Lean Manufacturing principles as well as Six Sigma methodology are approaches to Manufacturing Processes aimed at increasing equipment performance, thanks to focused activities and tools. When an equipment isn’t working according to its capability, there are different strategies we can adopt to regain its potential. When the situation is critical and many factors seem to affect equipment performance, starting an improvement Project can be the right solution. In this perspective, DMAIC and TPM methodologies suggest a series of steps to follow. They trace a route for improving equipment performance. Furthermore, results stability can be achieved only through an accurate equipment management. To ensure equipment reliability, we should consider Maintenance Engineering principles. This branch of Engineering gives us the tools necessary to maintain properly all entities in our Manufacturing Process. Exploiting Reliability Centered Maintenance helps to define customized Maintenance plans for each module of the Manufacturing Process. This should guarantee periodical inspections to avoid unplanned stops and transform Maintenance in a key factor in the Company organization. The scope of this paper is to present how we implemented these methodologies in a real working environment, their effect and a comparison with standard paths. Its aim is to give the opportunity to evaluate how all those methodologies can be adopted effectively and become the culture of a plant where they aren’t used yet.
I principi della Lean Manufacturing e dell’approccio Six Sigma ai Processi Manifatturieri sono in grado di aumentarne le performance grazie a mirate attività e specifici strumenti. Quando un Processo non sta garantendo la capacità attesa, abbiamo a disposizione diverse strategie per recuperare le potenzialità al momento inespresse. Quando le criticità appaiono complesse e diversi fattori sembrano collaborare a risultati insoddisfacenti, iniziare un Progetto di Miglioramento può essere la soluzione più opportuna. In questa prospettiva, le metodologie DMAIC e TPM sono le più indicate. Esse garantiscono un approccio sistematico alle criticità e strumenti per superarle e consolidare i risultati ottenuti. Inoltre, per garantire continuità ai risultati, una gestione accurata del Processo è essenziale. Per assicurare l’affidabilità dei vari moduli che costituiscono il Processo Manifatturiero, l’Ingegneria di Manutenzione è il riferimento ideale. Sfruttando l’approccio della Reliability Centered Maintenance, possiamo sviluppare piani di Manutenzione ad hoc per ogni modulo e carico di lavoro. Tutto ciò dovrebbe garantire l’eliminazione delle fermate non pianificate e trasformare la Manutenzione in una funzione chiave nell’Organizzazione aziendale. Lo scopo di questo elaborato è presentare come abbiamo implementato queste metodologie in un vero Processo Manifatturiero, i risultati ottenuti e un confronto con i passaggi usuali di progetti DMAIC o TPM. Il fine è dare l’opportunità di riflettere su come adottare le strategie discusse in precedenza, declinarle secondo le necessità e trasformarle in cultura in stabilimenti dove sono ancora sconosciute.
Improvement of a manufacturing process exploiting lean manufacturing and Six Sigma methodologies : a food company case study
TONON, ENRICO
2015/2016
Abstract
Lean Manufacturing principles as well as Six Sigma methodology are approaches to Manufacturing Processes aimed at increasing equipment performance, thanks to focused activities and tools. When an equipment isn’t working according to its capability, there are different strategies we can adopt to regain its potential. When the situation is critical and many factors seem to affect equipment performance, starting an improvement Project can be the right solution. In this perspective, DMAIC and TPM methodologies suggest a series of steps to follow. They trace a route for improving equipment performance. Furthermore, results stability can be achieved only through an accurate equipment management. To ensure equipment reliability, we should consider Maintenance Engineering principles. This branch of Engineering gives us the tools necessary to maintain properly all entities in our Manufacturing Process. Exploiting Reliability Centered Maintenance helps to define customized Maintenance plans for each module of the Manufacturing Process. This should guarantee periodical inspections to avoid unplanned stops and transform Maintenance in a key factor in the Company organization. The scope of this paper is to present how we implemented these methodologies in a real working environment, their effect and a comparison with standard paths. Its aim is to give the opportunity to evaluate how all those methodologies can be adopted effectively and become the culture of a plant where they aren’t used yet.File | Dimensione | Formato | |
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2017_04_Tonon.pdf
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Descrizione: Tesi completa di Laurea Magistrale
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https://hdl.handle.net/10589/133892