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Implementação de Estratégias de Melhoria Contínua numa Linha de Tratamento de Peças Metálicas
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| Documento em Acesso Embargado até dia 07-10-2027. Tente solicitar cópia ao autor carregando no ficheiro | 4.22 MB | Adobe PDF |
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Resumo(s)
Este relatório de estágio aborda a implementação de estratégias de melhoria contínua
numa linha de tratamento de peças metálicas, com destaque para a redução dos tempos
de setup num equipamento semiautomático, a Mepsa CNC. Trata-se de um problema
comum que afeta a eficiência produtiva, a competitividade nas indústrias, reduz a
flexibilidade e aumenta os custos operacionais. O objetivo principal foi otimizar este
processo na Mepsa CNC e melhorar a eficiência operacional, utilizando ferramentas
Lean.
A abordagem metodológica adotada foi científica e quantitativa, iniciando-se com um
enquadramento teórico sobre a filosofia Lean, seguida do caso de estudo, no qual foi
aplicada a metodologia Single Minute Exchange of Die (SMED).
A implementação das propostas de melhoria prevê uma redução significativa dos tempos
de setup, aumentando a eficiência operacional e a disponibilidade do equipamento.
Especificamente, com as melhorias de curto prazo, é possível reduzir o tempo de setup
em 34,19%, enquanto a médio/longo prazo esta redução poderia atingir 52,47%. Estes
resultados implicariam um aumento da disponibilidade do equipamento em 2,95% a
curto prazo e 4,52% a médio/longo prazo. Sendo importante considerar que existem
outros parâmetros que influenciam a disponibilidade e, consequentemente, o OEE, o que
justifica estas variações percentuais relativamente pequenas.
Apesar disso, foi também identificado que a Mepisurfaces enfrentava uma perda
financeira semanal de cerca de 230€, o equivalente a 12.000€ anuais, devido aos tempos
de setup. No entanto, com a implementação das melhorias de curto prazo esta perda
poderia ser reduzida em 4.000€ por ano, enquanto com as de médio/longo prazo em
6.000€ anuais.
This internship report addresses the implementation of continuous improvement strategies in a metal parts treatment line, with a focus on reducing setup times on a semiautomatic machine, the Mepsa CNC. This is a common issue that affects production efficiency, competitiveness in industries, reduces flexibility, and increases operational costs. The main objective was to optimize this process on the Mepsa CNC and improve operational efficiency using Lean tools. The methodological approach adopted was scientific and quantitative, beginning with a theoretical framework on Lean philosophy, followed by a case study in which the Single Minute Exchange of Die (SMED) methodology was applied. The implementation of the proposed improvements is expected to result in a significant reduction in setup times, increasing operational efficiency and equipment availability. Specifically, with short-term improvements, it is possible to reduce setup time by 34.19%, while in the medium/long term, this reduction could reach 52.47%. These results would imply an increase in equipment availability of 2.95% in the short term and 4.52% in the medium/long term. It is important to consider that other parameters influence availability and, consequently, OEE, which justifies these relatively small percentage variations. Nevertheless, it was also identified that Mepisurfaces faced a weekly financial loss of around €230, equivalent to €12,000 annually, due to setup times. However, with the implementation of short-term improvements, this loss could be reduced by €4,000 per year, while with medium/long-term improvements, it could be reduced by €6,000 annually.
This internship report addresses the implementation of continuous improvement strategies in a metal parts treatment line, with a focus on reducing setup times on a semiautomatic machine, the Mepsa CNC. This is a common issue that affects production efficiency, competitiveness in industries, reduces flexibility, and increases operational costs. The main objective was to optimize this process on the Mepsa CNC and improve operational efficiency using Lean tools. The methodological approach adopted was scientific and quantitative, beginning with a theoretical framework on Lean philosophy, followed by a case study in which the Single Minute Exchange of Die (SMED) methodology was applied. The implementation of the proposed improvements is expected to result in a significant reduction in setup times, increasing operational efficiency and equipment availability. Specifically, with short-term improvements, it is possible to reduce setup time by 34.19%, while in the medium/long term, this reduction could reach 52.47%. These results would imply an increase in equipment availability of 2.95% in the short term and 4.52% in the medium/long term. It is important to consider that other parameters influence availability and, consequently, OEE, which justifies these relatively small percentage variations. Nevertheless, it was also identified that Mepisurfaces faced a weekly financial loss of around €230, equivalent to €12,000 annually, due to setup times. However, with the implementation of short-term improvements, this loss could be reduced by €4,000 per year, while with medium/long-term improvements, it could be reduced by €6,000 annually.
Descrição
Palavras-chave
Análise Ecrs Filosofia Lean Indústria Metalomecânica Oee Setup Smed