Tribology is the science
of friction, lubrication, and wear.There is
little understanding of tribology; consequently, it
requires a systematic approach and a broad knowledge of
Chemistry, Fluid Mechanics, Thermodynamics, Metallurgy,
and Solid Mechanics.
In metalforming, tribology
is the critical process control factor. Friction
transmits the forces of the press to the work piece to
achieve the desired strains. Lubrication is used
primarily to control friction and prevent adhesion. It
may also function to reduce friction and prevent
corrosion.
Adhesion is the most
prevalent and problematic form of wear. Build up of the
work piece material on the die causes uncontrolled
friction and may reduce clearances causing high local stresses
and part or die fracture.
