Oxy-Fuel Cutting

Oxy-Fuel Cutting

Oxy fuel cutting, also known as flame cutting, is the most widely applied industrial thermal cutting processes. The process is used for cutting carbon plate from 5/8” through 12” thick and there are several fuel and nozzle design options that can greatly enhance cutting quality and speed. It is also cost effective because it can be used manually or mechanized.

O’Neal can cut parts from your drawings using DXF’s or manual programming.

The Oxy Fuel Cutting Process

A mixture of oxygen and the chosen fuel gas preheats the metal to its ignition temperature (which is well below its melting point). A jet of pure oxygen is guided into the preheated area, catalyzing an intense exothermic chemical reaction between the oxygen and the metal to create slag, or iron oxide. The oxygen jet then blows away this iron oxide, which allows the jet to pierce through the material and continue to cut through the metal.

For oxy fuel cutting to work, there are requirements that need to be met:

  • The material’s ignition temperature must be lower than its melting point. If not, the material would melt before any flame cutting could be done.
  • The oxide’s melting point must be lower than the melting point of the surrounding material to enable the oxygen jet to blow it away.
  • The oxidation reaction between the jet and the metal must be adequate to maintain the ignition temperature.
  • Small amounts of gaseous reaction products should be produce so that the cutting oxygen is not diluted in any way.

The most commonly used fuel gases for oxy fuel cutting are:

  • Acetylene
  • Propane
  • MAPP (methylacetylene-propadiene)
  • Propylene
  • Natural gas

Why Oxy Fuel Cutting?

Oxy fuel cutting brings much more than cost-effectiveness to the table. It provides high-quality cut and smooth, vertical planes of cut on material surfaces. The high heat input of the process allows carbonizing and hardening within the area of the heat affected.

For inquiries, call us today at 800-861-8272.