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Cutting fluid is a type of coolant and lubricant designed specifically for metalworking processes, such as machining and stamping. There are various kinds of cutting fluids, which include oils, oil-water emulsions, pastes, gels, aerosols (mists), and air or other gases. Cutting fluids are made from petroleum distillates, animal fats, plant oils ...
Burgsmüller replaced the grooved drill shaft used until then by a tube with a closed cross-section, which was more torsionally rigid, and for the first time conveyed the chips through the inside of the tube. Burgsmüller used a double-edged tool and an air-oil mixture, which is nowadays used in production with minimum quantity lubrication.
Automatic lubrication system installed on computer numerical control machine. Automatic lubrication systems (ALS), also known as centralized lubrication systems (CLS), are mechanical devices used in industrial machines and engines to apply specified quantities of a lubricant to distribution points while the machine is operating.
Stribeck curve. The Stribeck curve is a fundamental concept in the field of tribology. It shows that friction in fluid-lubricated contacts is a non-linear function of the contact load, the lubricant viscosity and the lubricant entrainment speed. The discovery and underlying research is usually attributed to Richard Stribeck [1][2][3] and Mayo D ...
Peristaltic pump in motion. A peristaltic pump, also commonly known as a roller pump, is a type of positive displacement pump used for pumping a variety of fluids. The fluid is contained in a flexible tube fitted inside a circular pump casing. Most peristaltic pumps work through rotary motion, though linear peristaltic pumps have also been made.
Amount of lubrication provided by drilling fluid depends on type & quantity of drill solids and weight materials + chemical composition of system. Poor lubrication causes high torque and drag, heat checking of the drill string, but these problems are also caused by key seating, poor hole cleaning and incorrect bottom hole assemblies design.