Method and apparatus for cutting stainless steel

摘要

Gas cutting of a plate material such as of stainless steel or stainless-clad steel is efficiently carried out by advancing a cutting torch along a mild steel bead formed on the material by melting thereon mild steel using a welding torch. When the material preheated in advance is burnt by directing a jet of oxygen thereto, the mild steel bead on the material effects to elevate the combustion temperature, thereby allowing refractory slag produced in cutting to be fused and blown off by virtue of the jet of oxygen.