Desenvolvimento de solda por fricção linear (FSW) em liga de alumínio

• Autor(a) principal: Bazan, Renan Gimenez [UNESP]
• Data de Publicação: 2018
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/203053; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2019-10-22/000918565.pdf
• topic: Soldagem; Fricção; Ligas de aluminio; Welding

The Friction Stir Welding (FSW) is a process that doesn't occur by means of melting the envolved materials, it happens by a mechanical mixture of the base material. Broadly used in the aeronautical industry, pressure vessels and automitive industry, due to the welded joint caracteristics being in conformity with base metal. This works aims to develop e study the Friction Stir Welding in a comercial aluminum alloy. The development of a tool as studied, wich respected the pre-stabilished parameters of the aluminum plate, knowing that the tool differs according to the material and its dimension. Such process can be acheived using high cost machinery, wich possess, uniquely, the function of making this kind of weld, or by an alternative equipment, as the utilized in this project - a milling machine. With the development of the tool and tis due process parameters, the welded material was studied in order to analyse and understand the quality of the welded joint through traction, fatigue, microhardness test, futhermore macroscopic an microscopic analysis, to observe the struture. The welded joint has showed significant loss of mechanical properties, but it was satisfactory, reaching a maximum tensile stress around 90% of the base material, and with a ductility loss of approximately 59.5%, which is directly connected with the increase of 7.85% of the hardness in the nugget region, nevertheless it was satisfatory