Publicado

2011-07-01

DEVELOPMENT OF A WELDING PROCEDURE FOR MIL A 46100 ARMOR STEEL JOINTS USING GAS METAL ARC WELDING

Palabras clave:

Gas metal arc welding (GMAW), welding procedure specification (WPS), MIL A 46100 armor steel (es)

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Autores/as

  • DAVID MAZUERA ROBLEDO Grupo de soldadura, Universidad Nacional de Colombia – Sede Medellín
  • JOHN ALBERTO SUÁREZ GÓMEZ Grupo de soldadura, Universidad Nacional de Colombia – Sede Medellín
  • JORGE ENRIQUE GIRALDO BARRADA Profesor Asistente, Grupo de Soldadura, Universidad Nacional de Colombia – Sede Medellín
A welding procedure (WPS) for MIL A46100 steel armor joints using the gas metal arc welding process (GMAW) was developed and qualified according to mechanical and non-destructive (NDT) requirements of military codes. Obtained results were compared to shielded metal arc welding (SMAW) procedures used to weld this type of steel. It was found that designed WPS is a suitable option to weld MIL A46100 armors according to the results obtained. In addition, a narrower heat affected zone (HAZ) was obtained with designed WPS which should lead to a better in-service armor performance according to results of previous studies. Finally, an increase in Charpy v-notch (CVN) test impact energy compared to the SMAW procedure was found.

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