milling machine

a machine tool for rotating a cutter (milling cutter) to produce plane or formed surfaces on a workpiece, usually by moving the work past the cutter. Also called miller.
[1875-80]

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Machine tool that rotates a circular tool with numerous cutting edges arranged symmetrically about its axis, called a milling cutter.

The metal workpiece is usually held in a vise clamped to a table that can move in three perpendicular directions. Cutters of many shapes and sizes are available for a wide variety of milling operations. Milling machines cut flat surfaces, grooves, shoulders, inclined surfaces, dovetails, and T-slots. Various form-tooth cutters are used for cutting concave forms and convex grooves, for rounding corners, and for cutting gear teeth.

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      device that rotates a circular tool that has a number of cutting edges symmetrically arranged about its axis; the workpiece is commonly held in a vise or similar device clamped to a table that can move in three perpendicular directions. Disk- or barrel-shaped cutters are clamped through holes in their centres to arbors (shafts) attached to the machine spindle; they have teeth on their peripheries only or on both peripheries and faces. An end mill is a cutter shaped like a pencil with a tapered shank that fits into the machine spindle; it has cutting teeth on its face and spiral blades on the lateral surface.

      In the milling operation the workpiece is carried on a table that is driven either manually or by power against the rotating cutter. Milling machines usually produce flat surfaces, but any shape that can be ground on the cutter will be reproduced on the work. To mill the teeth of a spur gear, a disk-type cutter with its cutting edges in the shape of the space (groove) between the teeth of the gear is used, milling the gear blank one space at a time.

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Universalium. 2010.

Look at other dictionaries:

  • Milling machine — Milling Mill ing, n. The act or employment of grinding or passing through a mill; the process of fulling; the process of making a raised or intented edge upon coin, etc.; the process of dressing surfaces of various shapes with rotary cutters. See …   The Collaborative International Dictionary of English

  • milling machine — n. a machine with a table on which material rests as it is fed against a rotating milling cutter …   English World dictionary

  • Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center …   Wikipedia

  • milling machine — noun machine tool in which metal that is secured to a carriage is fed against rotating cutters that shape it • Syn: ↑miller • Hypernyms: ↑shaper, ↑shaping machine * * * noun : a machine tool on which work usually of metal secured to a carriage is …   Useful english dictionary

  • milling machine — noun Date: 1849 a machine tool on which work usually of metal secured to a carriage is shaped by rotating milling cutters …   New Collegiate Dictionary

  • milling machine — n. machine equipped with milling cutters to cut and shape metal objects …   English contemporary dictionary

  • milling machine — mill′ing machine n. mac a machine tool for rotating a cutter(mill′ing cut ter)to produce plane or formed surfaces on a piece of work, usu. by moving the work past the cutter Also called miller 2) Etymology: 1875–80 …   From formal English to slang

  • milling machine — [1] A machine that uses a variety of rotating cutter wheels to cut splines, gears, keyways, etc. [2] A machine tool with a table on which rests material which is cut by a rotating cutting tool held by a horizontal arbor or vertical spindle …   Dictionary of automotive terms

  • milling machine — noun A machine tool in which a rotating cutter is moved against the workpiece (or vice versa) in order to cut the latter to a desired shape …   Wiktionary

  • milling machine — /ˈmɪlɪŋ məʃin/ (say miling muhsheen) noun a machine tool with a rotating cutter, used to produce plane and formed surfaces …   Australian English dictionary

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