Papers by Keyword: High-Frequency Welding

Abstract: Based on the production line technology of high-frequency welding H-beam steel, a High-frequency welding device which could be used in a H-beam less than 100mm steel was designed in this work. After virtual prototype established and kinematics Simulation was carried by Solidworks and Cosmos/motion respectively, the trajectory of contact terminal was defined. And the optimal vee angle, high frequency and some other technological parameter were determined through Ansys software, which provides important reference for the design of high-frequency welding H-beam steel.

Abstract: Besides weldable component geometries for the high-frequency welding process also possible process and system induced activated material reactions during discontinuous high-frequency welding are presented in this paper. Among others such material reactions can be a locally limited thermal influence on the base metal, defined plastic derformations during the upsetting process as well as grain refinement in the weld seam, comparable to thermomechanical treatment during rolling for increasing strength or ductility.

Abstract: The subproject B5 examines the welding technological processing of locally hardened materials to produce structures and knots by means of high-freqency welding (HFW). The aim of B5 is a defined intervention in process and plant technology to control current voltage, temperature and compressive stress distribution of the entire weld seam. Particularly the effects on locally hardened areas have to be measured and optimized. Also the process specific advantages of HFW (e.g. plastic deformations and the application of an in situ heat treatment) have to be examined and optimized to improve structural strength.

Abstract: This paper presents the focus of research and the structure of the Collaborative Research Centre SFB 675 “Creation of High-Strength Structures and Joints by setting up local material properties” funded in 2006 by the German Research Foundation (DFG).