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  2. Lapping - Wikipedia

    en.wikipedia.org/wiki/Lapping

    Small lapping plate made of cast iron. A piece of lead may be used as the lap, charged with emery, and used to cut a piece of hardened steel. The small plate shown in the first picture is a hand lapping plate. That particular plate is made of cast iron. In use, a slurry of emery powder would be spread on the plate and the workpiece simply ...

  3. Surface plate - Wikipedia

    en.wikipedia.org/wiki/Surface_plate

    Granite surface plate calibration should be performed routinely to maintain proper flatness and ensure measurement accuracy over time. The intervals between calibrations depends on the environment where the surface plate is located. When needed, lapping or resurfacing is provided to bring measurements within grade guidelines.

  4. Hand scraper - Wikipedia

    en.wikipedia.org/wiki/Hand_scraper

    A hand scraper is a single-edged tool used to scrape metal or other materials from a surface. This may be required where a surface needs to be trued, corrected for fit to a mating part, needs to retain oil (usually on a freshly ground surface), or to give a decorative finish. Surface plates were traditionally made by scraping. [1]

  5. Category:Grinding and lapping - Wikipedia

    en.wikipedia.org/wiki/Category:Grinding_and_lapping

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  6. Surface finishing - Wikipedia

    en.wikipedia.org/wiki/Surface_finishing

    An example would be grinding gates off of castings, deburring or removing excess weld material. It is coarse in appearance and applied by using 36–100 grit abrasive. [5] When the finish is specified as #3, the material is polished to a uniform 60–80 grit. #4 Architectural finish. Also known as brushed, directional or satin finish. A #4 ...

  7. Lapping (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Lapping_(disambiguation)

    Lapping is a machining process in which two surfaces are rubbed together with an abrasive between them. Lapping may also refer to: Lapping (magic), a set of techniques in conjuring; Lapping (motorsport), the act of passing someone who is one circuit behind; Lapping, the licking movement of an animal's tongue, usually for drinking

  8. Lap joint - Wikipedia

    en.wikipedia.org/wiki/Lap_joint

    A lap joint may be a full lap or half lap. In a full lap, no material is removed from either of the members that will be joined, resulting in a joint which is the combined thickness of the two members. In a half lap joint or halving joint, material is removed from both of the members so that the resulting joint is the thickness of the thickest ...

  9. Abrasive machining - Wikipedia

    en.wikipedia.org/wiki/Abrasive_machining

    Abrasive machining is a machining process where material is removed from a workpiece using a multitude of small abrasive particles. Common examples include grinding, honing, and polishing. Abrasive processes are usually expensive, but capable of tighter tolerances and better surface finish than other machining processes