Stabilization of high-current glow discharge by the active (ballast) resistor while the precision welding
Year: 2018
Type: article
Abstract: Purpose.Thepurposeofthis work is to determine the value of the external active (ballast) resistance switched on the gas-discharge gap that provides stabilization of the burning process of a high-current glow discharge in regimes that are used in precision welding processes: discharge currents 1 ... 30 A, gas pressures of 1.33 ... 13.3 kPa.Approach.Using the methods of the theory of gas discharge physics, electrodynamics and electromagnetism, the main causes of the appearance of external perturbations and instabilities that lead to the emergence of a stable arc discharge on the local sections of the surfaces of the weldedpartsweredetermined.Findings.The result of the work is the developed method of analytical determination of the optimal value of the external stabilizing resistance, which ensures a discrepancy between the calculated data and the similar ones obtained during the experiments at the level of 15 ... 20%.Practically value.The results of the research are of interest for the enterprises of machine-building and instrument-making, power and electrical engineering industries in the manufacture of diffusion-welded assemblies of dissimilar materials in a gas-discharge plasma of a glow discharge of medium pressures
Authors: G. Bolotov, R. Ryzhov, M. Bolotov
Language: English
Topic: Vacuum and Plasma Arcs
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2900514484