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Authors
Abstract(s)
O cenário tecnológico contemporâneo tem sido marcado por um crescimento exponencial no uso de tecnologias de impressão 3D, em particular, a popularidade dos polímeros PLA e ABS que têm aumentado consideravelmente. No entanto, esse aumento na produção e utilização de peças impressas traz consigo o desafio substancial da gestão dos resíduos resultantes de defeitos de impressão, rejeições e produtos indesejáveis. O descarte inadequado desses resíduos origina uma carga ambiental significativa, dada a natureza não biodegradável de certos polímeros. Assim, é necessário explorar soluções sustentáveis e eficazes para lidar com essa questão, minimizando o impacto ambiental e promovendo a reutilização desses materiais. Este estudo tem como objetivo abordar esse desafio ao propor o projeto de um triturador especializado e otimizado para a reciclagem eficaz de resíduos de PLA e ABS resultantes de impressões por fused filament fabrication. O triturador proposto terá a finalidade de transformar esses resíduos em matéria-prima reutilizável, como filamentos, que podem ser reintroduzidos no ciclo de produção de impressão 3D. O projeto do triturador consiste no dimensionamento e/ou seleção de todos os componentes constituintes do mesmo, para que este cumpra eficientemente o seu propósito. Para tal recorrer-se-á a equipamentos de processamento de granulado para ser possível definir certas características de projeto, nomeadamente extrusoras de termoplásticos.
Abstract The contemporary technological landscape has been marked by exponential growth in the use of 3D printing technologies, in particular the popularity of PLA and ABS polymers has increased considerably. However, this increase in the production and use of 3D printed parts brings with it the substantial challenge of managing waste resulting from printing defects, rejects and unwanted products. Improper disposal of this waste creates a significant environmental burden, given the non-biodegradable nature of certain polymers. It is therefore necessary to explore sustainable and effective solutions to deal with this issue, minimizing the environmental impact and promoting the reuse of these materials. This study aims to address this challenge by proposing the design of a specialized and optimized shredder for the effective recycling of PLA and ABS waste resulting from fused filament fabrication 3D prints. The proposed shredder aims to transform this waste into reusable raw materials, such as filaments, which can be reintroduced into the 3D printing production cycle. The design of the shredder consists of dimensioning and/or selecting all of its components so that it fulfills its purpose efficiently. To do this, granulate processing equipment, like thermoplastic extruders, will be used to define certain design characteristics.
Abstract The contemporary technological landscape has been marked by exponential growth in the use of 3D printing technologies, in particular the popularity of PLA and ABS polymers has increased considerably. However, this increase in the production and use of 3D printed parts brings with it the substantial challenge of managing waste resulting from printing defects, rejects and unwanted products. Improper disposal of this waste creates a significant environmental burden, given the non-biodegradable nature of certain polymers. It is therefore necessary to explore sustainable and effective solutions to deal with this issue, minimizing the environmental impact and promoting the reuse of these materials. This study aims to address this challenge by proposing the design of a specialized and optimized shredder for the effective recycling of PLA and ABS waste resulting from fused filament fabrication 3D prints. The proposed shredder aims to transform this waste into reusable raw materials, such as filaments, which can be reintroduced into the 3D printing production cycle. The design of the shredder consists of dimensioning and/or selecting all of its components so that it fulfills its purpose efficiently. To do this, granulate processing equipment, like thermoplastic extruders, will be used to define certain design characteristics.
Description
Trabalho de Projeto para obtenção do grau de Mestre em Engenharia Mecânica, na Área de Especialização de Manutenção e Produção
Keywords
Fabrico aditivo Polímeros Trituração Granulado Análise Estrutural Additive manufacturing Polymers Shredding Granulate Structural analysis