What is Arc Cutting in Welding?

Arc cutting is a thermal cutting process that severs or removes metal by melting with the heat of an arc between an electrode and the workpiece.

What is the arc cutting process?

The process can be used to cut all types of metals, including carbon steel, stainless steel, aluminum, cast iron, and nickel alloys.

There are 2 main types of arc cutting processes:

  1. Oxy-fuel cutting uses a fuel gas (usually acetylene, propane, or natural gas) and oxygen to generate the arc. The heat of the arc melts the metal, and the oxygen reacts with the metal to create oxides that are blown away by the fuel gas.
  2. Plasma cutting uses an electrically conductive gas to create the arc. The gas is ionized by the heat of the arc, and this plasma is used to cut through the metal.

Arc cutting can be used to cut metal in a variety of ways, including:

  • straight cuts,
  • bevel cuts,
  • and contour cuts.

The process can also be used to create holes in metal.

What are the benefits of arc cutting?

Arc cutting has several benefits over other thermal cutting processes, including:

  • higher cutting speeds,
  • less heat affected zone,
  • narrower kerf width,
  • and the ability to cut thicker materials.

What are the disadvantages of arc cutting?

There are also some disadvantages to arc cutting, including:

  • higher costs for equipment and consumables,
  • the need for trained operators,
  • and the potential for arc flash hazards.

What is arc welding and a cutting?

  • Arc welding is a process that uses an electric arc to heat the metal and create a weld.
  • Cutting with an arc welder is similar to oxy-fuel cutting, but the arc welder can be used to cut thicker pieces of metal.

What is metal arc cutting?

Metal arc cutting is a process that uses an electric arc to heat the metal and create a cut.

Arc cutting machine

An arc cutting machine is a machine that uses an electric arc to cut metal. The machine may be a plasma cutter, oxy-fuel cutter, or arc welder.


Arc cutting is a versatile and widely used welding process. It can be used to cut all types of metals, and it can be used to create a variety of different cuts. If you need to cut metal, arc cutting is an excellent option to consider.

Related Links

Air carbon arc cutting
Air Carbon Arc Cutting: Fundamentals, Industrial Applications and Benefits
Arc Cutting Tools and Gouging Electrodes – Welding – Grainger Industrial Supply
CAC: Carbon Arc Cutting Process and Tips

Related Videos