Browsing by Author "Macassi, Iliana"

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Application of Kraljic and stowage techniques to define purchasing strategies to reduce cost overruns in a food service company
(LACCEI Inc., 2020-07) Pretell, Guillermo; Carvallo, Edgardo; Macassi, Iliana; Del Carpio, Christian
A prepared food supply company presents a cost overrun in the purchase of food of 20% with respect to the base price used in the fixing of the sale price of the rations, said cost overrun is due to bad planning since it is not counted with defined purchasing strategies and market conditions are not valued. After an analysis, cause - root, it is identified that the main cause of the cost overruns are unscheduled purchases, so the study area has been delimited to the acquisition and transport of products. The proposed solution to reduce cost overruns is based on the application of Kraljic in order to define the company's purchasing policies and strategies and the implementation of stowage techniques in food transportation and storage. Following the application of the aforementioned solutions, it was possible to mitigate the unscheduled purchase situations, bringing with it a 77.7% decrease in the cost overruns for the purchase of food products, and the ration cost overrun indicators were improved by 15% and purchases not programmed in 22%.
Model of Lean tools for the reduction of waste in the manufacture of non-metallic minerals
(LACCEI Inc., 2020-07) Abanto, Piero; Guzmán, Carlo; Carvallo, Edgardo; Macassi, Iliana; del Carpio, Christian
The present paper presents a model that combines tools such as SLP (Systematic Layout Planning), 5´s, Standardization of methods and Preventive Maintenance for the reduction of waste in the manufacture of non-metallic minerals. This RMI (Industrial Rocks and Minerals) production sector has a high growth potential. Around 5 to 20 million tons were produced in the 70s, 80s and 90s, and it increased between 25 and 100 million tons annually in the present millennium in Peru. The problem that is sought to attack is the high amount of material that is wasted in the production process in small and medium-sized companies in that sector. With the validation carried out on our model, results of a reduction of material waste from 135.1 tons / year to 55.6 tons / year were obtained. This meant a waste reduction of 58.8%. The implementation of 5's until the standardization stage indirectly impacted the other components. The result obtained with the design redesign model was from 46.1 tons / year to 16.32 tons / year (65%), the redesign reduces the travel distances with material, which generates less waste in transport. In addition, a reduction of 35 tons / year to 10.5 tons / year (70%) is validated with the pilot testing of the definition and standardization of the prior rock breakage method. Also, the preventive maintenance pilot testing to the cyclone dust extractor, reduced the machine stops and validated than waste is reduced from 54 tons / year to 28.8 tons / year (46.7%).
Modelo de Gestión de mantenimiento basado en Lean Manufacturing para incrementar la productividad de una empresa del sector de Plástico
(LACCEI, Inc., 2019-07) Ames, Victor; Vásquez, Walter; Macassi, Iliana; Raymundo, Carlos
La demanda actual del sector de plástico ha ido incrementando, logrando sobrepasar la productividad de las PYMES en los países en desarrollo como Perú. Dentro de este marco, la demanda es mayor que la oferta debido a la baja producción de las empresas, que presentan un alto índice de horas por falta de mantenimientos de las máquinas. La finalidad de resolver el problema principal es reducir las horas de baja productividad que representan una gran pérdida monetaria para la empresa. Es por ello, que al implementar este modelo de gestión de mantenimiento que es basado en Lean Manufacturing permitirá tener una amplia ventaja competitiva en el sector. Este modelo se validó implementando las herramientas TPM y SMED de la filosofía de Lean Manufacturing dentro de la planta de plásticos, logrando obtener resultados que determinan el grado de mejora de la productividad en la empresa. Por último, después de haber valido el modelo se concluye que podría incrementar la capacidad utilizada de la empresa en un 20% con la reducción de las mudas.
Process approach and SCOR model to reduce delivery delays for a maintenance equipment supplier for mineral transportation
(LACCEI Inc., 2021-07) Salas-Loayza, Fernando; Barboza-Miyoshi, Ricardo; Chavez-Soriano, Pedro; Ramos, Edgar; Salas-Castro, Rosa; Macassi, Iliana
This document presents the implementation of the SCOR and BPM model in a company that distributes equipment for the mining sector in Peru. Three levels of SCOR are used, the first two to identify the processes of the supply chain and the sub-processes of each of them, in the third level BPM is modeled and used where the processes are analyzed to detect the root cause of late delivery orders, generating the penalty payment. To reduce late orders, the processes and methods are redesigned. For the implementation, SCOR and BPM good practices are used for the development of the procedures, while the control and follow-up is done with the indicators that are also established in the SCOR model, expecting an improvement objective of up to 50% as proposed by other authors, so through simulation of improved processes it is obtained that result of order fulfillment is reduced by 3 weeks, achieving that orders delivered on time improve by 49% reaching objective proposed for this study.
Rediseño ergonómico para disminuir los TME en procesos manuales de una planta del sector de GLP para incrementar la eficiencia
(LACCEI Inc., 2021-07) Loa-Puris, Yakeline; Pro-Feijoo, Jorge; Macassi, Iliana; Ramos–palomino, Edgar
Factores como la repetición de movimientos, la aplicación de sobreesfuerzos durante sus actividades y las posturas incómodas debido al diseño disergonómico de las estaciones de trabajo; afectan en su rendimiento laboral y exponen a los trabajadores del proceso de envasado de GLP a riesgos de trastornos musculo esqueléticos. Estos factores generan una eficiencia del 62% en el proceso, un indicador bajo comparado con el 78.4% del sector. Debido a las causas que originan el problema, esta investigación tiene por motivo el análisis ergonómico de las estaciones de trabajo. El resultado es el rediseño ergonómico de la estación de pintado e inyectado basado en los principios de la antropometría, economía de movimientos y el estudio de posturas logrando reducir la fatiga muscular de los operarios. Gracias a los ajustes se consiguió un aumento en la eficiencia de 81% en el proceso de envasado.