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their work.) The plasma arc ionizes
the consumable, and a small quantity
of molten electrode material is transferred onto the workpiece. The transfer of material, which integrates into
the surrounding material, occurs rapidly. Unlike in welding, no appreciable
heat is generated over an extended
period. There is little or no modification of the base material, and the filler
metal is not likely to separate or flake
o; of the tooling surface.
These material deposits from this
new model can be as little as 0.0001
in. to 0.010 in. and higher. The digital
controls can ensure application levels
within 0.0001 in. of the specified level.
The thin deposits achieved with
the company’s titanium carbide electrode ( 80 Rockwell C) are suitable for
metal forming applications. They help
to prevent slug pull in punching and
stamping operations and extend the
life of cutting edges and tooling, according to Rocklin.
Medium-level deposits using the
tungsten carbide electrode ( 70 HRC)
are best for applications such as restoring tolerances on bearings and
sha;s. The higher settings, combined
with the company’s Rockhard electrode ( 60 HRC), produce a rough surface that is suited for applications that
need a strong gripping surface. Rocklin added that the 950 works much
more quickly than previous models.
“There is far more power in this
unit. We have more capacitors, and
that allows the unit to perform much
more quickly,” he said. “We leveraged the technology that we developed in the past and accentuated it
to support faster and heavier deposit
With the new technology, a 5-sq.-in. coating takes less
than 1 minute to apply with the machine’s high-speed setting. If a fabricator or metal former has a much more “
delicate” operation, where the application area is more nuanced, Rocklin said the application process can be slowed.
Also, companies that require coatings for larger areas can
automate this process.
“There is no subsequent grinding or heat treating re-
quired once this coating has been applied,” Rocklin said.
“A key benefit is adding carbide in various finishes to meet
your needs, whether you want a smooth surface, which can
be done with the titanium carbide electrode, or a rough
surface with the Rockhard electrode. It all depends on the
The rough coating even could be considered for applica-
tions such as li; trucks and nonslip flooring. Anything to
keep workers up and running as they keep pace with life in
the modern-day manufacturing environment.
Editor-in-Chief Dan Davis can be reached at
Rocklin Manufacturing Co., 800-255-6046, www.rocklinmfg.com
“Some people are
constantly coating dies
and a variety of tooling
throughout the day.
Essentially, the real benefit
[of using the Rocklinizer
model 950 carbide-
is that it reduces that
metal-on-metal wear and
increases the useful life
of a variety of machinery
— Ross Rocklin,
Rocklin Manufacturing Co.