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Advisor(s)
Abstract(s)
A constante evoluĆ§Ć£o industrial e a alta dependĆŖncia das empresas nos seus equipamentos industriais, faz com que seja essencial garantir o desempenho destes, quando expostos a determinadas condiƧƵes. Neste contexto, a manutenĆ§Ć£o industrial tem um contributo significativo para alcanƧar os objetivos definidos pelas empresas. Para tal, a implementaĆ§Ć£o de qualquer metodologia associada a manutenĆ§Ć£o depende de um conhecimento profundo da organizaĆ§Ć£o, para que a sua implementaĆ§Ć£o seja realizada de acordo com as necessidades da empresa. Posto isto, a presente dissertaĆ§Ć£o, realizada entre novembro de 2019 e agosto de 2020 (com interrupĆ§Ć£o de 3 meses devido Ć pandemia mundial provocada pelo COVID-19) numa empresa de acabamento de rolhas, visa a implementaĆ§Ć£o da metodologia TPM (Total Productive Maintenance), com especial incidĆŖncia nos pilares da manutenĆ§Ć£o autĆ³noma e manutenĆ§Ć£o preventiva. Esta metodologia, jĆ” se encontrava em desenvolvimento noutras unidades fabris do grupo, razĆ£o pela qual se desenvolveu a implementaĆ§Ć£o do TPM nesta unidade. ApĆ³s uma anĆ”lise Ć situaĆ§Ć£o atual e ao histĆ³rico de avarias de todos os setores da unidade, o setor com mais avarias no perĆodo de outubro de 2018 a outubro de 2019, era a marcaĆ§Ć£o. Iniciou-se entĆ£o o desenvolvimento das operaƧƵes de manutenĆ§Ć£o autĆ³noma e introduziu-se uma lista de ajustes e verificaƧƵes a realizar pelos operadores. Para o desenvolvimento das operaƧƵes de manutenĆ§Ć£o autĆ³noma, foi necessĆ”rio rever todas as tarefas de manutenĆ§Ć£o preventiva que existiam e tambĆ©m reunir informaƧƵes dadas pelos operadores e tĆ©cnicos da manutenĆ§Ć£o. Algumas das tarefas de manutenĆ§Ć£o preventiva passaram assim para manutenĆ§Ć£o autĆ³noma, devido a sua simplicidade e tambĆ©m proximidade do operador com o equipamento. De forma a facilitar a interpretaĆ§Ć£o de todas as tarefas de manutenĆ§Ć£o, autĆ³noma ou preventiva, foram realizados POS ā Procedimentos de OperaĆ§Ć£o Standard, que consistem em fichas com ilustraƧƵes grĆ”ficas e instruƧƵes escritas acerca da tarefa a realizar. Estes POS facilitam muito a interpretaĆ§Ć£o e realizaĆ§Ć£o das tarefas e sĆ£o um grande avanƧo na implementaĆ§Ć£o da metodologia TPM. Por fim, foram apresentadas as melhorias obtidas atravĆ©s da anĆ”lise do OEE (Overall Equipment Effectiveness), da variaĆ§Ć£o do nĆŗmero de manutenƧƵes preventivas a realizar e tambĆ©m da variaĆ§Ć£o do tempo gasto em manutenƧƵes preventivas.
The constant industrial evolution and the high dependence of companies on their industrial equipment, makes it essential to guarantee their performance, when exposed to certain conditions. In this context, industrial maintenance has a significant contribution to achieving the objectives defined by companies. For this, the implementation of any methodology associated with maintenance depends on a deep knowledge of the organization, so that its implementation is carried out according to the needs of the company. That said, this dissertation, carried out between November 2019 and August 2020 (with a 3-month interruption due to the global pandemic caused by COVID-19) in a stopper finishing company, aims to implement the TPM (Total Productive Maintenance) methodology, with special focus on the pillars of autonomous maintenance and preventive maintenance. This methodology was already being developed in other manufacturing units of the group, which is why the implementation of TPM in this unit was developed. After an analysis of the current situation and the history of faults in all sectors of the unit, the sector with the most faults in the period from October 2018 to October 2019, was the appointment. Then, the development of autonomous maintenance operations started and a list of adjustments and checks to be carried out by operators was introduced. For the development of autonomous maintenance operations, it was necessary to review all the preventive maintenance tasks that existed and also to gather information provided by operators and maintenance technicians. Some of the preventive maintenance tasks have thus passed to autonomous maintenance, due to its simplicity and also the proximity of the operator to the equipment. In order to facilitate the interpretation of all maintenance tasks, autonomous or preventive, POS - Standard Operating Procedures were carried out, which consist of cards with graphic illustrations and written instructions about the task to be performed. These POSs greatly facilitate the interpretation and execution of tasks and are a major step forward in the implementation of the TPM methodology. Finally, the improvements obtained through the analysis of OEE (Overall Equipment Effectiveness), the variation in the number of preventive maintenances to be performed and also the variation in the time spent on preventive maintenance were presented.
The constant industrial evolution and the high dependence of companies on their industrial equipment, makes it essential to guarantee their performance, when exposed to certain conditions. In this context, industrial maintenance has a significant contribution to achieving the objectives defined by companies. For this, the implementation of any methodology associated with maintenance depends on a deep knowledge of the organization, so that its implementation is carried out according to the needs of the company. That said, this dissertation, carried out between November 2019 and August 2020 (with a 3-month interruption due to the global pandemic caused by COVID-19) in a stopper finishing company, aims to implement the TPM (Total Productive Maintenance) methodology, with special focus on the pillars of autonomous maintenance and preventive maintenance. This methodology was already being developed in other manufacturing units of the group, which is why the implementation of TPM in this unit was developed. After an analysis of the current situation and the history of faults in all sectors of the unit, the sector with the most faults in the period from October 2018 to October 2019, was the appointment. Then, the development of autonomous maintenance operations started and a list of adjustments and checks to be carried out by operators was introduced. For the development of autonomous maintenance operations, it was necessary to review all the preventive maintenance tasks that existed and also to gather information provided by operators and maintenance technicians. Some of the preventive maintenance tasks have thus passed to autonomous maintenance, due to its simplicity and also the proximity of the operator to the equipment. In order to facilitate the interpretation of all maintenance tasks, autonomous or preventive, POS - Standard Operating Procedures were carried out, which consist of cards with graphic illustrations and written instructions about the task to be performed. These POSs greatly facilitate the interpretation and execution of tasks and are a major step forward in the implementation of the TPM methodology. Finally, the improvements obtained through the analysis of OEE (Overall Equipment Effectiveness), the variation in the number of preventive maintenances to be performed and also the variation in the time spent on preventive maintenance were presented.
Description
Keywords
Total Productive Maintenance OEE ManutenĆ§Ć£o AutĆ³noma ManutenĆ§Ć£o Preventiva Autonomous Maintenance Preventive Maintenance