Estudo e desenvolvimento de atomizador a gás vaseado no modelo hermiga 75/5 VI (EAC)
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Trabalho de Conclusão de Curso
Data
2024-08-18
Autores
Silva, Ana Beatriz de Oliveira
Gonçalves, Ana Júlia Morare
Bustamante, Lucas
Moraes, Nicolas Santos de
Gonçalves, Ana Júlia Morare
Bustamante, Lucas
Moraes, Nicolas Santos de
Orientador
Farias, Adalto de
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Texto completo (DOI)
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manufatura aditiva ,additive manufacturing ,pó metálico de alumínio,atomização a gás,peneiramento,bocal atomizador,aluminum metal powder,gas atomization,sieving,atomizing nozzle
Resumo
À medida que a consciência ecológica cresce no mundo industrial, as empresas estão cada vez mais engajadas em adotar soluções que reduzam seu impacto ambiental. Uma alternativa que vem ganhando relevância no cenário atual é a manufatura aditiva (MA) de materiais, também conhecida como impressão 3D. O método consiste na produção de objetos através da deposição de matéria-prima em camadas sucessivas, o que garante a redução no desperdício de materiais e aumento das flexibilidades de produção e prototipagem. Mundialmente, o Brasil representa apenas 2% do mercado mundial de manufatura aditiva. A importação de materiais metálicos não ferrosos utilizados neste processo, por exemplo, conta com altos valores de impostos, o que encarece a produção nacional de peças produzidas com MA de materiais metálicos, tornando-os menos competitivos. Tendo em vista as aplicações do pó metálico no processo de impressão 3D, o alumínio possui uma contribuição notória, sendo um metal versátil com uma boa combinação de leveza e resistência à corrosão. O que o torna ainda mais atrativo é seu ciclo de vida sustentável, tendo uma alta taxa de reciclagem. Segundo estudos realizados pela empresa de consultoria CRU Group (Inglaterra), até o ano de 2030 a demanda por alumínio deve crescer 40%. Por ser considerado um relevante aliado do meio ambiente, tal material está constantemente presente no cotidiano da sociedade, seja por meio de embalagens, produtos elétricos e automotivos. Com base nisso, o projeto AtomA tem como objetivo desenvolver um atomizador a gás para a produção de pó metálico de alumínio. As melhorias propostas consistem no desenvolvimento de um bocal atomizador, um componente crucial para esse processo, e no estudo da viabilidade de construir um equipamento com uma peneira acoplada. Atualmente, o pó metálico passa por um processo de peneiramento posterior à atomização, considerando que para a aplicação em impressões 3D são utilizados grãos de pó metálico com um tamanho entre 20 e 75 micrômetros. A ideia é mitigar a necessidade dessa operação sem prejudicar o processo atual. Para atingir esse objetivo, foram realizadas uma série de simulações térmicas, dinâmicas e estruturais a fim de validar se as mudanças propostas são viáveis para o processo.
As ecological awareness grows in the industrial world, companies are increasingly committed to adopt solutions to reduce their environmental impact. One alternative gaining relevance in the current scenario is additive manufacturing (AM) of materials, also known as 3D printing. This method consists in producing objects by depositing raw material in successive layers, ensuring a reduction in material waste and an increase in production and modeling flexibility. Globally, Brazil represents only 2% of the worldwide additive manufacturing market. The importation of non-ferrous metallic materials used in this process, for example, comes with high tax values, making the national production of parts produced with AM of metallic materials more expensive and less competitive. Considering the applications of metallic powder in the 3D printing process, aluminum has a notable contribution, being a versatile metal with a good combination of lightweight and corrosion resistance. What makes it even more attractive is its sustainable lifecycle, with a high recycling rate. According to studies conducted by the consulting company CRU Group (England), the demand for aluminum is expected to grow by 40% by the year 2030. Because it is considered an important ally to the environment, this material is constantly present in society's daily life, whether through packaging, electrical products, or automotive applications. Based on this, the AtomA project aims to develop a gas atomizer for the production of aluminum metal powder. The proposed improvements include the development of an atomizing nozzle, a crucial component for this process, and the feasibility study of constructing equipment with an integrated sieve. Currently, the metal powder undergoes a sieving process after atomization, considering that for 3D printing applications, metal powder grains with sizes between 20 and 75 micrometers are used. The idea is to mitigate the need for this operation without compromising the current process. To achieve this objective, a series of thermal, dynamic, and structural simulations were conducted to validate the feasibility of the proposed changes to the process.
As ecological awareness grows in the industrial world, companies are increasingly committed to adopt solutions to reduce their environmental impact. One alternative gaining relevance in the current scenario is additive manufacturing (AM) of materials, also known as 3D printing. This method consists in producing objects by depositing raw material in successive layers, ensuring a reduction in material waste and an increase in production and modeling flexibility. Globally, Brazil represents only 2% of the worldwide additive manufacturing market. The importation of non-ferrous metallic materials used in this process, for example, comes with high tax values, making the national production of parts produced with AM of metallic materials more expensive and less competitive. Considering the applications of metallic powder in the 3D printing process, aluminum has a notable contribution, being a versatile metal with a good combination of lightweight and corrosion resistance. What makes it even more attractive is its sustainable lifecycle, with a high recycling rate. According to studies conducted by the consulting company CRU Group (England), the demand for aluminum is expected to grow by 40% by the year 2030. Because it is considered an important ally to the environment, this material is constantly present in society's daily life, whether through packaging, electrical products, or automotive applications. Based on this, the AtomA project aims to develop a gas atomizer for the production of aluminum metal powder. The proposed improvements include the development of an atomizing nozzle, a crucial component for this process, and the feasibility study of constructing equipment with an integrated sieve. Currently, the metal powder undergoes a sieving process after atomization, considering that for 3D printing applications, metal powder grains with sizes between 20 and 75 micrometers are used. The idea is to mitigate the need for this operation without compromising the current process. To achieve this objective, a series of thermal, dynamic, and structural simulations were conducted to validate the feasibility of the proposed changes to the process.