Oxyfuel cutting uses which combination to produce a cutting flame?

Oxyfuel cutting uses which combination to produce a cutting flame?

• A. Electric arc and CO2
• B. Water and oil
• C. Compressed oxygen and fuel gas
• D. Laser beam and inert gas

Answer: (C)

Oxyfuel cutting relies on a flame created by burning a fuel gas in compressed oxygen. The fuel gas and oxygen mix produce a hot preheating flame that brings the metal to its ignition temperature; then a jet of oxygen is directed at the heated spot to oxidize and blow away the molten metal, forming the cut. This combination—compressed oxygen with a fuel gas—is what makes the cutting flame possible. Other methods use different energy sources or shielding gases, not this fuel-and-oxygen mix.

Oxyfuel cutting relies on a flame created by burning a fuel gas in compressed oxygen. The fuel gas and oxygen mix produce a hot preheating flame that brings the metal to its ignition temperature; then a jet of oxygen is directed at the heated spot to oxidize and blow away the molten metal, forming the cut. This combination—compressed oxygen with a fuel gas—is what makes the cutting flame possible. Other methods use different energy sources or shielding gases, not this fuel-and-oxygen mix.