SciELO - Scientific Electronic Library Online

 
vol.84 número200A comparison of trajectory granular based algorithms for the location-routing problem with heterogeneous fleet (LRPH)A comparison between artificial neuronal networks and classical methods for the prediction of mobility between transport zones. A case study in the Campo de Gibraltar Region (Spain) índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


DYNA

versão impressa ISSN 0012-7353

Resumo

UNFRIED-SILGADO, Jimy; TORRES-ARDILA, Alexander; CARRASCO-GARCIA, Juan Carlos  e  RODRIGUEZ-FERNANDEZ, Johnnatan. Effects of shoulder geometry of tool on microstructure and mechanical properties of friction stir welded joints of AA1100 aluminum alloy. Dyna rev.fac.nac.minas [online]. 2017, vol.84, n.200, pp.202-208. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v84n200.55787.

In this work were studied the effects of shoulder geometry of tool on microstructure evolution and mechanical properties of friction stir welded joints of AA1100 aluminum alloy using a milling machine. Three designs of shoulder geometry were evaluated with the aim to induce different distributions of thermal cycles in welding regions. Thermal cycles were measured using thermocouples and a data system acquisition. A microstructural characterization and crystallographic analysis of the welded regions were carried out using optical, scanning electron microscopy, and electron backscattering diffraction. The mechanical properties were measured by transverse tension, guided bend and hardness tests. The weldability behavior was established based on the experimental data. Results showed that the features shoulder tools produced an important effect on the thermal cycles, generating a plasticized wide region and biggest grain size in stir zone when compared with flat shoulder tool.

Palavras-chave : Friction Stir Welding; aluminum alloys; tools; microstructure; mechanical properties.

        · resumo em Espanhol     · texto em Inglês     · Inglês ( pdf )