What is the function of the cutting torch flame during oxy-fuel cutting?

The primary function of the cutting torch flame during oxy-fuel cutting is to provide the necessary heat to melt the metal. In oxy-fuel cutting, a mixture of oxygen and fuel gas (commonly acetylene) is ignited to create a high-temperature flame that can heat metal to its ignition temperature. Once the metal reaches this temperature, it is then subjected to a stream of oxygen, which reacts with the molten metal to oxidize it and blow it away, thus effectively cutting through the material.

This process requires obtaining a flame that is hot enough to melt the metal and maintain the cutting action. The ability to precisely control the flame temperature is crucial for effective cutting, as different metals require different flame characteristics to achieve optimal results. Therefore, understanding that the flame’s main role is to generate sufficient heat leads to successful oxy-fuel cutting practices.