An Optimal Two-stage Algorithm for Slab Design Problem with Flexible Demands

The slab design and optimization problem of hot rolling provides a foundation to implement mass customization. This paper addresses the problem assuming the demands have flexible requirement in slab width and weight. A multi-objective optimizing model is built with equivalent weight, in which the weight and width of slab have interval values. A two-stage optimal algorithm is proposed to solve the model. The computational test shows the validity and effectiveness of the presented model and algorithm.