Diseño de un modelo de gestión de procesos para la mejora de productividad en la fabricación de cerraduras de combinación con la aplicación de herramientas lean manufacturing en una microempresa mecánica

Abstract

The micro mechanical company dedicated to the manufacture of combination locks for safes, requires optimizing the production process to meet the sales forecast for the year 2022 through an improvement in productivity with the implementation of lean manufacturing tools to eliminate waste in manufacturing, refine production processes and meet consumer expectations. For the development of this proposal, the starting point was an analysis of the current situation through the application of a non-experimental quantitative technique that allowed the collection of field information in the production area without interfering in the data, which was applied to all employees involved in the process, since it represents the entire sampling population, where a non-experimental strategy was established for the application of surveys and interpretation of the analysis of hypotheses. This analysis helped to demonstrate the dependence between dependent and independent variables by contrasting the significance level and the p-value and allowed to identify the main bottlenecks in the production line and the incidence of low productivity in the current conditions. This situation forced to propose a management model for the implementation of Lean Manufacturing 5's tools, which is estimated that in the first instance would reach 60 % of its compliance, triggering the need to implement an injection mold to improve the manufacturing process of the Inner Wheel by 20.2 %, which will contribute considerably to meet the demand and raise the Overall Equipment Effectiveness (OEE). To make the execution of this investment project feasible, NPV and IRR financial indicators have been established, resulting in a positive operation that reflects a feasibility for its implementation, which must be based on a cultural and disciplinary change and commitment of the entire organization.