Glossary Terms

Glossary-terms October 30, 2018

Number related to the height of rebound of a diamond-tipped hammer dropped on the material to be tested. Hardness measured on the Model C S…

Glossary-terms October 30, 2018

Dynamic hardness test using a calibrated instrument that drops a diamond-tipped hammer from a fixed height onto the surface of the material…

Glossary-terms October 30, 2018

Water-based chemical solution that contains some oil. See synthetic cutting fluid.

Glossary-terms October 30, 2018

Heat-treatment, whether accidental, intentional or incidental (as during welding), that causes precipitation of constituents at grain bound…

Glossary-terms October 30, 2018

servocontrol

Refers to control of motion. Applied to the industrial robot, it describes automatic feedback, or “closed-loop,” operation in which sensing…

Glossary-terms October 30, 2018

servomechanism

Control mechanism in a machine tool to feed the cutting tool into the part and slow or speed up the drive motors as required.

Glossary-terms October 30, 2018

shank

Main body of a tool; the portion of a drill or similar end-held tool that fits into a collet, chuck or similar mounting device.

Glossary-terms October 30, 2018

shaper tool

Single-point tool that traverses the workpiece in a reciprocating fashion to machine a desired shape.

Glossary-terms October 30, 2018

Vertical or horizontal machine that accommodates single-point, reciprocating cutting tools to shape or slot a workpiece. Normally used for …

Glossary-terms October 30, 2018

shaping

Using a shaper primarily to produce flat surfaces in horizontal, vertical or angular planes. It can also include the machining of curved su…

Glossary-terms October 30, 2018

shear lip

Narrow, slanting ridge along the edge of a fracture surface. Term sometimes also denotes a narrow, often crescent-shaped, fibrous region at…

Glossary-terms October 30, 2018

shear plane

Plane along which the chip parts from the workpiece. In orthogonal cutting, most of the energy is used to create the shear plane.