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  2. 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.

  3. Friction stir processing - Wikipedia

    en.wikipedia.org/wiki/Friction_stir_processing

    In friction stir processing (FSP), a rotating tool is used with a pin and a shoulder to a single piece of material to make specific property enhancement, such as improving the material's toughness or flexibility, in a specific area in the micro-structure of the material via fine grain of a second material with properties that improve the first.(Ma) [6] Friction between the tool and workpieces ...

  4. Friction welding - Wikipedia

    en.wikipedia.org/wiki/Friction_welding

    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. Heat is generated by friction between the rotating tool and the workpiece material, which leads to a softened region near the FSW tool.

  5. 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.

  6. Friction stir spot welding - Wikipedia

    en.wikipedia.org/wiki/Friction_stir_spot_welding

    In friction stir spot welding, individual spot welds are created by pressing a rotating tool with high force onto the top surface of two sheets that overlap each other in the lap joint. The frictional heat and the high pressure plastify the workpiece material, so that the tip of the pin plunges into the joint area between the two sheets and ...

  7. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    The oldest welding process in the world. Oxides must be removed by flux or flames. Damascus steel: Friction welding: 42: FRW Thin heat affected zone, oxides disrupted by friction, needs sufficient pressure Aerospace industry, railway, land transport Friction stir welding: 43: FSW A rotating non-consumable tool is traversed along the joint line

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