Flame cutting is an easy method for cutting steel with a maximum thickness of 400mm and a tolerance of +/-2mm. Flame cutting is the main process for the cutting of sheet metal using gages to produce a controlled flame that melts away the metal and blasts away the molten slag. This is a cost effective choice because of the efficiency of the method, making it ideal for production runs. The flame is obtained by the combustion of a specified gas mixed with pure oxygen.
When compared to laser cutting, flame cutting is able to cut a much thicker profile, but it may require a finishing process due to its inexactitude.