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R-1 Radius
Die Set |
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Spring
back will occur and must be
compensated for when a radius
exceeds four times the thickness
of material being formed. As the
radius increases more over bend
must be made to get the proper
formed radius. Radius die sets
are typical fitted for one gauge
and type of material. |
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R-2
Radius Die Set |
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The R-2
contains a spring-pad in the die
that keeps kinking to a minimum
and offers better results when
lighter gauge materials are
used.
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R-3 Radius Die Set |
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The R-3 die set is used when
forming a radius close to a
flange. The preformed flange
will have to be formed to less
than 90°
.
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R-4 Radius Die Set |
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The R-4
die set forms an outside flange
and radius in one operation. |
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R-5 Radius Die Set |
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The R-5
die set is used for forming a
radius starting lip when a
rolling process is required.
This operation leaves a flat at
the edge of the sheet. The R-5
die set can also be used to bump
different radii in a range of
material. By adjusting to
distance between bends lager
radii can be bump formed. |
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R-6 Radius Die Set |
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The R-6
is used when forming a radius
with an inturned flange to the
end of the radius. The lower die
has a wiper plate at each end to
hold the flange square and limit
the wrinkling of the flange.
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