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Tip
#40
Glossary of Terms
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L-M
Laminate-The
bonding together of two or more pieces of material for decorative
or strengthening purposes. An example of decorative lamination
is a countertop made of plastic material glued to the surface
of particleboard or flakeboard. An excellent example of lamination
for strength is provided by ordinary plywood. Lamination can
also be used for gluing up bent wood projects without the
use of steam, chemicals or water.
 Lap
Joint-A common term that can be applied to several different
types of joints in which one piece of wood overlaps and fits
onto or into another. As a rule, the surfaces of lap joints
are usually flush when assembled.
 Loading
Up-A term most commonly used to indi-cate that abrasive
materials such as sandpaper, grinding wheels and sharpening
stones are becoming clogged-up with wood or metal particles.
Can also be applied to the loading of the twist grooves in
drill bits. "Loaded" abrasives or other tools should be cleaned
or replaced to restore their cutting efficiency.
Mill
Marks-Small parallel ripples or ridges produced on the
surfaces or edges of wood by planer knives, joiner knives
or saw blades. In the case of planer or joiner knives, these
imperfections can be caused by nicks in the blades, improper
knife settings, feeding the stock too rapidly or taking too
deep of a cut in a single pass. In the case of saw blades,
virtually all blades (with the possible exception of certain
hollow-ground blades) produce mill marks.
 Miter-A
joint where the meeting angle of two pieces of stock is divided.
For example, the 90° corner of a picture frame is usually
created by cutting two mating 450 miters. This same 900 corner
angle could also be divided and produced with a 60° cut and
a 30° cut.
Molding-The
process of creating decorative surfaces on workpieces using
a molder accessory.
 Mortise-A
hollowed-out hole or recess that is usually rectangular in
shape and formed to accept a matching tenon for joinery purposes.
Mortises can be created with a mortising bit and chisel, a
router bit, a series of overlapping drilled holes or an ordinary
hand chisel. Mortising is the process of cutting such a hole
or recess.
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