Open AccessThe study of the welding relief shape influence on the linear friction welding process
Author(s) -
I. M. Gatiatullin,
V.R. Galimov,
A. Medvedev,
Д. В. Каретников
Publication year - 2021
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/1155/1/012040
Subject(s) - welding , allowance (engineering) , friction welding , materials science , joint (building) , indentation hardness , electric resistance welding , metallurgy , shear (geology) , composite material , structural engineering , mechanical engineering , engineering , microstructure
The study of the welding process of asymmetric parts made of Ti-6A1-4V alloy was made to expand the field of application of the process of linear friction welding and to improve the use of technology of existing assemblies. During of the study, it was found that the process of welding T-joints has features in a longer duration of the unsteady stage and an increase in the amplitude value of the shear force during the steady state. Welded joints do not contain seam flaws over the area of the welded joint, which it made unnecessary to assign an allowance along the perimeter of the welded section. The change in conditions at the joint is expressed in an increase in the microhardness of the welded seam in comparison with the Ti-6A1-4V joints, which are produced by the traditional technology more than 50 HV.