4. Brazing
• The process that joins
metals by adhesion with
low melting point filler
metal
• Parent metal is not
melted
• Copper is common filler
metal
5. Oxyfuel Gas Welding
• Process in which the heat generated by
burning gases cause the parent metal to melt
and fuse into one piece
• Sometimes a filler metal is used
• The most common oxyfuel process used is
oxyacetylene welding
6. Arc Welding
• Process in which
heat is produced by
an electric arc
between a welding
electrode and the
parent metal
7. MIG Welding
• Metal inert gas welding
• A gas shielded arc welding
process which creates a
clean weld
• The electrode is a filler wire
that is fed ito the weld
automatically
• Metals ¼” thick or thicker
8. TIG
• Tungsten inert gas
• Gas shielding arc welding
process which creates a clean
weld
• Uses a tungsten electrode to
maintain intense heat and a
metal filler rod can be added
• Metal ¼” or less
• Most aluminum is TIG welded
9. Resistance Welding
• An electric current is the
source of heat.
• Pressure is applied to
bring the parts together at
the point of weld
• Common type of
resistance welding is spot
welding
10. Induction Welding
• Heat is generated by the resistance of the
metal parts to flow of an induded electric
current
• Can be done with or with out pressure
11. Electronic Beam Welding
• A high intensity beam of
electrons focused in a small area
at the surface to generate heat for
welding
• This process provides greater
control over other processes
• Done in a vacuum to make a
cleaner weld
• Small amount of distortion
because heat is concentrated in a
small area
