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The numerical simulation is currently an essential tool in the automotive engineering because it is possible in the virtual stage of product development to evaluate the performance of a component in the level of stress that would it be submitted, as well as evaluating displacement, natural frequency, stiffness and to the feasibility of manufacturing. Due to the stringent emission standards and pollutant, as well as sustainability guidelines, the goal of any automotive design is always seeking the maximum structural performance with minimal possible mass. This premise leads directly to a numerical optimization problem, that seeks the maximum (or minimum) of a function, subject to several constraints. Numerical optimization techniques can be divided mainly into: shape optimization, parametric optimization and topology optimization. In order to relieve mass during the process of forming it is common to perform a cutting operation to remove material in parts that are less required.