Plasma Cutting is using a machine that has a torch that creates a super-heated beam of gas which goes through a melting process of using plasma and power to create an electric arc between the electrode (a conductor that electricity can leave or enter through) in the plasma torch and the metal being cut. The metal is then melted away, with the compressed air from inside the plasma torch helping to push away the melted metal, producing a clean cut.
A plasma cutter allows you to cut through anything that is electrically conductive such as steel, stainless steel, aluminium, copper or brass.
Due to a plasma cutters localised beam, they are able to cut many shapes and details. Plasma cutters are used for an array of specialties like metal fabrication projects, or by artists and designers to create signage and sculptures, or decorative panels.
For more details on the basics of plasma cutting with picture guides, visit https://unimig.com.au/the-ultimate-guide-to-plasma-cutting/
Check out our post of Plasma Cutter 101 which has all the details and guidance you need before you buy a plasma cutter.
CNC stands for Computer Numerical Control. Therefore, a CNC plasma cutter is essentially a plasma cutter controlled by a computer. A design is uploaded to the machines software and cut out using the same principles as a normal plasma cutter, but with the added benefits of more stability, cleaner cuts, and even more intricate designs.
A plasma cutter will not allow you to cut through materials like wood, glass and plastics, or poorly conductive metals like lead and tin. This is due to there being no electrical current in the materials to react to the gas in the plasma torch.