Metals are welded in their solid states in
this process. Using frictional heat generated viarelative rotation
with axial pressure applied at the same time, the surfaces of
the work pieces are heated up to a plasticity state and firmly
jointed together.
CHARACTERISTIC & ADVANTAGE
No external heat or additional welding rod is needed.
Heat is evenly generated and distributed between the surfaces
of work pieces.
The strength of the welding point is greater than the
original material(s). The welding is conducted with high
accuracy without altering the properties of the original
material(s).
No electric arc, spark, smog, or toxicant is produced
because no fuel or filling material is necessary at the
time of processing, which leads to a better working environment.
Compared to other types of welding, the surface is cleaner
because of the shifting and replacement of the surface layer.
Friction welding can be conducted with extremely high
efficiency, which makes it especially suitable for automation
for mass production.
Friction welding has become one of the most reliable and
economical methods of jointing metals. It has been extensively
applied in order to reduce the cost of production and improve
the quality of welding.
Friction welding can be applied to most engineering materials.
Different metals can also be effectively jointed using this
method. The relative sliding displacement after welding
is minute and can fulfill any testing requirement.
In most cases, the strength of the welding point is equal
to or greater than that of the weaker of the two metals
jointed.