Caracterización de partes reparadas de vehículos siniestrados

Abstract

This work presents the characterization of repaired parts at damaged vehicles, highlighting the mechanical, physical and microstructure properties by tensile, hardness, metallography and spark tests made at Stress Analysis and Vibration (LAEV), Extractive Metallurgy, Metallography, Wear and Failure Laboratories at Escuela Politécnica Nacionl, EPN. The theory indicates parts, operation, types of structures and automobile bodies used by vehicle manufacturers that provide passive safety for the occupants, defining the deformable automobile parts to be analyzed, trademark and model. The results were obtained by a proper selection of cutting process to the specimens of the structural elements to maintain their properties. The changes undergone by the material are identified in three groups of specimens: the first in an area where there has not been any deformation, the second at sector where the part was deformed and straightened at room temperature and the third where the part were straightened at 80ºC. To establish the characteristics and behavior of automotive part materials, the NTE, INEN, ASTM, JIS standards were used in cars with the highest number of units in the local (Quito) and national market, for which seven striken units were selected, that they had a kind of lateral, frontal and scope collision. Finally conclusions and references are indicated.