in the context of steel manufacturing, to design and schedule batches for annealing furnaces. Our solution approach uses a two-phase decomposition. The first phase groups together orders into batches using a mixed-integer linear programming model. The second phase assigns the batches to furnaces and schedules them over time, using constraint programming. Our solution has been developed for operational use in two plants of a steel manufacturer in North… 

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