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For cast iron automotive parts, the automated shape optimization technique is a powerful design tool that usually enhances performance and reduces overall cost. Possessing the solid finite element model of what could be considered a starting point, first trial or initial design, commercially available structural synthesis software are able to optimally relocate the nodes, thus creating an optimal final shape. This is very suitable for parts obtained by metal melting for two main reasons: first, such components generally tend to be massive (posing the challenge to reduce weight) and second, the manufacturing method itself presents wide freedom regarding the shapes possible to be obtained (augmenting the chances the computationally generated shape is feasible in practice).