Determinación del rango óptimo de las variables de soldadura e implementación de un sistema de control de calidad en el proceso de fabricación de estructuras metálicas de la Planta Industrial Instrumental Inc.

Abstract

The purpose of this document is to determine the optimal range of welding variables and to implement a quality control operation system in the process of manufacturing of metal structures of the Instrumental Inc Company, as a solution to the continuous welding reprocessing in the final product, which is implemented mainly for the production and quality areas, mainly for the manufacture of monopoles and metal beams. The methodology developed is based in the circle of continuous improvement, the statistical control of processes and the six sigma, for the creation of an experimental design, which all variables with greater problem can be verified and attack them directly increasing the efficiency in the production. According to the experimental design and the tests performed, results were obtained such as a 90% decrease in weld defects, better appearance of the weld bead, and a statistical process control that allows continuous monitoring of the welds. Main variables of soldering avoiding defects in the final product. The work carried out allowed to establish the optimal ranges of current, voltage and welding speed in which the process is stable with specific welding procedures for each structure taking as reference the WPS developed for each type of joint.