Related Glossary Terms
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
Space provided behind the cutting edges to prevent rubbing. Sometimes called primary relief. Secondary relief provides additional space behind primary relief. Relief on end teeth is axial relief; relief on side teeth is peripheral relief.
Low Frequency Vibration (LFV) is Citizen’s widely applicable cutting technology designed to avoid the problem of spiraling chips, entanglement of chips and built-up edges. In LFV cutting, “air cutting” time prevents the machining temperature from rising, which gives relief from various problems caused by chips and virtually eliminates the need for high pressure coolant. LFV is ideal for cutting difficult to cut materials in a broad range of shapes (including hard metals and soft plastics).
This technology breaks up chips into very small pieces so they don't become entangled with the material or tool. Benefits include prolonged tool life, reduction of down time, improved surface finish, exceptional part accuracy, and increased throughput.
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