Download - 1 Welding Introduction
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Welding is a materials joining process whichproduces coalescence of materials by heating them
to suitable temperatures with or without the
application of pressure.
Many welding processes are accomplished by heat
alone, with no pressure applied;
others by a combination of heat and pressure;
and still others by pressure alone, with no external
heat supplied
In some welding processes a filler material is added
to facilitate coalescence.
WELDING
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Welding is used for making permanent joints.
It is used in the manufacture of
automobile bodies,aircraft frames,
railway wagons,
machine frames,
structural works,
tanks,
furniture,
boilers,
general repair work
and ship building.
Uses of Welding
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