دراسة تاثير المادة المالئة في لحام الومضة لاسلاك النحاس على الصلادة والبنية المجهرية
The aim of this work is to recognize the bonding by flash welding of high conductor wire
(2mm) which produced in UR Company of Nasseryah. The butt welding joint of this wire was
completed with mixed dendritic structure including some defects (cracks and porosity). The
hardness of the region is high the base structure due to existing copper oxide phase. When
Filler metal alloy (silver-copper alloy) type BAg2 is used during welding the welding zone
will contain three types of bonding phases, one of these phases will decrease the hardness of
the structure in comparing with the base. The all structure was defect free.