Resumen de Metodología DFMA de rediseño del conjunto estructural electrosoldado de una máquina
In this thesis the methodology DFMA (Design for manufacturing and assembly) is applied to the efficient redesign of a bench of an industrial welded construction equipment in order to simplify the solutions and reduce costs. For this, the overall methodology DFMA was customized to the particularities of this type of structural base, although with the characteristics and stages of Concurrent Engineering. The first step of the methodology was to capture the technical functions to be performed by the bedplate, based on the analysis of an existing industrial equipment. For this, a graphic representation of captured functions could be integrated in the same CAD system that allowed synthesizing knowledge and enabling its transmission to the conceptual designers. Subsequently, in accordance with the possibilities of the layout design of the structural assembly, the optimal combination of materials and manufacturing processes for simplifying the design was determined. With this, it was proceeded to the interpretation and personalization of those guidelines aimed at manufacturing and assembly, in order to facilitate the generation of suggestions for simplifying design complexity. As a support to make a quantitative comparison between the redesigned solution and the original design, it was proposed to use a tool for assessing the complexity, which has a direct effect on production costs. To illustrate the results of the application of the methodology, it is shown a case redesign of a bedplate of a soil desintegrator for the ceramics industry to the stage of embodiment design. Finally conclusions and possible future work are presented.
