Friction Stir Welding in the Aircraft Production

Abstract

The paper presents the results of experimental development of the technology of friction stir welding to obtain a nonseparable connection of a special aerospace aluminum, titanium and magnesium alloys, high-temperature steels. Regularities and models of heat balance in the welding zone have been determined, which make it possible to predict the technological possibilities of high-speed friction welding. It is established that high-speed friction welding by mixing allows to obtain a high-quality connection at lower loads on the design of the equipment. On the basis of studies of macro-and microstructure, microhardness, level of residual stresses and strength tests, technological recommendations on the choice of welding conditions and conditions were obtained. Presented of experimental and industrial development of special equipment, high-speed friction welding, design and manufacturing of high hardness tools of complex spatial shapes for welding aircraft materials.

Emissions of future conventional aircrafts adopting evolutionary technologies

“…In this case, the trend is to use manufacturing processes that have less impact on the environment, such as friction welding. This is a process where a rotating nonconsumable tool is positioned between two sheets or plates of materials to be welded, resulting in little distortion, great dimensional stability, and little residual stress ( Kuritsyn et al, 2020 ). This process consumes little energy and produces minimal if any material waste.…”

Measuring and Testing Composite Materials Used in Aircraft Construction

“…The specimens marked 3 and 4 delaminated much faster than the other specimens after exceeding 150 MPa, a phenomenon that may have been caused by previous microcracks in the structure of the specimens. [14] The obtained dependence is characteristic for brittle materials, because the maximum loading force destroys the sample. The tensile strength value of the composite laminate Rm is equal to 419 ± 29.7 MPa.…”