Open AccessControl of electron beam wielding parameters based on the gap scanning system data during the welding process
Author(s) -
A. N. Kasitsyn,
R. Yu. Agafonov,
А. В. Леонов,
G. V. Grigoriev
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/759/1/012013
Subject(s) - welding , electron beam welding , cathode ray , materials science , electron , beam (structure) , optics , physics , composite material , quantum mechanics
Influence of the gap between the welded edges when sealing the case of electronic devices on the magnitude of the electron emission sensor signal in the process of electron beam welding (EBW) is studied. The impact of electron beam current variation at a constant value of the focusing system current on the penetration depth with the increasing gap between the welded edges is determined. The dependence of the length of the weld at different electron beam currents on samples with an increasing gap between the welded edges is studied. The possibility of controlling the process of electron beam welding by electronic emission from the weld pool is presented. A sensor for electronic emission registration is proposed, which includes an electron collector and an electron current data record system as a part of the EBW installation. The efficiency of the electronic emission sensor directly in the process of sealing under precision welding modes is shown.