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Abstract(s)
Atualmente, a constante dinâmica dos mercados impulsiona a tecnologia para mudanças e evolução nos processos produtivos. Recentes melhorias nas técnicas de Fabricação Aditiva (FA) mudaram não só os materiais utilizados nestes processos, como também a qualidade das peças produzidas. A inclusão de materiais metálicos abriu novas oportunidades de aplicações para indústrias como a aeronáutica, automóvel e médica. A FA é um processo produtivo no qual um componente é produzido por consecutiva adição e compilação de camadas de material. A sua flexibilidade geométrica, associada às reduções de tempos e custos de produção, são as principais características que tornam estes processos tão procurados pelas indústrias mais exigentes.
Otimização Topológica (OT) é um tipo de otimização estrutural que calcula a distribuição ideal de material para um determinado problema. Por norma, os métodos de fabrico mais convencionais, como é o caso da maquinagem, não são capazes de produzir as geometrias complexas obtidas através de soluções de OT.
A combinação entre FA e OT está cada vez mais a ser utilizada para criação de componentes mais leves, mas simultaneamente resistentes, de modo a usufruir dos potenciais de ambas as tecnologias.
Este trabalho resume-se a todo um processo de desenvolvimento do design e otimização de um componente da porta de uma aeronave, para ser posteriormente produzido por FA. Foram definidas duas metodologias, uma de design e outra de processo produtivo, para facilitar a abordagem e resolução do problema.
Nowadays, the constant dynamics of the markets impel the technology for changes and evolution in the productive processes. Recent improvements in Additive Manufacturing (AM) techniques have changed not only the materials used in these processes, but also the quality of the parts produced. The inclusion of metallic materials has opened new application opportunities for industries such as aeronautics, automotive and medical. FA is a productive process in which a component is produced by consecutive addition and compilation of layers of material. Its geometric flexibility, coupled with reductions in production times and costs, are the key features that make these processes so sought by the most demanding industries. Topological Optimization (TO) is a type of structural optimization that calculates the optimal distribution of material for a given problem. Normally, the conventional manufacturing methods, such as machining, are not capable of producing the complex geometries obtained from TO solutions. The combination of AM and TO is increasingly being used to create lighter components, but simultaneously resilient, to take advantage of the potential of both technologies. This work summarizes an entire process of design development and optimization of na aircraft door component to be subsequently produced by AM. Two methodologies were defined, one of design and one of productive process, to facilitate the approach and resolution of the problem.
Nowadays, the constant dynamics of the markets impel the technology for changes and evolution in the productive processes. Recent improvements in Additive Manufacturing (AM) techniques have changed not only the materials used in these processes, but also the quality of the parts produced. The inclusion of metallic materials has opened new application opportunities for industries such as aeronautics, automotive and medical. FA is a productive process in which a component is produced by consecutive addition and compilation of layers of material. Its geometric flexibility, coupled with reductions in production times and costs, are the key features that make these processes so sought by the most demanding industries. Topological Optimization (TO) is a type of structural optimization that calculates the optimal distribution of material for a given problem. Normally, the conventional manufacturing methods, such as machining, are not capable of producing the complex geometries obtained from TO solutions. The combination of AM and TO is increasingly being used to create lighter components, but simultaneously resilient, to take advantage of the potential of both technologies. This work summarizes an entire process of design development and optimization of na aircraft door component to be subsequently produced by AM. Two methodologies were defined, one of design and one of productive process, to facilitate the approach and resolution of the problem.
Description
Keywords
Fabricação Aditiva de Metal Processos de Modelação Otimização Topológica Metalurgia do Pó Metal Additive Manufacturing Modeling Processes Topological Optimization Powder Metallurgy