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This paper presents a mathematical model for batch sizing and scheduling with parallel machines consisting of a stage facing the manufacture of other items and the test run, where between these stages, there is the possibility of maintaining an intermediate stock items, which has limited capacity and storage costs . The problem is the sequencing and scheduling of items in parallel machines as well as sending these items to test cells, where items are subjected to functional testing for a fixed time in a high-temperature environment. This paper introduces one facing the implementation of an established demand for the planning horizon mathematical model, and by optimizing the use of cell load test, preventing its use with empty spaces in order to reduce costs in the production of various types of items that make up the production mix. To validate the model, we propose an application to real data obtained from a manufacturer of electronic items which is solved using CPLEX.

UM MODELO MATEMÁTICO APLICADO AO DIMENSIONAMENTO E SEQUENCIAMENTO DE LOTES EM MAQUINAS DISTINTAS EM PARALELO COM ESTOQUES INTERMEDIÁRIOS LIMITADOS