Boring Bar – The Usage And Types

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Boring Bar The Usage And Types
Generally cylindrical in shape, housing a
single-point cutting tool at one end, a boring
bar is used to increase the internal diameter of
an already drilled hole, to match the desired
specification. But, there are a variety of
different types of boring bars in Bangalore
available to suit different applications,
depending upon their geometry, cutting heads,
materials involved, and other factors that
affect the boring process. It is very important
to be able to choose the right type of boring
bar for your particular application, one that
provides enough rigidity to handle the stress
developed during the cutting process. Using a
boring bar A boring bar is used to increase the
diameter of a pre-drilled hole, but setting it
up right is what determines the machining
quality. An improper setup may cause vibrations
during the machining process and result in a poor
surface finish, with chatter marks along the
bored hole. The clamping and overhanging lengths
of the bar should thus be checked. Once
everything is in place, the tool post is moved,
so that the cutting tip of the boring bat is
brought in contact with the surface to be
machined, and the reading on the handwheels is
set to zero. This eliminates any reading errors
in calculating the depth of the cut, thus
ensuring accurate dimensions of the final
hole. Types of boring bars Boring bars can be
classified based on their material, structure,
and construction. The type of boring bar
determines the strength of the bar to
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handle strong cutting forces with minimal
vibrations. The most popular boring bars used
include steel boring bars, carbide boring bars,
and damping bars. Steel boring bars Steel bars
are the most popular types of bars, which are
preferred because of their good machining
capabilities available at lower costs. However,
these bars are less rigid, and are prone to
vibrations, which in turn affect the quality of
the cut. Hence, these bars are recommended for
projects where low cost is valued over high
accuracy. These bars are generally suitable for
operations where a diameter to boring length of
14 is possible. Carbide boring bars Carbide bars
are the most rigid bars, making it possible to
use these bars with a smaller diameter, which
provides greater clearance for chip evacuation.
These bars are preferred in industrial
applications where hard materials are to be
machined, and where high accuracy is required,
irrespective of the costs involved. These bars
can make possible to have a maximum diameter to
length ratio of 18, but a diameter of over 1
inch isnt practical because of the high
cost. Damping boring bars Damping bars are used
when cutting speeds are compromised, or when
surface finished show chatter in a long-reach
boring operation. Having integrated damping
systems, these bars can work as both a counter
damper and friction damper, so that the chatter
is essentially absorbed. If you arent sure of
which boring bar youll need or you should choose
for your particular application, you can always
get in touch with experts like FineTech
Toolings. You can let the experts know about your
industry type and requirements, and theyll
clearly define the best boring bars in Bangalore
for you.
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