SciELO - Scientific Electronic Library Online

 
vol.19 número2Influência da temperatura interpasse nas propriedades do aço inoxidável duplex durante a soldagem pelo processo a arco submerso índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Soldagem & Inspeção

versão impressa ISSN 0104-9224

Resumo

SANTOS, Tiago F. A.; TORRES, Edwar A.; HERMENGILDO, Tahiana F.C.  e  RAMIREZ, Antonio J.. Development of ceramic backing for friction stir welding and processing. Soldag. insp. [online]. 2014, vol.19, n.2, pp.104-113. ISSN 0104-9224.  http://dx.doi.org/10.1590/0104-9224/SI1902.02.

Usually, the workpiece is deformed during the friction stir welding, due to high applied loads. Consequently, fully and consolidated friction stir welded joints as well as tools life time can be affected promoting unscheduled manufacturing stops which favorites decreasing the welding productivity. Furthermore, the workforce is dislocated to not predicted maintenance steps. This work proposes the development of a special ceramic backing to joining and processing material using FSW technologies. Four ceramic deposits were tested over a steel plate , which allowed selecting those with less porosity and, thus, better strength. This backing allowed to obtain full penetration welds for duplex stainless steels, to resist high forces during engage for high strength low alloy steels and to obtain consolidated aluminum-steel dissimilar joints. For the last one, there was not adherence of the soft material in workpiece. In addition, the ceramic backing allowed confine the heat and plasticized metal, as well as developing established welding parameters.

Palavras-chave : Friction stir welding and processing; backing; full penetration.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons