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2. Arc welding - Wikipedia

   en.wikipedia.org/wiki/Arc_welding

   Arc welding power supplies can deliver either direct (DC) or alternating (AC) current to the work, while consumable or non-consumable electrodes are used. The welding area is usually protected by some type of shielding gas (e.g. an inert gas), vapor, or slag. Arc welding processes may be manual, semi-automatic, or fully automated.

3. Shielded metal arc welding - Wikipedia

   en.wikipedia.org/wiki/Shielded_metal_arc_welding

   Shielded metal arc welding (SMAW), ... E7024 is a fast-fill electrode, used primarily to make flat or horizontal fillet welds using AC, DCEN, or DCEP. Examples of ...

4. Welding - Wikipedia

   en.wikipedia.org/wiki/Welding

   The efficiency is dependent on the welding process used, with shielded metal arc welding having a value of 0.75, gas metal arc welding and submerged arc welding, 0.9, and gas tungsten arc welding, 0.8. [59] Methods of alleviating the stresses and brittleness created in the HAZ include stress relieving and tempering. [60]

5. Carbon arc welding - Wikipedia

   en.wikipedia.org/wiki/Carbon_arc_welding

   Carbon arc welding (CAW) is an arc welding process which produces coalescence of metals by heating them with an arc between a non-consumable carbon electrode and the work-piece. It was the first arc-welding process developed but is not used for many applications today, having been replaced by twin-carbon-arc welding and other variations.

6. Submerged arc welding - Wikipedia

   en.wikipedia.org/wiki/Submerged_arc_welding

   A submerged arc welder used for training Close-up view of the control panel A schematic of submerged arc welding Pieces of slag from submerged arc welding exhibiting glassy surface due to silica (SiO 2). Submerged arc welding (SAW) is a common arc welding process. The first SAW patent was taken out in 1935.

7. Twin-carbon arc welding - Wikipedia

   en.wikipedia.org/wiki/Twin-carbon_arc_welding

   Twin-carbon arc welding in action. Unlike single-carbon arc welding, in twin-carbon arc welding (TCAW) the arc is maintained between two carbon electrodes [1] [2]: 22 held in a special holder. [2]: 67 The Ac current was usually used. It was switched on by operating bringing two electrodes closer by a mechanism which also adjusted arc length.

8. List of welding processes - Wikipedia

   en.wikipedia.org/wiki/List_of_welding_processes

   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 Automatic, arc submerged in granular flux

9. Shielding gas - Wikipedia

   en.wikipedia.org/wiki/Shielding_gas

   C-40 (60% argon/40% CO 2) is used for some flux-cored arc welding cases. Better weld penetration than C-25. C-25 (75% argon/25% CO 2) is commonly used by hobbyists and in small-scale production. Limited to short circuit and globular transfer welding. Common for short-circuit gas metal arc welding of low carbon steel.