Work

Refill friction stir spot welding: Effects of energy input on residual stresses and mechanical properties in AA6082-T6

Year: 2025

Type: article

Abstract: As refill friction stir spot welding is seen as a potential successor to riveting and resistance spot welding in the automotive and aircraft industries, interest in the dynamic load-bearing capacity of welded joints is also growing. Since dynamic load-bearing capacity is strongly dependent on the residual stress state, this study investigated the effects of welding parameters on the residual stress distribution of refill friction stir spot welded joints. In addition to temperature and hardness, residual stresses were measured using X-ray diffraction. Among other aspects, it is shown that the absolute level of residual stresses within the spot weld does not depend on the welding parameters, but the area in which they act does.

Source: Procedia Structural Integrity

DOI: 10.1016/j.prostr.2025.06.129

Authors: Niklaas Becker, Emad Maawad, Benjamin Klusemann

Institutions: Helmholtz-Zentrum Hereon, Leuphana University of Lüneburg

Language: English

Topic: Advanced Welding Techniques Analysis

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funder: Bundesministerium für Wirtschaft und Klimaschutz

Award: G2263841604