Otimização no corte de tubos estruturais: aplicação na indústria aeronáutica agrícola
Resumo
The Cutting Stock Problem consists of determining the best form to
cut units of material (objects in supply), producing a set of lesser units (demanded
item), with specific dimensions, that are ordered through an order wallet. To
minimize the loss of material this study described a method of evaluation and optimization
of the process planning of the cutting of metallic structural tubes used
in the manufacturing of small aircrafts for the agricultural aeronautic industry. In
order, to support the decisions in the cutting process it was developed an optimization
approach based on mathematical mixed integer programming models. The
mathematic models are resolved in GAMS/CPLEX, using the production data of
Neiva, an aeronautical company subsidiary of Embraer. The results showed that
it is possible obtain significant profits in the production in with the application of
mathematical models in the process of cut in the aeronautic industry. Mathematical
models have a potential to generate beneficial solutions in the production process
reducing the costs of production with the re-use of the leftovers.