COMPARISON OF DIFFERENT MATERIAL CUTTING TECHNOLOGIES IN TERMS OF THEIR IMPACT ON THE CUTTING QUALITY OF STRUCTURAL STEEL

The paper deals with a comparison of the most frequently used thermal cutting technologies applied to the structural, low carbon steel EN S355 JO in engineering enterprises with a focus on experimental measurement and evaluation of characteristics of the heat affected zone. It gives a mutual comparison of these technologies in terms of the achieved heat affected zone. The goal of this paper was to use the property changes in the used material (affected by laser, plasma arc and oxygen cutting) as the quality indicator of the cutting process.Original Abstract: U radu se daje usporedba najcesce koristenih toplinskih postupaka rezanja, koje koriste proizvodne tvrtke, u primijeni na konstrukcijskom, nisko ugljicnom celiku EN S355J0 s naglaskom na eksperimentalna mjerenja i vrednovanje svojstava zone utjecaja topline. Rad prikazuje usporedbu tih tehnologija u kontekstu dobivene zone utjecaja topline. Cilj ovog rada je koristenje spoznaje o promjenama svojstava koristenog materijala na povrsini reza (dobivene laserom, plazmom i plinskkn rezanjem) kao pokazatelja kvalitete procesa rezanja.