Open AccessDevelopment of electron-beam welding method with inserts
Author(s) -
I. A. Kharitonov,
В. К. Драгунов,
A. L. Goncharov,
E. K. Titarev,
M. A. Portnov
Publication year - 2019
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/681/1/012024
Subject(s) - welding , materials science , electron beam welding , cathode ray , composite material , homogeneous , base metal , austenite , metallurgy , penetration (warfare) , beam (structure) , electron , structural engineering , microstructure , physics , quantum mechanics , operations research , engineering , thermodynamics
The paper is devoted to the study of welded joints formation process both from homogeneous and dissimilar materials. The investigated welded joints were made by an electron beam using intermediate inserts of small thickness in a narrow gap. The influence of insert size as well as gap size on the stability of weld formation is shown. Electron beam oscillation configurations which eliminate incomplete penetration in weld root are determined. Values of thermal efficiency are experimentally found for different welding speeds. The results of structure study for dissimilar welded joints of plates from carbon steel 20 and austenitic corrosion-resistant AISI 316L steel are presented. The values of penetration rate for base and filler metal are calculated and experimentally confirmed.