Propuesta de un sistema de inventarios para el área de repuestos en el Concesionario CEPSA VW, con la aplicación de la filosofía de manejo Pull para incrementar la productividad del área

Abstract

This work was made in CEPSA Company, which sells the Volkswagen brand, in the car parts area, which has a total of 1594 items classified into 4 groups: mechanical, electronic, electrical and collision. To improve the inventory control within the company, an ABC classification of the car parts was made, where the car parts belonging to the classification B were chosen. The demand forecast was made by simple exponential smoothing with 2 exponential coefficients: 0.3 and 0.5. Also the items control was made individually and jointly, where the number of stockouts with the joint control improved by 3.5%; and the cost of having stockouts improved by 7.7%. The simulation was carried out in the WinQSB program, choosing the periodical review interval for a period of 3 years. The actual management was compared with the proposed through the inventory management indicators, the average aggregate inventory improved by 13.40% for the simulation. The rotation indicator was also improved by 44.26% with the joint control of items.