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  2. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    finish: An italic f (Latin small letter f) written on a line representing a surface was an old way of indicating that the surface was to be machined rather than left in the as-cast or as-forged state. The "f" came from "finish" in the sense of "machine finish" as opposed to raw stock/casting/forging.

  3. Surface finish - Wikipedia

    en.wikipedia.org/wiki/Surface_finish

    Surface finish, also known as surface texture or surface topography, is the nature of a surface as defined by the three characteristics of lay, surface roughness, and waviness. [1] It comprises the small, local deviations of a surface from the perfectly flat ideal (a true plane ).

  4. Product and manufacturing information - Wikipedia

    en.wikipedia.org/wiki/Product_and_manufacturing...

    The PMI also may be used by tolerance analysis and coordinate-measuring machine (CMM) software applications if the modeling application permits. PMI items are often organized within annotation views. Annotation views typically view including camera/view position, selected and also the particular state of the assembly (visibility, rendering mode ...

  5. Honing (metalworking) - Wikipedia

    en.wikipedia.org/wiki/Honing_(metalworking)

    The surface of a honed workpiece. Honing is an abrasive machining process that produces a precision surface on a metal workpiece by scrubbing an abrasive grinding stone or grinding wheel against it along a controlled path. Honing is primarily used to improve the geometric form of a surface, but can also improve the surface finish.

  6. Symbols and conventions used in welding documentation

    en.wikipedia.org/wiki/Symbols_and_conventions...

    Supplementary symbols go at the junction of the reference line and the arrow tip. One such symbol is a circle to indicate an all-around weld, which goes on every side of the joint. Finish symbols go above the reference line to indicate the surface contour or finish of the weld such as flush, convex or concave.

  7. Surface grinding - Wikipedia

    en.wikipedia.org/wiki/Surface_grinding

    Surface grinding is done on flat surfaces to produce a smooth finish. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles ( grinding wheel ) cuts chips of metallic or nonmetallic substance from a workpiece, making a face of it flat or smooth.

  8. Surface finishing - Wikipedia

    en.wikipedia.org/wiki/Surface_finishing

    Also known as a mirror finish. This finish is produced by polishing with at least a 320-grit belt or wheel finish. Care will be taken in making sure all surface defects are removed. The part is sisal buffed and then color buffed to achieve a mirror finish. The quality of this finish is dependent on the quality of the metal being polished.

  9. Engineering drawing - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing

    The list of materials (L/M, LM, LoM), bill of materials (B/M, BM, BoM), or parts list (P/L, PL) is a (usually tabular) list of the materials used to make a part, and the parts used to make an assembly. It may contain instructions for heat treatment, finishing, and other processes, for each part number.