sequencing

Sequencing and Scheduling in Coil Coating with Shuttles

  • Wiebke Höhn
  • Marco E. Lübbecke
  • Felix G. König
  • Rolf H. Möhring
    • Categories (Mixed) Integer Linear Programming, Graphs and Matroids, Production and Logistics Tags , , , , , ,

    We consider a complex planning problem in integrated steel production. A sequence of coils of sheet metal needs to be color coated in consecutive stages. Di erent coil geometries and changes of coatings may necessitate time-consuming setup work. In most coating stages one can choose between two parallel color tanks in order to reduce setup times. … Read more

    Production design for plate products in the steel industry

  • Sanjeeb Dash
  • Jayant Kalagnanam
  • Chandra Reddy
  • Sang Hwa Song
    • Categories Applications - OR and Management Sciences, Production and Logistics Tags , , , ,

    We describe an optimization tool for a multistage production process for rectangular steel plates. The problem we solve yields a production design (or plan) for rectangular plate products in a steel plant, i.e., a detailed list of operational steps and intermediate products on the way to producing steel plates. We decompose this problem into subproblems … Read more