| History:
History of electric butt welding is not available. But
butt joining techniques is present from IRON AGE.
Definition: Butt welding is resistance welding process
wherein coalescence is produced simultaneously over
the entire area of butting surfaces by heat obtained
from the resistance of electric current through the
area of contact of those surfaces by the heat obtained
from the resistance of electric current through the
area of contact of those surfaces. Pressure is applied
before
Principle: Position metal rods in line and heat them
to their plastic state and apply a force to interact
atoms then give time to cool it down, and then release
force.
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