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Nylon abrasive brushing technology includes abrasive disc
brushes, abrasive hex-drive tools, composite hub wheel brushes, and accessories
such as tool holders and adapters. These high-quality, professional-grade products
enable manufacturers to deburr, radius, and surface finish the outer diameter (OD)
of metal parts. For removing sharp edges and creating a desired radius,
manufacturing leaders in a variety of industries prefer NamPower wheel brushes.
As
this YouTube video shows, NamPower nylon abrasive composite hub wheels
feature indestructible cores, a balanced construction, a choice of face widths
and diameters, and a uniform fill pattern. An alternative to wire wheels and
non-woven abrasive brushing tools, NamPower wheel brushes are used in the
production of turbine blades, steel gears, machine parts, extrusion cut-offs,
and shaft finishing. These wheel-shaped abrasive nylon brushes can also produce
an edge radius on cutting tool inserts.
Understanding Abrasive Types
Recently, BRM announced the addition of diamond-impregnated
composite hub wheel brushes to its NamPower product line. The introduction of
these long-lasting, cost-effective diamond wheels extends the capabilities of NamPower technology,
and means that industrial buyers need to consider abrasive type during wheel
brush selection. Other important specifications to consider include grit size,
brush diameter, and face width.
Available with silicon carbide or diamond abrasive, NamPower
wheel brushes solve surface finishing challenges. Choose silicon carbide
for deburring and edge radiusing most metals. Choose diamond for harder
materials such as ceramic, glass, carbide, and hardened tool steels. BRM's
diamond abrasive wheel brushes are also ideal for producing edge radii on
diamond and cubic boron nitride (CBN) surfaces. Their composite hub
construction offers a dense, uniform fill pattern for more cutting points.
Diamond Wheel Brushes
NamPower
diamond-filled composite hub wheel brushes are also great for polishing the
flute relief on carbide and high speed drills, end mills, and reamers. These BRM
brushing tools can produce an edge radius on carbide inserts, too. With end
mills and reamers, a polished flute relief greatly enhances chip removal and
promotes better finishes and longer tool life.
With carbide inserts, an edge radius prevents fracturing and premature
insert wear.
BRM's black diamond-filled composite wheel brushes are
available in three diameters: 100-mm, 150-mm, and 200-mm. The 100-mm diameter
brush is manufactured in a 5-mm face width to allow finishing of smaller sizes.
The 150-mm and-200 mm brushing tools have either a 10-mm or 15-mm face
thickness to accommodate a variety of flute relief requirements. All NamPower
diamond wheels come standard in 600-grit, which offers the perfect
combination of cutting power and ultra-smooth final finish. Other grit sizes
are available by special order.
Silicon Carbide Wheel Brushes
NamPower wheel brushes that use silicon carbide (SC)
abrasive are available in four different grit sizes: 80, 120, 180, and 320.
Grit selection is highly dependent on the starting surface finish and the
amount of material refinement that's required. During product selection, choose
the coarsest grit possible that will still yield the required surface finish.
The NamPower
Resource Guide lists staring Ra values, a measure of roughness, for each
available SC grit size.
Coarse grits are recommended for use on heavier burrs, or in
applications where a fine surface finish is not required. Fine grit brush tools
that are used on a rough starting finish will have less effect on surface
condition improvement than the use of a coarse-grit brush followed by a
finer-grit tool. In addition to cutting and finishing, grit size also affects radial
brush flexibility. Industrial buyers should note, too, that NamPower nylon
abrasive wheels with coarser grits have larger-diameter filaments.
Author's Note: This CR4 blog entry originally appeared in
the BRM
Flex-Hone Blog.
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