Which finishing option describes the use of a lance to deliver oxygen for cutting?

Which finishing option describes the use of a lance to deliver oxygen for cutting?

• A. Oxygen lance cutting
• B. Oxyfuel gas cutting
• C. Plasma arc cutting
• D. Water jet cutting

Answer: (A)

Oxygen lance cutting is the method described. It centers on directing a focused stream of oxygen through a lance into the cut zone to support the oxidation of the metal, which allows the material to burn away along the cut line. This distinguishes it from other cutting methods: oxy-fuel gas cutting uses a flame produced by fuel gas with oxygen without a separate lance, plasma arc cutting uses a plasma jet to melt metal rather than rely on oxidation, and water jet cutting uses a high-pressure stream of water (often with an abrasive) to erode the metal. The key idea here is the delivery of oxygen through a lance to drive the cutting action.

Oxygen lance cutting is the method described. It centers on directing a focused stream of oxygen through a lance into the cut zone to support the oxidation of the metal, which allows the material to burn away along the cut line. This distinguishes it from other cutting methods: oxy-fuel gas cutting uses a flame produced by fuel gas with oxygen without a separate lance, plasma arc cutting uses a plasma jet to melt metal rather than rely on oxidation, and water jet cutting uses a high-pressure stream of water (often with an abrasive) to erode the metal. The key idea here is the delivery of oxygen through a lance to drive the cutting action.