Mejora de procesos en el sector de laminados de acero
Ó. Soto-Sánchez, M. Sierra-Paradinas, M. Gallego, J. Martín Campo, F. Gortázar, A. Alonso-Ayuso
Uno de los procesos esenciales en el sector de laminados de acero es el corte de material. Entre ellos está el proceso de corte longitudinal en el cuál bobinas de acero de ancho y diámetro variable se cortan a lo largo dando lugar a bobinas más estrechas (flejes), según demanda. Esta demanda viene dada en peso de producto y puede servirse en varios flejes, no necesariamente iguales. Para cumplir los requisitos de peso máximo de los flejes, pueden realizarse cortes transversales. Presentamos un caso real de una empresa que realiza la planificación manualmente. Hemos desarrollado un algoritmo heurístico que permite obtener buenas soluciones en muy pocos minutos, mejorando la operación actual (menos sobrante, menos bobinas y mejor ajuste al peso demandado). En él, se combina un constructivo aleatorizado con una búsqueda local de entorno variable. Se presentará una comparativa entre la operativa actual, el heurístico y una alternativa exacta basada en optimización lineal discreta.
Keywords: cutting stock problem, heuristics
Scheduled
Invited Session Math-In. Industrial Applications IV
June 9, 2022 5:10 PM
Auditorium
Other papers in the same session
F. Reche Lorite, J. M. García Torrecillas, L. Téllez Ramírez
J. Huete Cubillo, A. Elías Fernández, J. M. Morales González, S. Pineda Morente
D. Garcia Heredia, B. Rybicki
A. Alonso Ayuso, E. Nuñez Domingo, S. Santamaría, V. González-Iniesta
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6/8/22
Visit Alhambra
Tomorrow, Thursday, we will visit the Alhambra. 1. At 7:00 p.m., buses will start leaving from the door of the Hotel Granada Center (in front of the door of the Faculty of Sciences) 2. Upon arrival, groups with guides will be organized. 3. There will be groups in English language. These groups will wait at the destination until the arrival of all buses. 4. After the visit to the Alhambra we will walk to the Carmen de los Mártires to have a cocktail. 5. On the way back, we can go back by bus, which will leave from the same place where they left us at the Alhambra. 6. Although the way to the Alhambra by bus seems long, it really is close to the city. We invite you, whoever wishes, to go down for a pleasant walk. 7. Do not forget to take your Alhambra ticket and your identity card or passport. The document must be the same whose number matches the ticket number you have.
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5/31/22
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5/27/22
Gala Dinner
It opens the possibility that anyone who is registered for the conference, and wants non-registered companions to attend the gala dinner, can do so by paying the price of this dinner (80 euros VAT included). This payment must be made before June 1 (inclusive). To do this, contact with [email protected]
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5/23/22
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To access the Alhambra on the visit on Thursday 9, it is obligatory to present the identification document whose reference was sent to the organization (eurocongress)
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5/16/22
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