Loading...
Publication
Análise de não conformidades repetitivas na indústria aeronáutica
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 4.65 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Qualquer organização desenvolve a sua atividade com o objetivo de entregar os seus produtos com zero defeitos. No entanto, nem sempre os requisitos dos produtos são cumpridos e ocorrem Não Conformidades. Neste projeto trata-se um tipo de não conformidade repetitiva, que ocorre num programa produtivo de uma empresa centenária na indústria aeronáutica, em causa o Flushness out of Tolerance. Este defeito tem pesado financeiramente à organização nos últimos dois anos, pelo que este facto exigiu uma análise mais detalhada do processo. Para caracterizar melhor o problema e para a identificação das causas das não conformidades, utilizaram-se técnicas de qualidade mais convencionais, tais como Diagrama de Pareto, Diagrama Ishikawa e checkList de verificação. Analisaram-se os dados por tipo de defeito (acima ou abaixo da tolerância) e por subconjunto, para desmistificar alguma preponderância do mesmo, sendo que se pôde concluir que o defeito deriva de causas gerais e não particulares, pois todas as causas identificadas estavam na origem de ambos os tipos de defeitos. Estratificaram-se as causas identificadas e realizou-se uma avaliação simplificada do risco para o produto das mesmas. Após a análise efetuada, foram propostas à organização melhorias ao nível da manutenção das ferramentas de desgaste, método de inspeção, entre outras, capazes de mitigar este defeito no programa.
Any organization develops his activity to deliver its products with zero defects. However, product requirements are not always met, and non-conformities occur. This project aims treat a type of repetitive non-conformity, which in a productive program of a century-old company in the aeronautical industry, namely “Flushness out of Tolerance”. This defect has punished the organization financially over the past two years, so was required a more detailed analysis of the process. In order to characterize the problem and to identify the causes of Non-Conformities, the most conventional quality techniques were used, such as Pareto Diagram, Ishikawa Diagram and checklists. The data were analyzed by type of defect (above or below the tolerance) and by sub element, to show some preponderance of it and it was concluded that the defect derives from general causes and not from particular causes, due all the causes identified were at the origin of both type of defects. The identified causes were stratified and a simplified risk assessment for the product was made for each cause. After the analysis carried out, improvements were proposed to organization namely in the maintenance of cutting tools, method of inspection, and others, to mitigate this defect in the program.
Any organization develops his activity to deliver its products with zero defects. However, product requirements are not always met, and non-conformities occur. This project aims treat a type of repetitive non-conformity, which in a productive program of a century-old company in the aeronautical industry, namely “Flushness out of Tolerance”. This defect has punished the organization financially over the past two years, so was required a more detailed analysis of the process. In order to characterize the problem and to identify the causes of Non-Conformities, the most conventional quality techniques were used, such as Pareto Diagram, Ishikawa Diagram and checklists. The data were analyzed by type of defect (above or below the tolerance) and by sub element, to show some preponderance of it and it was concluded that the defect derives from general causes and not from particular causes, due all the causes identified were at the origin of both type of defects. The identified causes were stratified and a simplified risk assessment for the product was made for each cause. After the analysis carried out, improvements were proposed to organization namely in the maintenance of cutting tools, method of inspection, and others, to mitigate this defect in the program.
Description
Keywords
Não Conformidades Qualidade Ferramentas da Qualidade Estudo do Processo Non-Conformities Quality Quality Tools Process Study