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Advisor(s)
Abstract(s)
Num contexto industrial, todas as empresas procuram a otimização dos seus lucros.
Nesse sentido têm trabalhado fortemente em procedimentos que visam aumentar os
padrões de eficácia e de eficiência, assim como a redução ou eliminação dos desperdícios
inerentes aos processos produtivos. Hoje em dia, há uma preocupação crescente com as
questões ambientais, alterações climáticas e pegada ecológica. Surge também a
importância atribuída à qualidade dos produtos e serviços oferecidos pelas empresas.
Com base nestas medidas surgiram os primeiros conceitos de gestão designados hoje em
dia por “Lean Thinking”, e a indústria automóvel foi pioneira nesta área, com o sistema
de produção em massa (Ford) e com o sistema de produção Toyota.
Este relatório descreve o estágio curricular que foi realizado com objetivo de otimizar o
processo, reduzir os consumos ou desperdícios de matéria-prima e melhorar a qualidade
dos produtos, numa empresa que atua na área da metalomecânica de precisão, cujo foco
é a produção, transformação e tratamento superficial de peças metálicas, destinadas
principalmente à marroquinaria para clientes no setor do mercado de luxo.
Após análise do processo produtivo no departamento de maquinação CNC,
identificaram-se como sendo os principais problemas o posicionamento inconstante das
barras ou peças nos sistemas de aperto e o elevado desperdício de matéria-prima.
Propôs-se alteração da estratégia produtiva, nomeadamente os sistemas de aperto, a
geometria da matéria-prima inicial e o alinhamento das peças no bruto a maquinar. As
alterações promovem a utilização de ferramentas Lean, como o Standard Work, SMED,
Poka-Yoke e 5S. Para consolidar as escolhas, foi realizada uma análise de falhas (FMEA)
e um sistema de apoio à decisão (SAD) para avaliar a seleção da matéria-prima.
Apesar de não ter sido implementada, com a nova estratégia esperam-se obter melhorias
no aproveitamento de matéria-prima, na produtividade devido aos tempos de ciclo e no
retorno financeiro da referência analisada.
In an industrial context, all companies seek to optimize their profits. In this sense, they have worked hard on procedures that aim to increase effectiveness and efficiency standards, as well as reducing or eliminating waste inherent to production processes. Nowadays, there is a growing concern about environmental issues, climate change and ecological footprint. The importance attributed to the quality of products and services offered by companies also emerges. Based on these measures, the first management concepts today known as “Lean Thinking” emerged, and the automotive industry was a pioneer in this area, with the mass production system (Ford) and the Toyota production system. This report describes the curricular internship that was carried out with the objective of optimizing the process, reducing consumption or waste of raw materials and improving the quality of products, in a company that operates in the area of precision metalworking, whose focus is production, transformation and superficial treatment of metal parts, mainly intended for leather goods for customers in the luxury market sector. After analyzing the production process in the CNC machining department, the main problems were identified as the inconsistent positioning of bars or parts in the clamping systems and the high waste of raw materials. It was proposed to change the production strategy, namely the clamping systems, the geometry of the initial raw material and the alignment of the raw parts to be machined. The changes promote the use of Lean tools, such as Standard Work, SMED, Poka-Yoke and 5S. To consolidate the choices, a failure analysis (FMEA) and a decision support system (SAD) were carried out to evaluate the selection of raw materials. Although it has not been implemented, with the new strategy it is expected to obtain improvements in the use of raw materials, in productivity due to cycle times and in the financial return of the analyzed reference.
In an industrial context, all companies seek to optimize their profits. In this sense, they have worked hard on procedures that aim to increase effectiveness and efficiency standards, as well as reducing or eliminating waste inherent to production processes. Nowadays, there is a growing concern about environmental issues, climate change and ecological footprint. The importance attributed to the quality of products and services offered by companies also emerges. Based on these measures, the first management concepts today known as “Lean Thinking” emerged, and the automotive industry was a pioneer in this area, with the mass production system (Ford) and the Toyota production system. This report describes the curricular internship that was carried out with the objective of optimizing the process, reducing consumption or waste of raw materials and improving the quality of products, in a company that operates in the area of precision metalworking, whose focus is production, transformation and superficial treatment of metal parts, mainly intended for leather goods for customers in the luxury market sector. After analyzing the production process in the CNC machining department, the main problems were identified as the inconsistent positioning of bars or parts in the clamping systems and the high waste of raw materials. It was proposed to change the production strategy, namely the clamping systems, the geometry of the initial raw material and the alignment of the raw parts to be machined. The changes promote the use of Lean tools, such as Standard Work, SMED, Poka-Yoke and 5S. To consolidate the choices, a failure analysis (FMEA) and a decision support system (SAD) were carried out to evaluate the selection of raw materials. Although it has not been implemented, with the new strategy it is expected to obtain improvements in the use of raw materials, in productivity due to cycle times and in the financial return of the analyzed reference.
Description
Keywords
Indústria Metalomecânica Lean Thinking Melhoria Contínua Sistema de Apoio à Decisão