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
Random Finish

A non-directional scratch pattern generated on a workpiece during a coated abrasive grinding operation.

Regulating Belt

Used in centerless grinding, regulating belts are either a coated abrasive product or made from leather or a rubber belting composition. They are run over a steel platen, normally with a carbide insert to prevent wear, and function the same as a regulating wheel.

Regulating Wheel

Used in centerless grinding, regulating wheels function both as a frictional driving and braking element, rotating the work at a constant and uniform surface speed. The regulating wheel or belt is usually tilted at an angle to the vertical. This angle and the SFPM of the wheel or belt determines the thru-feed rate of the work.

Resin

A synthetic adhesive used as a bonding agent or coat for coated abrasive products.

Resin Bond

See Resin.

RMS

Root Mean Square. A method of averaging which emphasizes the large values in the data averaged. Often used for scratch depth as a measure of surface finish.

Rockwell Hardness

A measure of hardness of a material as determined by the Rockwell hardness test.

Roll Grinding Machine

A machine for grinding cylindrical rolls which are used for rolling metal, paper, or rubber.

Rolls

A form of coated abrasives (usually in 50 yd. lengths) in widths from 1/2? to 52?. Sold in roll form to be converted by the customer.

Rough Grinding

The first grinding operation for reducing stock rapidly without regard for the quality of the finish.

Rough Lumber Planing

Refers to the first sanding operation on lumber after the sawing operation. A replacement for knife planing.

RPM

Revolutions per minute.

Rubbing

The final phase of finishing in which the part surface is ?rubbed? by machine or hand using fine grit coated abrasives followed by a rubbing compound to produce the desired finish.

VSM Abrasives Co.
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