Effect of flash butt welding parameters on mechanical properties of wheel rims
The effects of process variables on weld quality are being studied for the Flash Butt Welding of SPFH 590 steel. The resulting welded metal and heat affected zones were characterized by tensile testing, bending testing, Rockwell hardness testing and microstructural analyzed by optical microscopy, an...
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| Autores principales: | , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://dialnet.unirioja.es/servlet/oaiart?codigo=6413732 |
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| Sumario: | The effects of process variables on weld quality are
being studied for the Flash Butt Welding of SPFH 590 steel. The
resulting welded metal and heat affected zones were characterized
by tensile testing, bending testing, Rockwell hardness testing and
microstructural analyzed by optical microscopy, and scanning
electron microscopy. The results indicated a transformation of the
metal joint from ferrite laminar to acicular ferrite. During the
welding process, the long-shaped grains grew and became
rounded-shaped, and through the cooling process, some side plate
Widmanstatten ferrite structure is formed. The significance of
process factor levels on microstructure, weld zone strength, and
fracture characteristics were analyzed. The welding process
parameters, 5V (voltage), 2.3 mm (upset), and 2 s (flashing time),
displayed the best properties combination (strength and ductility)
of all the test performed. |
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