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Oxy-fuel welding and cutting

Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the U.S.) and oxy-fuel cutting are processes that use fuel gases and oxygen to weld and cut metals, respectively. French engineers Edmond Fouche and Charles Picard became the first to develop oxygen-acetylene welding in 1903.

Pure oxygen, instead of air (20% oxygen/80% nitrogen), is used to increase the flame temperature to allow localized melting of the workpiece material (e.g. steel) in a room environment. A common propane/air flame burns at about 3,630 F, a propane/oxygen flame burns at about 4,530 F and an acetylene/oxygen flame burns at about 6,330 F .

Oxy-fuel is one of the oldest welding processes, though in recent years it has become less popular in industrial applications. However, it is still widely used for welding pipes and tubes, as well as repair work. It is also frequently well-suited, and favored, for fabricating some types of metal-based artwork.


Oxy-Fuel Information

In oxy-fuel welding, a welding torch is used to weld metals. Welding metal results when two pieces are heated to a temperature that produces a shared pool of molten metal. The molten pool is generally supplied with additional metal called filler. Filler material depends upon the metals to be welded.

In oxy-fuel cutting, a cutting torch is used to heat metal to kindling temperature. A stream of oxygen is then trained on the metal, and metal burns in that oxygen and then flows out of the cut (kerf) as an oxide slag.

Torches that do not mix fuel with oxygen (combining, instead, atmospheric air) are not considered oxy-fuel torches and can typically be identified by a single tank (Oxy-fuel welding/cutting generally requires two tanks, fuel and oxygen). Most metals cannot be melted with a single-tank torch. As such, single-tank torches are typically used only for soldering and brazing, rather than welding.
Uses

Oxy-gas torches are or have been used for:
• Welding metal: see below.
• Cutting metal: see below.
• Also, oxy-hydrogen flames are used:

in Stone Work for "flaming" where the stone is heated and a top layer crackles and breaks. A
steel circular brush is attached to an angle grinder and used to remove the first layer leaving behind a bumpy surface similar to hammered bronze.In the glass industry for "fire polishing".
In jewelry production for "water welding" using a water torch. Formerly, to heat lumps of quicklime to obtain a bright white light called limelight, in theatres or optical ("magic") lanterns.
In platinum works, as platinum is fusible only in the oxyhydrogen flame and in an electric furnace.

In short, oxy-fuel equipment is quite versatile, not only because it is preferred for some sorts of iron or steel welding but also because it lends itself to brazing, braze-welding, metal heating (for annealing or tempering, bending or forming), and the loosening of corroded nuts and bolts and also is the ubiquitous means for oxy-fuel cutting of ferrous metals.
ARC Gas & Supply LLC
4560 Nicky Boulevard,
Cuyahoga Heights,Ohio 44125

E-mail Us

Call: 216-341-5882

Fax: 216-341-5886
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ARC Gas & Supply LLC
4560 Nicky Boulevard,
Cuyahoga Heights,Ohio 44125

E-mail Us

Call: 216-341-5882

Fax: 216-341-5886
Gases
Hardgoods
ARC Gas & Supply LLC
4560 Nicky Boulevard,
Cuyahoga Heights,Ohio 44125

E-mail Us

Call: 216-341-5882

Fax: 216-341-5886
Gases
Hardgoods
ARC Gas & Supply LLC
4560 Nicky Boulevard,
Cuyahoga Heights,Ohio 44125

E-mail Us

Call: 216-341-5882

Fax: 216-341-5886
Gases
Hardgoods