To begin the process, one lights the flame and brings it close to the metal. The flame then makes the metal melt, and more oxygen is applied to blow the residues away. To finish the cut, one must repeatedly move the torch along the line where the incision is to be made.
Flame cutting has some pros and cons. One good thing is that you can use it on many kinds of metals such as low carbon steel, low alloy steels, and cast irons. Another good thing is that it is not too hard to set up and you don’t need a lot of fancy equipment. Flame cutting is also quick, and you can cut several inches of metal per minute depending on how thick it is. If you have a handheld manual torch, you can take the equipment with you wherever you go, like in the field or on job sites.
Oxyfuel cutting also has some challenges. One issue is that it generates a lot of heat, which can bend the metal or warp it when you cut it. Another challenge is that the cuts are not very smooth or straight.
You can fix this by using by using a comprehensive CNC flame cutting machine such as our MicroStep range which have computers equipped with software that control the torch to make more accurate and consistent cuts.