Influence of the welding time on plastic deformation during the friction welding of the high-speed steel and steel for tempering

Abstract

The substance of the friction welding process, form the aspect of joining the dissimilar materials, is presented in this paper. The subject matter is friction welding of the two types of steels the high-speed steel (HS 6-5-2-5) and the steel for tempering (C60). Out of several factors that are affecting the friction welding process, the focus in this paper is set on analysis of the welding time, especially the friction time. The reason for such a choice lies in the fact that the level of the axial and radial deformation, as well as the welded part shortening, depend mainly on the welding time, namely on the friction time only. The experimental part of this investigation included determination and analysis of influence of time on individual and total changes of dimensions of the welded steel parts.