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  2. Electric resistance welding - Wikipedia

    en.wikipedia.org/wiki/Electric_resistance_welding

    Electric resistance welding (ERW) is a welding process in which metal parts in contact are permanently joined by heating them with an electric current, melting the metal at the joint. [1] Electric resistance welding is widely used, for example, in manufacture of steel pipe and in assembly of bodies for automobiles. [2]

  3. Welding joint - Wikipedia

    en.wikipedia.org/wiki/Welding_joint

    Pipes and tubing can be made from rolling and welding together strips, sheets, or plates of material. [4] Flare-groove joints are used for welding metals that, because of their shape, form a convenient groove for welding, such as a pipe against a flat surface. Selection of the right weld joint depends on the thickness and process used.

  4. Submerged arc welding - Wikipedia

    en.wikipedia.org/wiki/Submerged_arc_welding

    This helps fuse the toe of the weld to the base metal. [4] The electrode composition depends upon the material being welded. Alloying elements may be added in the electrodes. Electrodes are available to weld mild steels, high carbon steels, low and special alloy steels, stainless steel and some of the nonferrous of copper and nickel. Electrodes ...

  5. Welding - Wikipedia

    en.wikipedia.org/wiki/Welding

    Welding a handle onto a pitcher can usually be done with relative ease. However, when welding a tube to another tube, a combination of blowing and suction, and pressing and pulling is used to ensure a good seal, to shape the glass, and to keep the surface tension from closing the tube in on itself. Sometimes a filler rod may be used, but ...

  6. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    Gas flames heat surfaces and pressure produces the weld Pipe, railroad rails (limited) ... Damascus steel: Friction welding: 42: FRW Thin heat affected zone, oxides ...

  7. Butt welding - Wikipedia

    en.wikipedia.org/wiki/Butt_welding

    Butt welding is a commonly used technique in welding that can either be automated or done by hand on steel pieces. [1] Butt welding can also be done with brazing for copper pieces. It is used to attach two pieces of metal together such as pipe, framework in factories, and also flanges. [1]

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  9. Orbital welding - Wikipedia

    en.wikipedia.org/wiki/Orbital_welding

    Typically only 316L stainless steel tubing (not pipe) and fittings are used for automatic orbital GTA welding and are obtained from a number of specialty manufacturers. The weld quality depends upon having a reasonably clean source of Argon for backing and shielding gas. Minimum purity would be 99.995% for typical industrial applications.

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