BANDSAW OPERATIONS - OD1646 - LESSON 1/TASK 1
teeth are loaded.
Loaded files cause bumpy filing and scratch the
workpiece.
Excessive filing pressures when the file segments are clogged
with chips will cause the file teeth to strip out. Use a file card or brush
to clean the band before returning any file band to the storage cabinet.
(9) Removing the File Band.
To remove the file band, release the
tension by lowering the upper wheel, and slip the band off the wheels. To
separate the band after it has been removed from the wheels, perform these
steps:
(a) Hold the band at the joint with both hands, with the yellow segment
in the left hand.
(b) Bend the joint to not more than a 12 inch radius, exposing the joint
slot.
(c) Using the forefinger of the left hand, depress the front end of the
yellow file band.
With the thumb and forefinger of the right hand, disengage the dowel.
(d) Slide the lock rivet to the open end of the slot and lift off.
(e) For storage after removal, the file band should not be coiled into
more than three loops.
f.
General Polishing Operations.
Polishing bands and a polishing
attachment are provided with the bandsaw machine so that light polishing
operations can be performed. The polishing bands are intended primarily for
removing saw marks on the cut edges of workpieces.
(1) Polishing Attachment.
A polishing attachment (figure 33 on the
following page) is provided with most bandsaw machines to allow the machine
to be used for polishing.
The attachment, similar to the band file
attachment, provides support for the polishing band, together with the
polishing band plate which is supported between the post and frame of the
bandsaw machine. The polishing band plate acts as a solid backing for the
polishing band to prevent stretching and distorting the polishing band when
the workpiece is held against it. A polishing band filler plate is used to
fill the table slot so the workpiece can be supported close to the polishing
band.
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