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Aço Alumínio

9 TRABALHOS FUTUROS

Para futuros projetos de SAPNC em juntas soldadas alumínio-aço, se recomenda como complemento a este trabalho a realização dos seguintes estudos:

 A fabricação e a soldagem de juntas alumínio-aço de 2 mm de espessura com uma nova ferramenta. Esta deve ser formada por um ombro de 15 a 17 mm de diâmetro, com comprimento de pino de 1,6 mm. Esta ferramenta garantiria a obtenção de penetração total na junta com largura de cordão em torno de 15 mm e uso de DT menores, sendo recomendados valores entre 0,5 e 1,0 mm.

 Definir uma janela de parâmetros de soldagem maior que permitam a obtenção de CIM de forma estabelecer os mecanismos para sua formação.

 O desenvolvimento de juntas soldadas, para uma única espessura de chapa, com velocidades de avanço e rotação diferentes. Estas medições permitiriam estabelecer uma relação direta entre esses parâmetros e os mecanismos de geração de calor na junta: atrito e deformação.

 O estudo da recristalização na direção da linha da junta para confirmar ou descartar a ativação de um terceiro mecanismo de recristalização dinâmica na formação da ZM. Para isso, seria necessária a realização de juntas soldadas com parada súbita da ferramenta, a fim de congelar a microestrutura antes e depois da passagem da ferramenta.

 A avaliação da microestrutura no lado do aço, que permita determinar quais são e como agem os mecanismos de recuperação e recristalização na formação da ZTMAAço.

 A realização de estudos de textura nas diferentes regiões da junta por meio de EBSD, para se determinar o efeito do aço na formação ou não de textura na ZM.

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