Glossary Terms

Glossary-terms October 30, 2018

Number derived from the net increase in the depth of impression as the load on the indenter is increased from a fixed minor load to a major…

Glossary-terms October 30, 2018

Indentation hardness test uses a calibrated machine that utilizes the depth of indentation, under constant load, as a measure of hardness. …

Glossary-terms October 30, 2018

Indentation hardness test uses a calibrated machine that utilizes the depth of indentation, under constant load, as a measure of hardness. …

Glossary-terms October 30, 2018

roll

Rotation about an axis, as with a rotatable wrist.

Glossary-terms October 30, 2018

rotary attachment

Bolts to a milling machine to permit machining such shapes as circular T-slots and cams.

Glossary-terms October 30, 2018

rotary transfer machine

Type of CNC machine tool for high-volume, extended-length production runs of a family of parts. A workpiece is transferred from station to …

Glossary-terms October 30, 2018

roughing cutter

Tool for high-volume metal removal; normally followed by finishing passes. See finishing tool.

Glossary-terms October 30, 2018

roughness

Irregularities on the surface of a workpiece caused by production process. Includes traverse feed marks within the limits of the instrument…

Glossary-terms October 30, 2018

Accelerated corrosion test in which specimens are exposed to a fine mist of a solution usually containing sodium chloride but sometimes mod…

Glossary-terms October 30, 2018

sawing machine (saw)

Machine designed to use a serrated-tooth blade to cut metal or other material. Comes in a wide variety of styles but takes one of four basi…

Glossary-terms October 30, 2018

sawing

Machining operation in which a powered machine, usually equipped with a blade having milled or ground teeth, is used to part material (cuto…

Glossary-terms October 30, 2018

scalloping

Wavy surface condition caused by deflection, unbalanced tool, loose workpiece or tooling or worn machine.