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
Leather Split

Thick animal hides are normally split or sliced to a specific thickness for given end uses. The piece that contains the flesh side of the hide is referred to as the ?split? and is used in the manufacture of suede jackets, gloves, etc.

Leveler

A series of opposed, hardened steel rolls on a coil grinding machine that mechanically reduces coil or sheet distortions prior to grinding and/or polishing.

Line Contact

Point at which the workpiece meets the coated abrasive belt on a contact wheel type operation, as opposed to area contact of the workpiece on a platen type application.

Linear Flex (L-Flex)

A controlled breaking of the adhesive bond of a coated abrasive product in the direction of the length (longitude).

Loading

Filling of the spaces between abrasive grains on a coated abrasive product with grinding swarf, resulting in a decrease in stock removal and rate of cut. Loading can be reduced in many operations by using an open coat product construction or a lubricant.

Load Meter

An electrical meter that shows the main motor load during operation. A common option found on mechanized or automated abrasive belt operations. Some are calibrated in percent of rated motor horsepower. Others show amperes (amps) being used.

Long Scratch

Scratch pattern (long scratches) exhibited on a workpiece after stroke sanding or flat platen type sanding vs. a short ?scratch? from a contact wheel or roll operation.

Lubricant

A liquid or solid (grease stick) substance used on coated abrasives to reduce heat generated in the work and improve abrasive performance.

Lapping

A finishing process typically employing loose abrasive grain, now often including similar types of operations with coated abrasives (i e. crankshaft and bearing lapping for engines).

Lap Joint

Coated abrasive belt joints formed by overlapping the two ends of the abrasive material about 3/8? and bonding. The abrasive grain must always be removed (skived) from the bottom lap prior to joining.

Land

The surface between grooves on a serrated contact wheel or roll. The area of a serrated contact wheel that supports the belt at the point of contact with the work.

Land/Groove Ratio

The ratio of the widths of the land to the grooves on a serrated contact wheel or roll, e.g., land/groove ratio of 2 to 1 = 1? land width, 1/2? groove width.

VSM Abrasives Co.
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