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  2. Disc cutting lathe - Wikipedia

    en.wikipedia.org/wiki/Disc_cutting_lathe

    A disc cutting lathe is a device used to transfer an audio signal to the modulated spiral groove of a blank master disc for the production of phonograph records. Disc cutting lathes were also used to produce broadcast transcription discs and for direct-to-disc recording.

  3. Disc cutter - Wikipedia

    en.wikipedia.org/wiki/Disc_cutter

    For long straight cuts on sheet metal or for light cut-off work, a standard circular saw is used with a 7 + 1 ⁄ 4-inch cutting wheel. These cutting discs are made just like the smaller wheels of an angle grinder, with resin bonded abrasive material, or are of metal with a diamond-coated edge. A cutoff saw is used for cutting larger items ...

  4. Cutting tool (machining) - Wikipedia

    en.wikipedia.org/wiki/Cutting_tool_(machining)

    Cutting tool materials must be harder than the material which is to be cut, and the tool must be able to withstand the heat and force generated in the metal-cutting process. Also, the tool must have a specific geometry, with clearance angles designed so that the cutting edge can contact the workpiece without the rest of the tool dragging on the ...

  5. Flapwheel - Wikipedia

    en.wikipedia.org/wiki/Flapwheel

    Early radial flapwheel, for use with an electric drill. A flapwheel and the related flap disk is an abrasive disk, used for metal finishing. Unlike the simpler flat disks, made from a circular flat sheet of a coated abrasive, a flapwheel is made of multiple overlapping small pieces or 'flaps', bonded to a central hub.

  6. Machining vibrations - Wikipedia

    en.wikipedia.org/wiki/Machining_vibrations

    The explanation of the machine tool regenerative chatter was made by Tobias. S. A. and W. Fishwick in 1958, [2] by modeling the feedback loop between the metal cutting process and the machine tool structure, and came with the stability lobes diagram. The structure stiffness, damping ratio and the machining process damping factor, are the main ...

  7. Cutting tool material - Wikipedia

    en.wikipedia.org/wiki/Cutting_tool_material

    Cutting tool materials are materials that are used to make cutting tools which are used in machining (drill bits, tool bits, milling cutters, etc.) but not other cutting tools like knives or punches. Cutting tool materials must be harder than the material of the workpiece, even at high temperatures during the process.