| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 3.81 MB | Adobe PDF |
Authors
Abstract(s)
A impressão 3D, também conhecida como manufatura aditiva, tem verificado um
crescimento exponencial, e como tal, várias indústrias o têm aplicado em diversas áreas
nos seus processos de produção, permitindo-lhes obter diferentes tipos de peças com
rapidez e a baixo custo.
Assim, o principal objetivo do presente trabalho consiste em analisar a viabilidade da
introdução da produção aditiva na produção de sobressalentes, de modo que seja possível
alcançar um ciclo logístico mais eficiente, mais concretamente na fase de aquisição, uma
vez que se estaria a adotar a produção Just-in-Time. Permitiria uma redução lead time dos
artigos, e, consequentemente, no tempo de espera das Unidades Navais, não colocando
em causa a sua prontidão.
Por forma a alcançar este objetivo, num primeiro momento esta dissertação explica o
conceito de impressão 3D, o seu surgimento e desenvolvimento, as suas diferentes
tecnologias e materiais utilizados, e por fim as suas áreas de aplicação e respetivas
vantagens e desvantagens.
De seguida, partindo de uma base de dados de todos os sobressalentes da área de
material G – sobressalentes eletromecânicos – adquiridos diretamente ao mercado e
requisitados através de emergency requirement, foram selecionados, tendo em
consideração critérios previamente estabelecidos e as limitações referentes à
disponibilidade da informação e à existência dos sobressalentes em depósito, aqueles
considerados como viáveis para a manufatura aditiva.
Por fim, com recurso a softwares de modulação direcionados para a impressão 3D,
serão realizadas estimativas do tempo e custo de impressão para as peças anteriormente
selecionadas, e, posteriormente, comparadas ao lead-time e custo de aquisição ao
fornecedor, de modo a reunir evidências que permitam demonstrar se que a impressão 3D
é uma opção viável para a produção de alguns sobressalentes na Marinha.
3D printing, also known as additive manufacturing, has seen exponential growth, therefore, several industries have introduced it in their production processes, allowing them to obtain different types of parts quickly and at low cost in various areas. Thus, the main goal of the present work is to analyze the feasibility of introducing 3D printing in the production of spare parts, in order that it is possible to achieve a more efficient logistic cycle, more specifically in the acquisition phase. Since Just-in-Time production would be adopted, there would be a reduction in the spare parts lead time, and, consequently, in the waiting time of the Marine Units, not calling into question their readiness. As such, to achieve this goal, at first this dissertation explains the concept of 3D printing, its emergence and development, its different technologies and the materials used, and finally its areas of application, advantages, and disadvantages. Then, starting from a database of all spare parts in the G material area – electromechanical spares – purchased directly from the market and ordered through an emergency requirement, they were selected, considering previously established criteria and the limitations regarding the availability of information. and the existence of spare parts in storage, those considered viable for additive manufacturing. Finally, using modulation software for 3D printing, estimates will be made about the time and cost of printing, for the previously selected parts, thus compared to the provider cost and lead-time, in order to gather evidence to demonstrate whether 3D is a viable option, or not, for the spare parts production in the Portuguese Navy.
3D printing, also known as additive manufacturing, has seen exponential growth, therefore, several industries have introduced it in their production processes, allowing them to obtain different types of parts quickly and at low cost in various areas. Thus, the main goal of the present work is to analyze the feasibility of introducing 3D printing in the production of spare parts, in order that it is possible to achieve a more efficient logistic cycle, more specifically in the acquisition phase. Since Just-in-Time production would be adopted, there would be a reduction in the spare parts lead time, and, consequently, in the waiting time of the Marine Units, not calling into question their readiness. As such, to achieve this goal, at first this dissertation explains the concept of 3D printing, its emergence and development, its different technologies and the materials used, and finally its areas of application, advantages, and disadvantages. Then, starting from a database of all spare parts in the G material area – electromechanical spares – purchased directly from the market and ordered through an emergency requirement, they were selected, considering previously established criteria and the limitations regarding the availability of information. and the existence of spare parts in storage, those considered viable for additive manufacturing. Finally, using modulation software for 3D printing, estimates will be made about the time and cost of printing, for the previously selected parts, thus compared to the provider cost and lead-time, in order to gather evidence to demonstrate whether 3D is a viable option, or not, for the spare parts production in the Portuguese Navy.
Description
Keywords
Impressão 3D Manufatura aditiva Sobressalentes Eficiência Prontidão