BANDSAW OPERATIONS - OD1646 - LESSON 1/TASK 1
referred to as "drag," will not affect a straight-line cut because the sides
of the blade remain parallel to the cut. However, when curves are cut on
the bandsaw machine, the drag will cause a "belly" in the cut section. To
reduce the belly to a minimum, the drag must be reduced to a minimum, and
this can only be done by reducing the pressure applied in feeding the
workpiece into the blade.
FIGURE 18.
CURVE LIMITATIONS.
(c) Curve Sawing at an Angle. When sawing at an angle with the table
tilted, a curve or radius will be shaped like a cone section, with a larger
radius on one workpiece surface, and a smaller radius on the other workpiece
surface. It is very important when cutting at angles that the smaller of
the two radii be used to determine the bandsaw blade size. Figure 19 (on
the following page) shows a chart of recommended bandsaw widths for minimum
radii to be cut. The recommendations on
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