Resources

Glossary


A B C D E F G H I J L M N O P Q R S T U V W Y Z
Machine Room

The area of furniture plant where the rough cut lumber is dimensioned, glued into panels, and machined. The dimensioning portion of this operation is frequently carried out on wide belt abrasive planers.

Magnetic Platen

A platen that is magnetized to hold (secure) ferrous metal parts during the grinding operation.

Maker (Machine)

A machine that manufactures coated abrasive products by combining the backing, adhesive, and abrasive grain.

Making

The process of producing coated abrasive products.

Mold Block

A preshaped back-up block that is positioned in back of an abrasive belt that will con-form to the molding being processed or finished. Blocks can either be held by hand and guided over the straight line molding, or held in a stationary fixture allowing the operator or sander to push the molded stock against it. In all cases, the coated abrasive belt moves between the sanding block and the work.

Mold Sanding

Sanding and finishing of wood moldings using a mold block and very flexible coated abrasive belts.

Mohs Scale

An empirical scale consisting of 10 minerals, with reference to which the hardness of all other minerals is measured. It includes softest mineral (designated to 1) to hardest (10); talc, gypsum, calcite, fluorite, opatite, orthoclase, quartz, topaz, corundum, and diamond.

Modular

A grinding machine constructed in similar sections (modules), that can be added to or taken away, depending on the particular application, i e., adding or subtracting head units from a centerless grinder.

Make Coat

The first adhesive coat which adheres the abrasive grain to the backing of a coated abrasive product, thereby ensuring proper anchoring and orientation of the abrasive grain.

Malleable

Capable of undergoing plastic deformation without rupture. A property characteristic of metals that makes them easily ?workable?.

Mandrel

A metal rod or support used to mount cartridge rolls, cross and square pads, disc sets, or loose pieces of coated abrasives to be held in the chuck of a grinder for grinding and polishing.

Matt Finish (Matte)

Dull, as applied to the appearance of a surface.

Maximum Operating Speed

Highest permissible operating speed (RPM) marked on a coated abrasive disc back-up pad, flap wheel, or contact wheel.

M/S

Meters per second is the European equivalent of S.F.P.M. To convert M/S to S.F.P.M., multiply M/S by 196.8. To convert S.F.P.M. to M/S, divide S.F.P.M. by 196.8.

Micro Finish

A measure of surface finish. Usually expressed in micro-inches or micro-millimeters.

Micron Size

A unit of measure used to compare abrasive grain size. 1 micron is equal to 0.000039″. Therefore 320 grit is equal to approximately 36 microns.

Mirror Finish

A shiny, highly reflective finish on a workpiece. Distortion free, without flaw.

VSM Abrasives Co.
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