Thesis PROPUESTA DE MEJORA A MODELO PRODUCTIVO DE MÁQUINA DE CORTE DE PLASMA CNC Y APLICACIÓN DE PILOTO PARA MÁQUINA DE CORTE METAL-MECÁNICA
Date
2018-04
Authors
ROSAS PAETZ, IÑAKI ANDRÉS
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Abstract
El proceso de corte es la base de la cadena productiva de la industria metal-mecánica. Esto se replica fielmente en la cadena productiva en el centro de distribución de “Küpfer Hnos” donde, si llegase a existir variabilidad en los tiempos de corte, el producto final no llegará a cumplir con las expectativas del cliente, impactando directamente en la visión externa de la empresa y, en su demanda futura. Para mitigar la variabilidad que es producida por los distintos factores que impactan a la línea de corte, se desea diseñar una propuesta de modelo productivo para la máquina de corte CNC plasma, a través de la filosofía Lean Management y aplicación de herramientas simples y económicas. Este proceso se inicia con un levantamiento del estado actual del proceso y riesgos, para así determinar, cuales son los tiempos de proceso y, revelar por consiguiente cuales son los cuellos de botella dentro de la cadena de corte. Además se buscó mejorar la seguridad de los trabajadores y de las máquinas. También, se buscó estandarizar el proceso al aplicar procedimientos de acuerdo a los puntos de la cadena productiva que necesiten mejora, aplicando las herramientas de trabajo de la filosofía Lean.Este proceso culmina con la creación de herramientas de gestión visual dentro de un plan piloto del modelo propuesto basado en la filosofía de Lean Management. Este proceso culmina con la creación de herramientas de gestión visual dentro de un plan piloto del modelo propuesto basado en la filosofía de Lean Management. Fruto de este trabajo se obtuvo un incremento en el porcentaje de valor agregado de la línea de corte, de un 4,2% a 5,7 %, junto a la disminución de los tiempos de 15,4%y 7,4% en los sub procesos de carga de material y corte; corte y descarga de material respectivamente y, se logra controlar la variabilidad de la producción desde un 15,79%a 3,71 %.
The cutting process is the base of the productive chain in the metal-mechanic industry. This is faithfully replicated in productive chain at the Kupfer Hnos’ distribution center, where, if there were to be any variability in the cutting times, the final product wouldn’t match the client’s expectations which would impact directly the company’s image and its demand in the future.In order to mitigate the variability produced by the diferent factors that aects the cutting line, one of the many goals of this work it is to design a proposal for a new productive model for the CNC plasma cutting machine using the Lean Management philosophy with simple and low cost tools.This process starts with an assessment of the current state of the chain of processes and risk measures, so as to determinate which are the processing times and there fore reveal the bottle necks within the chain of processes. Be sides, as a by product, improvements insecurity for workers and machines were developed. Also, the processes was standardized applying procedures according to the diferent components of the productive chain which required improvement, according to Lean Management philosophy. This process culminates with the creation of visual management tools as part of the pilot plan based on the Lean Management philosophy. This work had many fruits, it achieved an increase of the added value in the cutting line of 4.2% and 5.7% with a decrease of times of 15.4% and 7.4% in the sub processof material charge and cut, cut and download of the material respectively. It was also possible to control the production variability which started at a 15.79% at the beginning and descended to 3.71% at the end.
The cutting process is the base of the productive chain in the metal-mechanic industry. This is faithfully replicated in productive chain at the Kupfer Hnos’ distribution center, where, if there were to be any variability in the cutting times, the final product wouldn’t match the client’s expectations which would impact directly the company’s image and its demand in the future.In order to mitigate the variability produced by the diferent factors that aects the cutting line, one of the many goals of this work it is to design a proposal for a new productive model for the CNC plasma cutting machine using the Lean Management philosophy with simple and low cost tools.This process starts with an assessment of the current state of the chain of processes and risk measures, so as to determinate which are the processing times and there fore reveal the bottle necks within the chain of processes. Be sides, as a by product, improvements insecurity for workers and machines were developed. Also, the processes was standardized applying procedures according to the diferent components of the productive chain which required improvement, according to Lean Management philosophy. This process culminates with the creation of visual management tools as part of the pilot plan based on the Lean Management philosophy. This work had many fruits, it achieved an increase of the added value in the cutting line of 4.2% and 5.7% with a decrease of times of 15.4% and 7.4% in the sub processof material charge and cut, cut and download of the material respectively. It was also possible to control the production variability which started at a 15.79% at the beginning and descended to 3.71% at the end.
Description
Catalogado desde la version PDF de la tesis.
Keywords
CADENA DE PRODUCCION , INDUSTRIA METALMECANICA , LEAN MANAGEMENT , MAQUINA DE CORTE
