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  2. Radio-frequency welding - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_welding

    Radio-frequency welding, also known as dielectric welding and high-frequency welding, is a plastic welding process that utilizes high-frequency electric fields to induce heating and melting of thermoplastic base materials. [1] The electric field is applied by a pair of electrodes after the parts being joined are clamped together.

  3. Dissimilar friction stir welding - Wikipedia

    en.wikipedia.org/wiki/Dissimilar_friction_stir...

    Dissimilar friction stir welding (DFSW) is the application of friction stir welding (FSW), invented in The Welding Institute (TWI) in 1991, [1] to join different base metals including aluminum, copper, steel, titanium, magnesium and other materials. [2] It is based on solid state welding that means there is no melting.

  4. Friction stir welding - Wikipedia

    en.wikipedia.org/wiki/Friction_stir_welding

    Friction stir welding (FSW) is a solid-state joining process that uses a non-consumable tool to join two facing workpieces without melting the workpiece material. [ 1 ] [ 2 ] Heat is generated by friction between the rotating tool and the workpiece material, which leads to a softened region near the FSW tool.

  5. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    Laser-hybrid welding: Combines LBW with GMAW in the same welding head, able to bridge gaps up to 2mm (between plates), previously not possible with LBW alone. Automotive, Shipbuilding, Steelwork industries Percussion welding: 77: PEW Following an electrical discharge, pressure is applied which forges the materials together Components of switch ...

  6. Electroslag welding - Wikipedia

    en.wikipedia.org/wiki/Electroslag_welding

    Electroslag welding (ESW) is a highly productive, single pass welding process for thick (greater than 25 mm up to about 300 mm) materials in a vertical or close to vertical position. (ESW) is similar to electrogas welding, but the main difference is the arc starts in a different location. An electric arc is initially struck by wire that is fed ...

  7. Friction welding - Wikipedia

    en.wikipedia.org/wiki/Friction_welding

    Friction welding (FWR) is a solid-state welding and bonding process that generates heat through mechanical friction between workpieces in relative motion to one another. The process is used with the addition of a lateral force called "upset" to plastically displace and fuse the materials. [ 1 ]

  8. Rotary friction welding - Wikipedia

    en.wikipedia.org/wiki/Rotary_friction_welding

    Rotary friction welding (RFW) one of the methods of friction welding, the classic way of which uses the work of friction to create a not separable weld. Typically one welded element is rotated relative to the other and to the forge (pressed down by axial force). The heating of the material is caused by friction work and creates a permanent ...

  9. Oxy-fuel welding and cutting - Wikipedia

    en.wikipedia.org/wiki/Oxy-fuel_welding_and_cutting

    It is also possible to separate oxygen from air by passing the air, under pressure, through a zeolite sieve that selectively adsorbs the nitrogen and lets the oxygen (and argon) pass. This gives a purity of oxygen of about 93%. This method works well for brazing, but higher-purity oxygen is necessary to produce a clean, slag-free kerf when cutting.

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