Such cryogenic treated tools or parts do
not easily develop micro cracks, which is the primary cause of edge failure.
Even when the micro cracks finally develop, the homogenous molecular
structure, means that they are minor in nature and the chipping can
physically be measured under a microscope to be minimum and therefore (a)
the blades wear out much less (b) the stock that has to be removed at the
time of grinding is also much less & which means more regrinds on the
tools.
Another advantage of cryogenic treatment of the tools specifically in
comparison to surface coated tools is that this treatment works throughout
the life of the tools and does not need repeated re-coating at every
regrind, since the complete mass is treated. Also, the treatment there is no
danger of chipping or breaking. In fact the finer and well-distributed
microstructure makes the tool much more ductile and yet tougher.
Some of the advantages
of cryogenically treated tool:
¤
Cryogenic treatment dramatically reduce consumption of tooling.
Treated tools typically yield two to five times the production compared to
non-treated tools before re-grinding is required.
¤
Permanently enhances volumetric efficiency of metals.
Treated components may be ground after treatment and the benefits of
treatment are retained thoughout the tool life.
¤
Reduce the frequency and cost of tool regrinding. Worn
treated tools require less material removal to restore a uniform cutting
edge. And so, treated tools may be reground more times before falling below
the minimum acceptable dimensions.
¤
Substantially reduce machine downtime caused by tool
replacement
¤
Reduce the scrap rate for machined forgings and castings by
cryogenic treatment prior to final machining for better stability and
surface finish.
¤
Enhances the wear resistance of steel and cemented carbide,
chromium or tin coated tools wear parts as well as copper resistance welding
electrodes.
¤
Dimensionally stabilizes metal optics and precision ground parts
prior to final polishing/grinding to produce a superior surface finish.
¤
Stress relieves forgings and castings to ensure dimensional
stability during final machining.
¤
Stress relieves metals for tear free drawing.
¤
One time permanent treatment which lasts the entire life of
the tool (refinishing or regrinding does not affect the permanent
improvements)
¤
Creates denser molecular structure resulting in larger
contact surface area which reduces friction, heat and wear.
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Atlas
Cryo
