What is the process of oxy-acetylene welding?

Oxy-acetylene welding uses a high-heat, high-temperature flame that is produced by burning a fuel gas (most commonly acetylene) mixed with pure oxygen. Gas flows through flexible hoses, with the welder controlling the flow via the torch. The filler rod is then melted with the base material.

Which process uses acetylene?

Acetylene is used for welding and cutting. The welding process that uses acetylene is known as oxy-fuel cutting or gas cutting. This method is used to cut or weld materials that require temperatures as high as 3,500 °C (6,330 °F). Among all other gases, acetylene is capable of producing the hottest flame.

Which gas is used in oxy-acetylene welding?

Oxy-acetylene welding uses a mixture of acetylene gas and oxygen gas to feed the welding torch. Oxy-acetylene welding is the most commonly used gas welding technique.

How do you use oxyacetylene gas welding?

1. Separately purge both oxygen and fuel gas lines.
2. Open fuel gas valve 1/2 turn.
3. Ignite flame with striker.
4. Increase fuel gas flow until flame leaves end of tip and no smoke is present.
5. Decrease until flame goes back to tip.
6. Open oxygen valve and adjust to neutral flame.
7. Depress oxygen lever and make necessary adjustments.

What is the process of gas welding?

Gas welding is a type of liquid state welding process in which fuel gases burns to generate heat. This heat is further used to melt interface surfaces of welding plates which are held together to form a joint. In this process, mostly oxy-acetylene gas is used as fuel gas.

Why oxy-acetylene is used in welding?

Acetylene produces a flame temperature of ~3100 degree Celsius along with oxygen. This high flame temperature makes acetylene a suitable choice for gas welding steel. 2. Welding: When burned in oxygen, acetylene produces a reducing zone, which easily cleans the metal surface.

Why is oxyacetylene flame used for welding process?

Which gas is used in gas welding?

Acetylene
Acetylene is the only fuel gas suitable for gas welding because of its favourable flame characteristics of both high temperature and high propagation rates. Other fuel gases, such as propane, propylene or natural gas, produce insufficient heat input for welding but are used for cutting, torch brazing and soldering.

What type of process is gas welding?

Gas Welding is a welding process that melts and joins the metals by heating them with a flame caused by a reaction of fuel gas and oxygen. The flux may be used to deoxidize and cleanse the weld metal. The flux melts, solidify and forms a slag on the resultant weld bead.

Why acetylene is used as welding gas?

What is used in gas welding?

Acetylene is the only fuel gas suitable for gas welding because of its favourable flame characteristics of both high temperature and high propagation rates. Other fuel gases, such as propane, propylene or natural gas, produce insufficient heat input for welding but are used for cutting, torch brazing and soldering.

What type of gas is used in welding?

Gases used in welding and cutting processes include: shielding gases such as carbon dioxide, argon, helium, etc. fuel gases such as acetylene, propane, butane, etc. oxygen, used with fuel gases and also in small amounts in some shielding gas mixtures.