Análisis numérico con validación experimental del proceso de embutición para la obtención de una pieza cóncava hueca rectangular de acero de bajo carbono

Abstract

The preset work carries out experimental test of the metal forming process to obtain a concave work – piece. This work is done to validate the corresponding numerical model carried out in the software LS / DYNA. Metal forming is important in industry because it allows saving material in the manufacturing process by controlling complex stress and strain leves at different flow rates. Forty-three specimens were tested. The metal forming requires force were assessed analytically and used as input for the numerical model. The numerical model did not include parameters such as temperature and lubrication. Deformation of mested elements locat in three lines (OX, AB and CD) were compared with those obtained experimentally. The longest errors for deformation along the width was 87%, and for a single element was 42 %. It is concludes the actual numerical model reflect the experiment in areas. This is because important parameters such as lubrication were not included. However, the numerical model offers an important and necessary complement for the experimental laboratory guide.