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Abstract(s)
A evolução da indústria ao longo do último século permitiu que atualmente seja possível
entregar produtos com melhor qualidade e com preços reduzidos ao cliente. Estes resultados
foram alcançados com a implementação das ferramentas lean, que têm como principal objetivo
a eliminação de desperdícios ao longo do fluxo de produção. A metodologia lean começou a
ser desenvolvida no início do século XX, porém foi no final da segunda guerra mundial que os
engenheiros da Toyota começaram a implementar esta ferramenta na indústria,sabendo à priori,
que precisavam de otimizar os seus processos para ganhar vantagem competitiva face à
concorrência. A partir daí o lean foi sendo implementado nas empresas, quer industriais, quer
comerciais, como forma de garantir que os custos finais do produto ou do serviço prestado são
reduzidos, garantindo o nível de qualidade.
O principal objetivo desta dissertação foi a redução do número de deformações
encontradas nas espumas de poliuretano dos assentos do modelo Mégane da Renault. Para
atingir o objetivo foi utilizada a metodologia DMAIC, que é uma das ferramentas lean e que
consiste num processo cíclico de cinco etapas: definir, medir, analisar, melhorar e controlar.
Esta metodologia foi selecionada porque como é cíclica permite que se algo durante o processo
não esteja a seguir o procedimento estabelecido, ou seja, que permita atingir o resultado
pretendido, se possa retroceder ao ponto onde se detetou a falha.
Terminada a implementação da metodologia DMAIC conseguiram atingir-se os objetivos
iniciais, sendo possível registar a diminuição do número de ocorrências de espumas dos
assentos deformadas. Os resultados obtidos podem ser melhorados no futuro, continuando o
processo de melhoria contínua diário.
ABSTRACT: The evolution of the industry over the last century has now made possible to deliver products with better quality and reduced prices to the costumer. These results were achieved with the implementation of lean tools, which have as main objective the elimination of waste along the production flow. The lean methodology started to be developed at the beginning of the 20th century, however it was at the end of the second world war that Toyota engineers started to implement this tool in the industry, knowing a priori, that they needed to optimize their processes to gain competitive advantage in the face of competition. Since then, lean has been implemented in companies, whether industrial or commercial, as a way to ensure that the final costs of the product or service provide are reduced, ensuring the level of quality. The main objective of this dissertation was to reduce the number of deformations found in the polyurethane foams of Renault’s Mégane model car seats. To achieve the objective, the DMAIC methodology was used, which is one of the lean tools and which consists of a five-step cyclical process: defining, measuring, analyzing, improving and controlling. This methodology was selected because as it is cyclical it allows that if something during the process is not following the established procedure, that is, that allows to reach the desired result, it can go back to the point where it failed. After the implementation of the DMAIC methodology, the initial objectives were achieved, and it was possible to record the decrease in the number of deformed seat foam occurrences. The results obtained can be improved in the future, continuing the process of continuous daily improvement.
ABSTRACT: The evolution of the industry over the last century has now made possible to deliver products with better quality and reduced prices to the costumer. These results were achieved with the implementation of lean tools, which have as main objective the elimination of waste along the production flow. The lean methodology started to be developed at the beginning of the 20th century, however it was at the end of the second world war that Toyota engineers started to implement this tool in the industry, knowing a priori, that they needed to optimize their processes to gain competitive advantage in the face of competition. Since then, lean has been implemented in companies, whether industrial or commercial, as a way to ensure that the final costs of the product or service provide are reduced, ensuring the level of quality. The main objective of this dissertation was to reduce the number of deformations found in the polyurethane foams of Renault’s Mégane model car seats. To achieve the objective, the DMAIC methodology was used, which is one of the lean tools and which consists of a five-step cyclical process: defining, measuring, analyzing, improving and controlling. This methodology was selected because as it is cyclical it allows that if something during the process is not following the established procedure, that is, that allows to reach the desired result, it can go back to the point where it failed. After the implementation of the DMAIC methodology, the initial objectives were achieved, and it was possible to record the decrease in the number of deformed seat foam occurrences. The results obtained can be improved in the future, continuing the process of continuous daily improvement.
Description
Keywords
Lean Espumas Desperdício DMAIC Defeitos