Gas Cutting
- Ferrous metal is heated in to red hot condition and a jet of pure oxygen is projected onto the surface, which rapidly oxidizes
- Oxides having lower melting point than the metal, melt and are blown away by the force of the jet, to make a cut
- Fast and efficient method of cutting steel to a high degree of accuracy
- Torch is different from welding
- Cutting torch has preheat orifice and one central orifice for oxygen jet
- PIERCING and GOUGING are two important operations
- Piercing, used to cut a hole at the centre of the plate or away from the edge of the plate
- Gouging, to cut a groove into the steel surface
Automatic Gas Cutting
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