FortiPhy™ High-Performance Metal Surface Tool
Coatings from Phygen Work Well in Cold Drawing Applications
 Cold
drawing processes produce high-quality precision parts at
high production rates. Unlike machining in which metal is
removed, cold drawing uses tough dies and large presses to
apply high pressure to reform metal. The material, typically
sheetmetal, flat plate, or bar stock, undergoes plastic deformation
as it is formed into finished parts. Because the grain structure
of the metal tends to follow the part contours, cold drawing
produces stronger parts than those typically produced by machining.
In addition, drawing processes use less coolant and generate
less scrap metal.
Cold drawing dies require precise clearances to ensure that
metal flows properly during forming operations. Friction must
be overcome as quickly as possible and remain low during the
entire operation. High pressure forming, such as very deep
draws, can generate intense heat and cause welding, galling,
or seizure. Abrasive wear can be a big problem with some materials.
Uncoated tools can fail quickly. Ordinary coatings can help,
but the combination of high pressure, heat, and abrasive material
can overcome the adhesive strength of the coatings and peel
them off in a matter of hours. High-temperature coatings can
cause large draw rings to warp or go out of tolerance.
Surface engineering is critical to extending the life of
precision dies. High-performance
FortiPhy™ coatings by Phygen can help manufacturers keep
critical tooling running longer. FortiPhy UltraEndurance™
coatings are applied using a patented process that ensures
an unprecedented level of process control, coating uniformity,
and adhesion. A key benefit
of FortiPhy metal surface coating's nanocrystalline microstructure
is the low coefficient of friction. Its nanocrystalline structure
is free of pores, columnar structures, and inclusions, any
of which could lead to cracks, corrosion, and uneven wear.
|
