| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 47.62 MB | Adobe PDF |
Advisor(s)
Abstract(s)
O presente trabalho foi desenvolvido durante um estágio na empresa LaniRobotics e surge através
da necessidade de se efetuar um estudo sobre capacidade de otimização do processo de fabrico
Fused Deposition Modeling (FDM). O FDM é um tipo de manufatura aditiva cada vez mais presente
na indústria atual, auxiliando diversas áreas devido à sua versatilidade, flexibilidade e
adaptabilidade.
Num mercado onde cada vez mais a monitorização, o acompanhamento e a automação são
características chave, este processo de fabrico apresenta características que tornam a sua utilização
muito desejável. Apesar de apresentar muitas e fortes vantagens relativamente aos restantes
processos de fabrico, possui as suas limitações, tal como qualquer outro processo. No entanto, o
desenvolvimento constante deste processo, tem vindo a reduzir, ou até mesmo eliminar, algumas
destas limitações.
Neste sentido, foi definido como objetivo deste trabalho, analisar os diversos parâmetros e
propriedades do processo de impressão FDM, de 3 eixos, não planar. Este estudo foi realizado com
o intuito de analisar a capacidade de otimização do processo de impressão FDM, através de uma
técnica de impressão diferente da típica impressão planar, com recurso a camadas tridimensionais
(3D).
Para esta análise, foram efetuados diversos ensaios e simulações, de modo a perceber quais as
principais alterações obtidas com a aplicação da impressão não planar, e também, simular diversas
metodologias de fatiamento e geração de caminhos de impressão. Para tal, foram analisadas as
principais características da impressora utilizada e realizadas modificações para possibilitar um
aumento das geometrias possíveis de ser estudadas.
Todos os dados recolhidos tiveram como principal objetivo encontrar formas de otimizar os
parâmetros e características de impressão, tais como a qualidade superficial, a resistência mecânica
e o ângulo máximo de impressão, através da técnica de uma impressão não planar, para
impressoras FDM de 3 eixos. Não obstante, o presente estudo teve também como propósito a
procura de métodos e técnicas capazes de ultrapassar algumas das limitações deste tipo de
processo de fabrico.
Através deste trabalho foi possível concluir que a implementação da impressão não planar, em
impressoras FDM de 3 eixos, resultam num melhoramento da qualidade superficial e da resistência
mecânica das peças impressas, e também num aumento do ângulo máximo de impressão.
The present work was developed during an internship at the company LaniRobotics and arises from the need to carry out a study of the optimization capacity of the Fused Deposition Modeling (FDM) manufacturing process. FDM is an additive manufacturing process increasingly present in today's industry, helping several areas due to its versatility, flexibility and adaptability. In a market where, more and more, monitoring and automation are key features, this manufacturing process has characteristics that make its use very desirable. Despite presenting many strong advantages compared to other manufacturing processes, it has its limitations just like any other process. However, the constant development of this process has been reducing, or even eliminating, some of these limitations. In this sense, the objective of this work was defined as analyzing the various parameters and properties of the 3-axis, non-planar FDM printing process. This study was carried out with the aim of analyzing the optimization capacity of the FDM printing process, through a printing technique different from typical planar printing, using three-dimensional (3D) layers. For this analysis, several tests and simulations were carried out, to understand the main changes obtained with the application of non-planar printing, and to simulate different slicing methodologies and generation of printing paths. To this end, the main characteristics of the printer used were highlighted and modifications were introduced to enable an increase in the geometries possible to be studied. All data collected had the main objective of finding ways to optimize printing parameters and characteristics, such as surface quality, mechanical resistance, and maximum printing angle, through the technique of non-planar printing, for 3-axis FDM printers. However, the present study also aimed to search for methods and techniques capable of overcoming some of the limitations of this type of manufacturing process. Through this work it was possible to conclude that the implementation of non-flat printing, on 3- axis FDM printers, resulted in an improvement in the surface quality and mechanical resistance of the printed parts, and in an increase in the maximum printing angle.
The present work was developed during an internship at the company LaniRobotics and arises from the need to carry out a study of the optimization capacity of the Fused Deposition Modeling (FDM) manufacturing process. FDM is an additive manufacturing process increasingly present in today's industry, helping several areas due to its versatility, flexibility and adaptability. In a market where, more and more, monitoring and automation are key features, this manufacturing process has characteristics that make its use very desirable. Despite presenting many strong advantages compared to other manufacturing processes, it has its limitations just like any other process. However, the constant development of this process has been reducing, or even eliminating, some of these limitations. In this sense, the objective of this work was defined as analyzing the various parameters and properties of the 3-axis, non-planar FDM printing process. This study was carried out with the aim of analyzing the optimization capacity of the FDM printing process, through a printing technique different from typical planar printing, using three-dimensional (3D) layers. For this analysis, several tests and simulations were carried out, to understand the main changes obtained with the application of non-planar printing, and to simulate different slicing methodologies and generation of printing paths. To this end, the main characteristics of the printer used were highlighted and modifications were introduced to enable an increase in the geometries possible to be studied. All data collected had the main objective of finding ways to optimize printing parameters and characteristics, such as surface quality, mechanical resistance, and maximum printing angle, through the technique of non-planar printing, for 3-axis FDM printers. However, the present study also aimed to search for methods and techniques capable of overcoming some of the limitations of this type of manufacturing process. Through this work it was possible to conclude that the implementation of non-flat printing, on 3- axis FDM printers, resulted in an improvement in the surface quality and mechanical resistance of the printed parts, and in an increase in the maximum printing angle.
Description
Keywords
Additive Manufacturing Fused Deposition Modeling Non-planar 3D Printing Optimization Parameterization Manufacturing process