Analysis of thermal cycles during soldering and welding of 08kp steel

Results of research on determining the value of thermal cycles using various methods of preparation of permanent joints made of 08kp steel: arc TIG welding, TIG brazing, plasma brazing, TIG and plasma brazing with pulsed current are presented. The analysis of the thermal curves of the cycles obtained experimentally and by calculation showed that their geometric shape coincides qualitatively, but quantitatively the calculated values are somewhat higher than the experimental ones according to the time distribution. It was established that plasma brazing with the use of pulsed current provides the minimum amount of thermal cycles and is the most effective method of obtaining permanent joints of low carbon 08kp steel