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Avaliação do impacto do Lean Six Sigma (LSS) na otimização dos processos: uma investigação-ação sobre a aplicação da abordagem DMAIC numa indústria do setor automóvel
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| 1.78 MB | Adobe PDF |
Advisor(s)
Abstract(s)
O presente estudo pretende investigar de que forma a abordagem Lean Six Sigma permite a otimização de processos e redução de desperdício, promovendo a sustentabilidade económica das organizações e garantindo a sua competitividade no mercado.
Para atingir os objetivos propostos, realizou-se uma revisão da literatura de forma a compreender os conceitos de Lean e Six Sigma e identificar as potencialidades da sua convergência numa abordagem denominada por Lean Six Sigma (LSS).
Foram estudadas várias ferramentas de LSS e os seus efeitos na performance das organizações, especialmente o impacto, em termos económicos, da redução do desperdício e otimização da eficiência.
Recorrendo ao método de investigação-ação acompanhou-se a implementação integral de um projeto Six Sigma numa empresa do setor automóvel dedicada ao fabrico de componentes. O projeto Six Sigma foi implementado com o objetivo de reduzir a taxa de rejeição de um componente específico, considerado como crítico por utilizar uma nova tecnologia ainda em desenvolvimento. Durante a investigação foram aprofundadas as metodologias DMAIC, análise SIPOC, diagrama de C&E e D.o.E. Com a realização da investigação-ação, foi possível identificar as limitações e dificuldades sentidas pela equipa nas diferentes fases de implementação da abordagem DMAIC.
Da investigação desenvolvida foram retiradas conclusões relativamente à eficácia e eficiência da implementação de abordagens LSS e o impacto na otimização dos processos e redução do desperdício, visando atingir a sustentabilidade das organizações.
The goal of this study is to investigate how Lean Six Sigma approach can improve processes and reduce waste, promoting economical sustainability, ensuring companies market competitiveness. To achieve targets proposed, a literature review was developed aiming to understand Lean and Six Sigma concepts and identify how the convergence of both approaches can represent positive results. Several LSS tools were studied focusing on their performance impacts and the meaning in terms of economical results, efficiency, and waste reduction. Using action research method, a Six Sigma project was monitored throughout the implementation process. This project was implemented in an automotive company dedicated to produce components and accessories. The goal of the Six Sigma project was to reduce scrap rate in a specific component that uses a recent technology still under development. During this investigation, a deep dive analysis was conducted to DMAIC, SIPOC analysis, C&E matrix and D.o.E tools. With the action-research methodology it was possible to identify weaknesses and difficulties felt during different steps of DMAIC implementation process. From this study several conclusions were collected regarding LSS effectiveness and efficiency and the impact in both optimization and was reduction, aiming to achieve organizational sustainability.
The goal of this study is to investigate how Lean Six Sigma approach can improve processes and reduce waste, promoting economical sustainability, ensuring companies market competitiveness. To achieve targets proposed, a literature review was developed aiming to understand Lean and Six Sigma concepts and identify how the convergence of both approaches can represent positive results. Several LSS tools were studied focusing on their performance impacts and the meaning in terms of economical results, efficiency, and waste reduction. Using action research method, a Six Sigma project was monitored throughout the implementation process. This project was implemented in an automotive company dedicated to produce components and accessories. The goal of the Six Sigma project was to reduce scrap rate in a specific component that uses a recent technology still under development. During this investigation, a deep dive analysis was conducted to DMAIC, SIPOC analysis, C&E matrix and D.o.E tools. With the action-research methodology it was possible to identify weaknesses and difficulties felt during different steps of DMAIC implementation process. From this study several conclusions were collected regarding LSS effectiveness and efficiency and the impact in both optimization and was reduction, aiming to achieve organizational sustainability.
Description
Keywords
Lean Six Sigma SIPOC DMAIC Otimização Redução de desperdício Sustentabilidade económica Optimization Waste reduction Economical sustainability