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Diamond grit
impregnated dressers
have been developed
from multi-point
dressers. In
contrast to the
latter they are
manufactured from
diamond grit rather
than a larger number
of small natural
diamonds. The
advantages of the
diamond impregnated
dresser lie in its
exceptional
sharpness, which
results from sharp
edges and points of
the diamond grit.
Diamond grit
impregnated dressers
are ideally suited
to the following
applications,
dressing resin,
vitreous and rubber
bond, fine grit and
even "grit free"
grinding wheels, as
well as boron
carbide grinding
wheels, dressing
single profile
threaded and
V-profile grinding
wheels, for general
dressing operations
on centreless,
cylindrical and
surface grinding
machines.
Diamond grit
impregnated dressers
are more economical
because of their low
initial cost and
their resistance to
shock and impact
which prevents
shattering.
Dressing times are
reduced as higher
feed rates can be
used. There is an
unlimited number of
sharp pull-out-free
cutting edges
contained in the
crushed diamond
grit.
..
Diamond grit
impregnated dressers
demand greater care
in selecting the
correct dresser for
a given application.
The bond and diamond
grit size used are
both variable
according to the
type of grinding
wheels to be
dressed. The size of
the diamond grit
particles should be
matched to the grit
size of the grinding
wheel.
Instructions for
Use:
Normal dressing
speeds are used. A
plentiful supply of
coolant should be
provided both before
and during dressing
to prolong dresser
life. The diamond
grit impregnated
cutting face of the
dresser should be
set at an angle of
90° to the grinding
wheel to be dressed,
so that all the
cutting edges of the
diamonds grit are
able to make contact
with the wheel face.
The feed rates used
may be double of
those used with
single-point diamond
dressers.
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The Depth Of cut Should Be as Follows
Finishing
- approx
0.01 mm
Rough
grinding -
approx 0.02
mm
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