BANDSAW OPERATIONS - OD1646 - LESSON 1/TASK 1
(2) Polishing Bands. When the polishing attachment has been installed
on the bandsaw machine and the bandsaw blade has been replaced by the
polishing band, polishing operations can be performed on the bandsaw
machine. The polishing band is usually one inch wide, and has a heavy
FIGURE 33.
POLISHING ATTACHMENT.
fabric backing.
Polishing bands are manufactured to withstand high
finishing and polishing temperatures. Abrasive bands are mounted over the
wheels in the same manner as saw bands; however, a rigid backup support
which has a graphite impregnated facing is used.
This polishing guide
support (figure 34 on the following page) is mounted to the post in place of
the saw guides.
(a) Types of Polishing Bands. Polishing bands for bandsaw machines are
usually supplied in three grain sizes of aluminum oxide or silicone carbide
abrasive.
Number 50 grain (coarse-medium) is used for light grinding
operations, soft materials, and heavy stock removal with the bandsaw
machine.
Number 80 grain (medium-fine) is used for coarse polishing
operations and general surface finishing.
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