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| HOW
VENEER IS MANUFACTURED (continued) |
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Rotary
Cut: A bold, sometimes wild, variegated figure.
An undivided length of log is mounted in a manner that
permits it to be turned on its long axis. While spinning,
a razor-sharp knife, as long as or longer than the section
of log, is slowly advanced toward the center of rotation.
The veneer produced comes from the log as a continuous
sheet. Much like paper being unwound from a roll. Rotary-cut
veneer is primarily used in the manufacture of softwood
plywood, and for applications where matching is unimportant.
Hardwood veneer that may be rotary cut is usually limited
to birch, maple, oak and ash. |
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Quarter
Cut: Straight grain or ribbon-striped
appearance. The cant is mounted on the slicer in a position
that will cause the growth rings to strike the knife at
an approximate right angle. The edge of the annual rings
creates the lineal figure of the veneer. Oak species will
also include flakes. (see Rift Cut). Only wood species
with distinctive annual rings are quarter sliced, producing
a consistent appearance throughout the flitch. Some popular
quarter species cuts include mahogany, oak, anigre and
zebra wood. |
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Flat
Cut & Plain Sliced: Also know
as plain slicing and plain sawn. A variegated figure typified
by straight grain mixed with swirls and cathedrals. Flat-cut
veneer is produced by advancing a half log, mounted on
a large steel rack that moves up and down and towards
a stationary knife through a series or vertical, parallel
cuts. Although grains variations will change from tree
to tree, the designer can anticipate that the pattern
will be somewhat similar. Flat-sliced veneer is moderately
priced and commonly available in most wood species. |
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Rift
Cut: A straight grain effect similar to
true quarter cut veneer. Oak trees contain characteristic
growth features called medullary rayscells radiating
outward from the center of the tree, like the spokes of
a wheel. If oak is quarter sliced, flakes result from
cutting parallel to these rays (often seen in older furniture
made from oak). To minimize the occurrence of these flakes,
the cant is cut at an angle of 15 degrees off the quartered
position.  |
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©2008
Industrial Plywood, Inc. |
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