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Fastening
& Joining Methods
Electroslag
Welding (ESW)
Electroslag welding (ESW) is a process
joining metals with heat generated by passage
of electric current through molten conductive
slag which melts the filler and base metals.
Due to practically unlimited deposition
rates ESW is considered the most productive
of any welding processes in joining very
thick components.
The (ESW) process was developed at the
Institute of Electric Welding named after
E.O. Paton (former USSR) in the late 40's.
In the U.S., ESW came into practice in the
late 60's. In the mid 70's, ESW became a
well established fabrication process for
joining thick wall components in bridge,
building, shipbuilding, pressure vessel,
machine building and other industries.
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