Aerodynamic diameter distribution of aerosols from plasma arc cutting for steels at different cutting power levels

Forecasting the results of hybrid laser-plasma cutting of carbon steel

“…6, 8) cutting were determined. The results obtained were compared with published data [1][2][3][4][5][6][11][12]. It was found that the data obtained coincide with the literature with an accuracy of 10 %, which is acceptable in technological calculations.…”

“…Typically, such parts are made of carbon steel and used for subsequent assembly (welding) in structures (products of engineering, automotive, shipbuilding industries, etc.). It was shown in [1] that one of the main disadvantages of plasma cutting consists of a significant amount of aerosols and solid particles released during the process. Aerosol characteristics are largely related to cutting parameters such as metal type, cut length and plasma arc current.…”

“…To simplify the process of computer simulation, generalized thermophysical characteristics of structural carbon steels given in Table 2 were used. Based on [1][2][3][4], conventional technological schemes and modes (Table 3) for plasma and laser cutting 5-and 10-mm steel sheets were chosen.…”

“…In the course of computer simulation, according to the recommendations of [1][2][3][4], the modes of cutting processes were selected (Table 3), according to which the temperature distribution in the edges of the cut and the thermal cycles of the studied processes were determined using the SYSWELD software package (Fig. 5-10).…”

“…Cold extrusion processes provide high surface quality and precise sizes of stamped blanks and components. This, in turn, reduces or eliminates the need for additional machining by cutting [1,2]. The most common conventional extrusion techniques are the longitudinal (inverse and direct) extrusion methods, which are characterized by the flow of the…”