| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 6.88 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Atualmente, com a globalização, as organizações têm sido cada vez mais exigentes, as empresas veem-se obrigadas a evoluir cada vez mais, devido ao aumento da procura do consumidor, e às condições e benesses que lhes são dadas na hora de adquirir o produto ou serviço. Desta forma, obriga as organizações muitas vezes a reinventarem-se para diferenciarem-se das restantes. Assim o projeto realizado na Amorim Revestimentos teve como principais objetivos a redução do WIP e otimização do processo produtivo dos produtos de Acabamentos Finais 1 e 3. Uma das ferramentas Lean Manufacturing utilizadas para reduzir o WIP, os desperdícios e melhorar o rendimento das linhas de produção é o sistema Pull, e mais concretamente o mecanismo de controlo CONWIP. O sistema CONWIP, juntamente com o Mizusumashi, foi implementado em Acabamento Finais 1, caracterizada pela falta de controlo sobre o material em processo, problemas de abastecimento das linhas de produção e dos muitos desperdícios existentes em todo o processo produtivo, destacando-se os tempos de espera movimentos desnecessários, elevado WIP e lead times desajustados. Outro dos grandes problemas encontrados foi as elevadas paragens registadas na Colagem 9 devido ao pouco controlo de stock, desenvolvendo-se assim uma ferramenta de controlo de stock e produção. Para que fosse possível a implementação, foi necessário um estudo profundo de todo o processo produtivo dos produtos, a movimentação feita pela matéria prima desde que era iniciada até ser designado por produto acabado no Armazém e uma consulta aos dados históricos de produção dos produtos em questão. Para a resolução de todos os problemas identificados, foi desenvolvida uma heurística de roteamento para o Mizusumashi, e implementando o CONWIP, no principal produto da empresa, o Hydrocork. Através deste projeto, a empresa conseguiu obter uma redução entre 18 e 31 % do WIP e de 21 % do lead time de todos as gamas operatórias do Hydrocork, eliminar os movimentos desnecessários realizados pelo empilhador no abastecimento e libertação das linhas de produção e um maior controlo de stock na linha de produção inicial do processo produtivo, permitindo um aumento de 2 %na disponibilidade do OEE.
Nowadays, with globalization, organizations have been increasingly demanding. Companies are forced to evolve more and more, due to the increase in consumer demand, and the conditions and benefits they are given when purchasing the product or service. Therefore, it forces organizations to often reinvent themselves to differentiate themselves from the rest. Thus, the project carried out in Amorim Revestimentos, had as main objectives the reduction of the WIP and optimization of the production process of the Finishing Touches 1 and 3. One of the Lean Manufacturing tools used to reduce the WIP, the wastes and to improve the yield of the production lines is the Pull system, and more specifically the CONWIP control mechanism. The CONWIP system, along with Mizusumashi, was implemented in Finishing Touches 1, characterized by a lack of control over the material in process, supply problems of the production lines and the many wastes existing throughout the production process, highlighting the waiting times, unnecessary movements, high WIP and mismatched lead times. Another of the major problems encountered, was the number of stops recorded at Collage 9 due to poor stock control, thus developing a stock control and production tool. In order to implement it, an in-depth study was necessary of the entire production process of the products, the movement of the raw material from the beginning of the process until it was designated as finished product in the Warehouse, and a consultation with the historical production data of the products in question. To solve all identified problems, a routing heuristic was developed for Mizusumashi, and CONWIP was implemented in the company's main product, Hydrocork. Through this project, the company was able to achieve a reduction 18%-31% in the WIP and 21% in lead time of all Hydrocork operating ranges, eliminate the unnecessary movements made by the stacker in the supply and release of the production lines, and a greater control of stock in the initial production line of the productive process, allowing a 2% increase in OEE availability.
Nowadays, with globalization, organizations have been increasingly demanding. Companies are forced to evolve more and more, due to the increase in consumer demand, and the conditions and benefits they are given when purchasing the product or service. Therefore, it forces organizations to often reinvent themselves to differentiate themselves from the rest. Thus, the project carried out in Amorim Revestimentos, had as main objectives the reduction of the WIP and optimization of the production process of the Finishing Touches 1 and 3. One of the Lean Manufacturing tools used to reduce the WIP, the wastes and to improve the yield of the production lines is the Pull system, and more specifically the CONWIP control mechanism. The CONWIP system, along with Mizusumashi, was implemented in Finishing Touches 1, characterized by a lack of control over the material in process, supply problems of the production lines and the many wastes existing throughout the production process, highlighting the waiting times, unnecessary movements, high WIP and mismatched lead times. Another of the major problems encountered, was the number of stops recorded at Collage 9 due to poor stock control, thus developing a stock control and production tool. In order to implement it, an in-depth study was necessary of the entire production process of the products, the movement of the raw material from the beginning of the process until it was designated as finished product in the Warehouse, and a consultation with the historical production data of the products in question. To solve all identified problems, a routing heuristic was developed for Mizusumashi, and CONWIP was implemented in the company's main product, Hydrocork. Through this project, the company was able to achieve a reduction 18%-31% in the WIP and 21% in lead time of all Hydrocork operating ranges, eliminate the unnecessary movements made by the stacker in the supply and release of the production lines, and a greater control of stock in the initial production line of the productive process, allowing a 2% increase in OEE availability.
Description
Keywords
Melhoria Contínua OEE Lean CONWIP Continuous Improvement