helix grinding

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• Threading (manufacturing) — Threading is the process of creating a screw thread. More screw threads are produced each year than any other machine element.[1] There are many methods of generating threads, including subtractive methods (many kinds of thread cutting and… …   Wikipedia

• Abalone — For board game, see Abalone (board game). Abelone redirects here. For the wine grape that is also known as Abelone, see Chasselas. Abalone Living abalone in tank showing epipodium and tentacles, anterior end to the right …   Wikipedia

• Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… …   Wikipedia

• Screw thread — Internal and external threads illustrated using a common nut and bolt. The screw and nut pair can be used to convert torque into linear force. As the screw (or bolt) is rotated, the screw moves along its axis through the fixed nut, or the non… …   Wikipedia

• Muscle — is the tissue of the body which primarily functions as a source of power. There are three types of muscle in the body. Muscle which is responsible for moving extremities and external areas of the body is called "skeletal muscle." Heart… …   Medical dictionary

• Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …   Wikipedia

• Chronologie du metal — Cette chronologie détaille la formation et l évolution des différents groupes musicaux classifiés metal, soit l ensemble des genres musicaux faisant partie ou découlant du hard rock et/ou du heavy metal. Elle inclut également des groupes de rock… …   Wikipédia en Français

• Endmill — An endmill is a type of milling cutter, a cutting tool used in industrial milling applications. It is distinguished from the drill bit, in its application, geometry, and manufacture. Whereas a drill bit can only cut in the axial direction, a… …   Wikipedia

• Mycobacterium immunogenum — Scientific classification Kingdom: Bacteria Phylum: Actinobacteria Order …   Wikipedia

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• Hobbing machine — A hobbing machine is a special form of milling machine that cuts gears. It is the major industrial process for cutting (as opposed to grinding) spur gears of involute form.The machine forms the gear via a generating process by rotating the gear… …   Wikipedia