repeatable grinding

  • 1Faceting machine — A faceting machine is broadly defined as any device that allows the user to place and polish facets onto a mineral specimen. Machines can range in sophistication from primitive jamb peg machines to highly refined, and highly expensive,… …

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  • 2White Portland cement — or white ordinary Portland cement (WOPC) is similar to ordinary, gray Portland cement in all respects except for its high degree of whiteness. Obtaining this color requires substantial modification to the method of manufacture, and because of… …

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  • 3Machine taper — A machine taper is a system for securing cutting bits and other accessories to a machine tool s spindle. Contents 1 Explanation 2 Use 3 Types 3.1 Morse 3.1.1 …

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  • 4Vulcanization — (or Vulcanisation) refers to a specific curing process of rubber involving high heat and the addition of sulfur or other equivalent curatives. It is a chemical process in which polymer molecules are linked to other polymer molecules by atomic… …

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  • 5Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal …

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  • 6Industrial robot — Articulated industrial robot operating in a foundry …

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  • 7Table saw — A table saw, equipped for cutting large pieces of sheet stock. Other names Sawbench Classification Power tool Manufacturer Bosch, Makita …

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  • 8Caliper — For other uses, see Caliper (disambiguation). A vernier caliper …

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  • 9Turret lathe — Hartness 3x36 flat turret lathe with cross sliding head, equipped for bar work, 1910.[1] The turret lathe is a form of metalworking lathe that is used for repetitive production of duplicate parts, which by the nature of their cutting process are… …

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  • 10Inventions in medieval Islam — A significant number of inventions were developed in the medieval Islamic world, a geopolitical region that has at various times extended from Al Andalus and Africa in the west to the Indian subcontinent and Malay Archipelago in the east.… …

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