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  2. Mk 153 Shoulder-Launched Multipurpose Assault Weapon

    en.wikipedia.org/wiki/Mk_153_Shoulder-Launched...

    The Mk 153 Shoulder-Launched Multipurpose Assault Weapon ( SMAW) is a smoothbore shoulder-fired rocket launcher. [2] It is a portable assault weapon (i.e., bunker buster) and has a secondary anti-armor ability. Developed from the B-300, it was introduced to the United States Armed Forces in 1984. It has a maximum effective range of 500 metres ...

  3. Shielded metal arc welding - Wikipedia

    en.wikipedia.org/wiki/Shielded_metal_arc_welding

    Shielded metal arc welding ( SMAW ), also known as manual metal arc welding ( MMA or MMAW ), flux shielded arc welding[ 1] or informally as stick welding, is a manual arc welding process that uses a consumable electrode covered with a flux to lay the weld. An electric current, in the form of either alternating current or direct current from a ...

  4. M141 bunker defeat munition - Wikipedia

    en.wikipedia.org/wiki/M141_Bunker_Defeat_Munition

    15–1000+ meters. The M141 bunker defeat munition ( BDM) is a disposable single-shot, shoulder-fired rocket launcher designed to defeat hardened structures. It is a modification of the United States Marine Corps Mk 153 shoulder-launched multipurpose assault weapon (SMAW) and is also called the SMAW-D (where D is for disposable ).

  5. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    Aerospace, Construction (piping), Tool and Die Plasma Arc Welding: 15: PAW Nonconsumable electrode, constricted arc Tubing, instrumentation Shielded Metal Arc Welding [5] 111: SMAW Consumable electrode covered in flux, can weld any metal as long as they have the right electrode Construction, outdoors, maintenance Submerged Arc Welding: 121: SAW

  6. Gas tungsten arc welding - Wikipedia

    en.wikipedia.org/wiki/Gas_tungsten_arc_welding

    Gas tungsten arc welding ( GTAW, also known as tungsten inert gas welding or TIG, and heliarc welding when helium is used) is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area and electrode are protected from oxidation or other atmospheric contamination by an inert shielding gas ( argon or ...

  7. Submerged arc welding - Wikipedia

    en.wikipedia.org/wiki/Submerged_arc_welding

    A submerged arc welder used for trainingClose-up view of the control panelA schematic of submerged arc weldingPieces of slag from submerged arc welding exhibiting glassy surface due to silica (SiO2). Submerged arc welding(SAW) is a common arc weldingprocess. The first SAW patent was taken out in 1935.

  8. Welding power supply - Wikipedia

    en.wikipedia.org/wiki/Welding_power_supply

    A welding power supply is a device that provides or modulates an electric current to perform arc welding. [ 1] There are multiple arc welding processes ranging from Shielded Metal Arc Welding (SMAW) to inert shielding gas like Gas metal arc welding (GMAW) or Gas tungsten arc welding (GTAW). Welding power supplies primarily serve as devices that ...

  9. 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. While the tool is traversed along the ...

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