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K Is for Key SeatMetalworking Glossary for the Letter KSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossaryKerf. The width of the cut made in a workpiece by a saw blade.Key. The term key can refer to different things related to machine tools, including the T-handle ...

S Is for SwarfMetalworking Glossary for the Letter SSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossarySaddle. On a lathe, a saddle is part of the carriage and is located at the top of a lathe. It supports cross-slide movements. On a mill, a saddle is the part of t...

Z Is for Zero Rake AngleMetalworking Glossary for the Letter ZSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossaryZ-axis. One of three axes in a three-dimensional Cartesian coordinate system, the Z-axis is perpendicular to both the X-axis and Y-axis.Z-axis Milling. ...

J Is for Jig GrinderMetalworking Glossary for the Letter JSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossaryJacobs Chuck. A common term for the modern drill chuck, it is so named because the original was invented in 1902 by Arthur Irving Jacobs. It was the first d...

Q Is for QuenchingMetalworking Glossary for the Letter QSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossaryQuenching. The process of rapidly cooling hot metal by contact with a lower temperature material like liquid or gas to harden it or otherwise alter its proper...

R Is for Rake AngleMetalworking Glossary for the Letter RSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossaryR-Axis. On a press brake, the vertical movement of the back gauge is considered the R-axis. Some CNC press brakes allow automatic control of the R-axis, and ...

N Is for NonferrousMetalworking Glossary for the Letter NSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossaryNegative Rake Angle. A tool has a negative rake angle when the face of the cutting tool slopes away from the cutting edge at outer side. A negative rake angl...

O Is for OxidationMetalworking Glossary for the Letter OSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossaryOffset. A defect in a forging caused when the dies did not align properly.Oil Country Lathe. An oil country lathe is a large, specialized lathe for machining ...

P Is for PitchMetalworking Glossary for the Letter PSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossaryPancake Forging. A quickly and easily created rough forged shape that is usually flat.Parallels. A pair of accurately ground hardened steel bars made to an exact ...

M Is for MachiningMetalworking Glossary for the Letter MSee the index to the Glossaries here:https://www.libertymachineworks.com/blog/150-metalworking-glossaryMachinability. The characteristic of a metal or other material showing the relative ease of machining it to produce a satisfactory surface finish.Machine Tool...