Influence of the Initial Clearance between Surfaces on the Quality of Joints During Welding by the High-speed Impact Using Electric Explosion of the Conductor

Abstract

UDC 621.791.4: 537.5

The influence of the initial clearance between welding surfaces from dissimilar metals (steel 20 + copper M1) during welding by the high-speed impact on the quality of joints when using an electric explosion of the conductor is explored. It is established that the most qualitative welding joint without discontinuities in the interface area is formed during welding with clearance h₀ = 4.0 mm. Thus, the maximum total wave formation including the waves of different lengths is observed. This wave formation inlarges the contact surface, thus providing for additional mechanical adhesion of joined metals.

Keywords: welding surfaces, dissimilar metals, high-speed shock welding, electroexplosion of conductor, contact zone, wave formation, contact surface, mechanical bond of welded metals.