Sheet metal cutting: The correct process for cutting metal

If the cutting process is classified based on the thickness of the plate, self flame cutting is used first. These processes are used for medium to large thickness non alloy steel and low alloy steel. It is also very popular because it is cost-effective for plate thicknesses of 50 millimeters (2 inches) and above. There is currently no alternative cutting method for plates with a thickness exceeding 250 mm (10 ").

In oxygen fuel flame cutting, the flame heats the material on the surface until it reaches the ignition temperature (between 1150 and 1250 ° C for mild steel). Metals burn due to the supply of oxygen. The heat of combustion in turn heats the material below to ignition temperature. This allows the process to automatically (automatically) continue into depth. The unburned iron oxide turns into a liquid and is blown out of the joint together with cutting oxygen. It can be deposited under the material in the form of slag.

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