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2. Prices of chemical elements - Wikipedia

   en.wikipedia.org/wiki/Prices_of_chemical_elements

   Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars. ... (⁠ mg / kg ⁠) Price [7] Year Source Notes USD/kg USD/L [c] 1: H: Hydrogen ...

3. List of welding processes - Wikipedia

   en.wikipedia.org/wiki/List_of_welding_processes

   This is a list of welding processes, separated into their respective categories. The associated N reference numbers (second column) are specified in ISO 4063 (in the European Union published as EN ISO 4063 ). [ 1 ]

4. 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.

5. 6013 aluminium alloy - Wikipedia

   en.wikipedia.org/wiki/6013_aluminium_alloy

   6013 aluminium alloy consist of magnesium, silicon, copper, manganese, iron, zinc, chromium, and titanium as minor alloying elements. [ 1 ] Chemical Composition

6. Welding - Wikipedia

   en.wikipedia.org/wiki/Welding

   Welding is a fabrication process that joins materials, ... Today, as the science ... The Charpy impact test per ASTM A370; The crack-tip opening displacement (CTOD ...

7. Gas metal arc welding - Wikipedia

   en.wikipedia.org/wiki/Gas_metal_arc_welding

   Spray transfer GMAW. Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) and metal active gas (MAG) is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to fuse (melt and join).

8. 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 It was the first arc-welding process developed but is not used for many applications today, having been replaced by twin-carbon-arc welding and other variations.

9. Oxy-fuel welding and cutting - Wikipedia

   en.wikipedia.org/wiki/Oxy-fuel_welding_and_cutting

   Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the United States) and oxy-fuel cutting are processes that use fuel gases (or liquid fuels such as gasoline or petrol, diesel, biodiesel, kerosene, etc) and oxygen to weld or cut metals.