Análisis y evaluación de penetración de soldadura GMAW mediante ensayos metalográficos en autopartes rieles de chasis y barra de tablero producidos por la empresa METALTRONIC S.A.

Abstract

The objective of the project was the implementation of destructive assays especially of metallographies in the Company Metaltronic S.A, dedicated to the industry autopartist, in which the analysis and evaluation of the welding penetration was carried out. Whose results were measured through a microscope and with the useable of the software Amcap v3.0.9, which is used to capture the image visualised in the microscope and after used in the module Measurement, from which measurable data is obtained and it is contrasted with the parameters and criteria of acceptance established in the technical rule GMW-14058, which establishes the approbation criteria in assembled auto parts, for which it was necessary to carry out macrographies as part of the micrographic assay. The same have a process of preparation of the test tube for which the application of technological rules referring the metallography was necessary such as ASTM E3-11 which take on the recommendations of the type of destructive assays in complement to the rule ASTM E-340, which specifically details the references to macrographies in different materials. According to the rule GMW-14058, the principles links of the auto parts analysed was defined, to make the essay from which 14 evaluative points are established in the different chassis rails and 9 points on the bar of the dashboard. The obtained results were successful in fulfilling with all the criteria established by the rule GMW-14058.