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  2. Corrugated galvanised iron - Wikipedia

    en.wikipedia.org/wiki/Corrugated_galvanised_iron

    Corrugated galvanised iron ( CGI) or steel, colloquially corrugated iron (near universal), wriggly tin (taken from UK military slang), pailing (in Caribbean English), corrugated sheet metal (in North America), zinc (in Cyprus and Nigeria) or custom orb / corro sheet (Australia) is a building material composed of sheets of hot-dip galvanised ...

  3. Sheet metal - Wikipedia

    en.wikipedia.org/wiki/Sheet_metal

    Sheet metal is metal formed into thin, flat pieces, usually by an industrial process. Thicknesses can vary significantly; extremely thin sheets are considered foil or leaf, and pieces thicker than 6 mm (0.25 in) are considered plate, such as plate steel, a class of structural steel . Sheet metal is available in flat pieces or coiled strips.

  4. Laser cutting - Wikipedia

    en.wikipedia.org/wiki/Laser_cutting

    For sheet metal cutting, the focal length is usually 1.5–3 inches (38–76 mm). Advantages of laser cutting over mechanical cutting include easier work holding and reduced contamination of workpiece (since there is no cutting edge which can become contaminated by the material or contaminate the material). Precision may be better since the ...

  5. Deep drawing - Wikipedia

    en.wikipedia.org/wiki/Deep_drawing

    Deep drawing is a sheet metal forming process in which a sheet metal blank is radially drawn into a forming die by the mechanical action of a punch. [1] It is thus a shape transformation process with material retention. The process is considered "deep" drawing when the depth of the drawn part exceeds its diameter.

  6. Drawing (manufacturing) - Wikipedia

    en.wikipedia.org/wiki/Drawing_(manufacturing)

    Drawing is a manufacturing process that uses tensile forces to elongate metal, glass, or plastic. As the material is drawn (pulled), it stretches and becomes thinner, achieving a desired shape and thickness. Drawing is classified into two types: sheet metal drawing and wire, bar, and tube drawing. Sheet metal drawing is defined as a plastic ...

  7. L. Lewis Sagendorph - Wikipedia

    en.wikipedia.org/wiki/L._Lewis_Sagendorph

    Sagendorph moved his company to Cincinnati, Ohio in 1879 and founded the Sagendorph Iron Roofing and Corrugating Company in partnership with Major Harlan P. Lloyd. The new company manufactured an array of sheet steel products. In 1889 he sold the company and moved to Philadelphia and started the Penn Metal Ceiling & Roofing Company.

  8. Roll forming - Wikipedia

    en.wikipedia.org/wiki/Roll_forming

    It typically begins with a large coil of sheet metal, between 1 inch (2.5 cm) and 20 inches (51 cm) in width, and 0.004 inches (0.10 mm) and 0.125 inches (3.2 mm) thick, supported on an uncoiler. The strip is fed through an entry guide to properly align the material as it passes through the rolls of the mill, each set of rolls forming a bend ...

  9. Bending (metalworking) - Wikipedia

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

    Bending (metalworking) Bending. A chimney starter, a sample product of bending. Bending is a manufacturing process that produces a V-shape, U-shape, or channel shape along a straight axis in ductile materials, most commonly sheet metal. [1] Commonly used equipment include box and pan brakes, brake presses, and other specialized machine presses.

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