Aplicação do lean manufacturing : o uso da ferramenta Single Minute Exchange of Die (SMED) no centro de usinagem - um estudo de caso
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Tipo
TCC
Data de publicação
2024
Periódico
Citações (Scopus)
Autores
Sousa, Wesllayne de Kássia Silva de
Orientador
Ricci, Marlucy Godoy
Título da Revista
ISSN da Revista
Título de Volume
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Programa
Resumo
O presente trabalho de pesquisa se caracteriza como um estudo de caso que
foi realizado no setor de usinagem de uma empresa que fabrica motores elétricos,
equipamentos eletromecânicos, peças injetadas em termoplásticos e alumínio, além
de realizar fundição em alumínio. O objetivo principal se concentrou em aplicar o
Lean Manufacturing para reduzir desperdícios, com ênfase na técnica de Single-
Minute Exchange of Die (SMED) que visa diminuir o tempo de setup para menos de
10 minutos. O setup é o processo de troca de ferramentas e ajustes necessários
para produzir de uma peça A para uma peça B, incluindo limpezas durante essa
transição. Para auxiliar na implementação do SMED foi adotada também a metodologia
5S, outra ferramenta Lean. Além disso, o estudo abordou o conceito de Overall
Equipment Effectiveness (OEE) e identificou que longos períodos de setup e ajustes
contribuem significativamente para as perdas de OEE no centro de usinagem.
Durante a pesquisa, foi realizada uma cronometragem do setup, classificando as
atividades em internas e externas e, em seguida, reclassificando as atividades
internas possíveis para externas. As melhorias implantadas com o uso do SMED
resultaram em um tempo de setup inferior a 10 minutos.
The present research work is characterized as a case study conducted in the machining sector of a company that manufactures electric motors, electromechanical equipment, thermoplastic and aluminum injection-molded parts, and also conducts aluminum casting. The main objective focused on applying Lean Manufacturing to reduce waste, with an emphasis on the Single-Minute Exchange of Die (SMED) technique aimed at reducing setup time to less than 10 minutes. Setup is the process of changing tools and making necessary adjustments to produce from part A to part B, including cleanups during this transition. To assist in the implementation of SMED, the 5S methodology, another Lean tool, was also adopted. Additionally, the study addressed the concept of Overall Equipment Effectiveness (OEE) and identified that long setup and adjustment periods contribute significantly to OEE losses in the machining center. During the research, setup timing was conducted, classifying activities as internal and external, and then reclassifying possible internal activities as external. The improvements implemented using SMED resulted in a setup time of less than 10 minutes.
The present research work is characterized as a case study conducted in the machining sector of a company that manufactures electric motors, electromechanical equipment, thermoplastic and aluminum injection-molded parts, and also conducts aluminum casting. The main objective focused on applying Lean Manufacturing to reduce waste, with an emphasis on the Single-Minute Exchange of Die (SMED) technique aimed at reducing setup time to less than 10 minutes. Setup is the process of changing tools and making necessary adjustments to produce from part A to part B, including cleanups during this transition. To assist in the implementation of SMED, the 5S methodology, another Lean tool, was also adopted. Additionally, the study addressed the concept of Overall Equipment Effectiveness (OEE) and identified that long setup and adjustment periods contribute significantly to OEE losses in the machining center. During the research, setup timing was conducted, classifying activities as internal and external, and then reclassifying possible internal activities as external. The improvements implemented using SMED resulted in a setup time of less than 10 minutes.
Descrição
Palavras-chave
lean manufacturing , SMED , setup , OEE , 5S , diagrama de espaguete , spaghetti diagram