Welding Processes
Welding is the most
economical and efficient way to join metals permanently. Welding is used to join
all of the commercial metals and to join metals of different types and strengths.
A weld is produced
either by heating the materials to the welding temperature with or without the
application of pressure alone with or without the use of filler metal. There are
different kinds of welding processes who all use different sources of heat, for
instance arc welding
which uses an electric arc as a heat source. Another commonly used welding
process is spot welding
(resistance welding).
Welding is
considered to be the most complex of all manufacturing technologies. In order to
transform welding from a manual operation to an automated
production process, it is necessary to understand the scientific principles
involved.
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