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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
Flesh Buffing

Mechanical sanding of leather. [i e., leather that are finished by buffing the flesh side (opposite the grain side) to produce a nap]. The term flesh buffing refers to the napping process and is unrelated to the type of animal skin used.

FTS

Abbreviation for Full Top Skive (a type of belt lap joint configuration). All of the grain is removed from the top lap of the joint for smooth running.

Flex

A controlled breaking of the bond that holds the abrasive grain to the backing of a coated abrasive product.

Fluting

Grinding the grooves of a twist drill or tap.

Flutter Sanding

Sanding irregular, intricate shapes or carvings which may be found on furniture frames, legs, chair backs, etc. Normally done with eight winged DeLappe Discs folded into a pinwheel configuration.

Foaming

A frothing of bubbles on the surface of a liquid. Usually refers to ?loam? in grinding aids, etc., during the grinding process. Reduces performance of the abrasive.

Folding

Normally refers to creasing of a coated abrasive belt during use (see Creasing).

Forging

Using compressive force to shape metal by plastic deformation. Dies may be used. Also refers to a piece of work made by forging.

Forty-five (45) Flex

A controlled breaking of the adhesive bond of a coated abrasive product at 45 degree right and left hand angles to the length.

Freehand Grinding

Grinding by holding the work against the coated abrasive by hand; usually called Offhand Grinding.

Friable

Referring to the property of a substance capable of being easily crumbled, or pulverized into powder

Finning Out

Generating super fine finishes on a workpiece during the last stages of a coated abrasive polishing operation Either the last step in polishing, or as preparation for subsequent buffing.

Finish

The surface quality or appearance, such as that produced by sanding or polishing.

Finish Grinding

The final abrasive operation which produces the desired finish on the workpiece.

Finishing Paper

Products manufactured on A-weight (40-pound) backings, normally in fine grits. Usually used to hand sand for final finishes on wood, metal, etc.

Finishing Room

Refers to an area in a furniture plant where the primary sanding operations for finishing furniture are performed including wash cut sanding and sealer sanding.

Fish Eye

A spot in a finished coated surface, where the coating is sufficiently thinner than in surrounding areas to cause a visible blemish. This defect is usually caused by the presence on the surface, before coating, of a minute trace of some chemical which prevents easy wetting of the surface by the coating materials. Silicones are one of the most common classes of chemicals of this type, and as a consequence, they are rigorously excluded from high-quality coated abrasives.

Fixture

A device used to hold and position the workpiece during grinding and polishing operations.

Flanges

Circular metal plates used to support and drive some contact wheels, BEAR-TEX Wheels or Flap Wheels.

Flap Wheel

Flat pieces of coated abrasive sheets (flaps) arranged and fastened together on a core like spokes of a wheel. The rotational slapping action of the flaps does the abrading and polishing.

Fin

A thin projection on a casting.

Fibre Combination

A strong coated abrasive backing made by adhering cloth to 10 mil thick fibre.

F.E.P.A.

?Federation of European Producers of Abrasives? – Normally used to describe a European grading system for abrasive grain to differentiate it from the USA A.N.S.I. system. Products graded to the F.E.PA. system may have the letter ?P? prior to the grit designation, e.g., P240, P36.

Feed

Movement direction of the work in relation to the abrasive. May be thru-feed (longitudinal), down feed or in feed (depth of cut) or cross feed (lateral).

Feed Lines

Undesirable pattern on the work produced by grinding. Most commonly found as a spiral pattern on centerless, cylindrical and roll grinding. Usually caused by incorrect grinding procedure or alignment.

Felt Padding

A term referring to the surface material on drum sanders, vibrating sanders, shoe on stroke sanders, etc.

Ferrous

Any metal alloy containing iron, usually in major amount.

Fibre (Backing)

A very hard, strong, coated abrasive backing material consisting of multiple plies of impregnated paper. Used primarily for disc products.

Flashing

A fin of excess metal along the mold joint line of a casting, occurring between mating die faces of a forging or expelled from a joint in resistance welding.

VSM Abrasives Co.
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