In air carbon arc cutting, what is the primary purpose of compressed air?

In air carbon arc cutting, the primary purpose of compressed air is to dislodge molten material. When the carbon electrode creates an arc that melts the metal, the intense heat generates a pool of molten material. The compressed air is directed to blow away this molten material from the cutting area, which helps to clear the path for the cut and improve visibility for the operator. This action aids in ensuring a clean cut while maintaining the efficiency of the process. By combining the energy from the arc with the force of the compressed air, operators can effectively manage the molten steel and achieve precise cuts.

Other roles of compressed air, such as cooling or enhancing flame temperature, are secondary to its primary function in the cutting process. While oxygen is essential in some cutting processes, air carbon arc cutting primarily relies on the proper application of electrical energy and the force of air to achieve optimal results.