Influence of high-frequency electrode vibrations on the geometry of penetration at automatic submerged arc cladding

Electric Arc Deposition of an Anticorrosive Layer with Two Strip Electrodes

“…The reduced value of the arc voltage was associated with the prevention of leakage of liquid slag in front of the electrode in places where the surfacing process was carried out according to the "descent" scheme. To ensure controlled mechanical transfer, in order to reduce the mobility of the slag pool, vibrations with a frequency of 50 Hz were superimposed on the feed rate of strip electrodes according to [9,11]. Surfacing was carried out in 4 layers for one strip (Nl = 4) and in 2 layers for two-strip surfacing (Nl = 2).…”

Calculation of the penetration zone geometric parameters at surfacing with a strip electrode

“…Such a distribution law cannot be used for strip electrodes because the character of heat distribution differs from a normal one. At the same time, work [12] indicates that the weld pool shape formation process is a complex dynamic object with strong non-linearity, multi-parametric internal connections, and a multitude of random and uncertain factors. Simulation based on the theory of a non-linear systems control can overcome these difficulties.…”

Modeling the Influence of Mechanical Control Impacts on the Distribution of the Temperature Field in the Base Metal during Surfacing with a Strip Electrode

“…As a rule, the functional dependence of the power change in most cases is provided by a programmable welding current source that implements a certain control law for the mode parameters. The use of programmed heat input into the weld pool due to periodic oscillations of the electrode relative to the item [9,10] or vice versa [11,12] complicates the modeling of the temperature field distribution in the base metal and the deposited layer. This is due to the fact that the function of change in the thermal power in the base metal is characterized by a large number of controllable parameters, which does not allow the use of known techniques for sources of variable power for calculating the distribution of heat in the weld and near-weld zone [13,14].…”