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Summary
Badger Metal Tech has a method for obtaining
the synergistic benefits of both
MetaLLife
(MPCMP coupon) and
ThermaLLife
(FNC coupon) by effectively combining them. How to do this had been a
dilemma.
Applying heat after
MetaLLife
relaxes compressive and tensile stresses. On the other hand,
if
MetaLLife
was applied after
ThermaLLife
there was a concern that
MetaLLife
would destroy or remove the thin protective compound layer. This layer provides the
barrier that prevents soldering in aluminum content molten metal for die casting dies.
Examples of both sequences are shown at the right.
Specially
prepared H-13
coupons of the first combination (MetaLLife
+
ThermaLLife) were
submitted for X-ray diffraction measurements. The curves showed a
significant beneficial value of
compression, and depth still remained even after extended temperature and
time were
applied.
Further studies, both in
the US and Japan, now confirm that
MetaLLife
helps lock in the grain boundary compressive stress benefit and allows a higher
concentration of Nitrogen and Carbon to be diffused into the surface of the
tool steel. The result is a compressive stress benefit that
increases fatigue strength, buffers cavitation effect, and a compound layer
that prevents soldering
All of
the benefits of
MetaLLife
and
ThermaLLife
are combined in a synergistic manner to provide total
TooLLife
benefits.
Related Topics
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