Plasma cutting is a process that uses a high-velocity jet of ionized gas, or plasma, to cut through electrically conductive materials. This technique is commonly used for cutting metals like steel, aluminum, and copper. The plasma is created by passing an electric current through a gas, which heats it to extremely high temperatures, allowing it to melt and blow away the material being cut. The process is known for its speed and precision, making it a popular choice in industries such as manufacturing and fabrication. Plasma cutting can be performed manually or with automated machines, providing versatility for various applications and project sizes.