In this study, the effect of temperature on the diffusion welding of AZ31 magnesium alloy and 7075 aluminum was discussed. Diffusion welding temperature was the most important parameter since all mechanisms are sensitive to temperature in Diffusion welding method. Intrusive contacts between the two alloys at temperatures of 430, and 440 °C 450 and took 60 min. In all tests constant pressure and...

Comparison of welding influence on structural strength Al-Mg-Si alloy (AW6082-T6), supplied with 10 mm thick sheets, is made. Within the research tension and impact tests joints, made argon-arc friction stir welding, were carried out. During we observed following: plasticity decrease for joint zones, increase weld metal in defects strength.

Abstract Welding of dissimilar metals is one the most substantial requirements industries and extensively used in engineering applications. Dissimilar friction crush welding between oxygen-free copper (C1020) aluminum (1145-H1) sheets with a thickness 1 mm was investigated this work using different flange edge heights (2, 2.5 3 mm) gaps (0.5 Cu-Al sheets. Tool rotational speed 1500 rpm feed rat...

V. Lazić, D. Arsić, S. Aleksandrović, A. Ilić, L. Ivanović, M. Djordjević, Faculty of Engineering, University of Kragujevac, Kragujevac, Serbia A. Sedmak, Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia This paper presents the analysis of the influence of temperature on mechanic properties of the base material and welded joints made of high strength steel. The joints...

In this study, 7075 aluminum alloy with a thickness of 10 mm was successfully welded with no obvious defects by pulsed variable polarity plasma arc (PVPPA) welding. The mechanical properties of PVPPA welded joints have been researched by post weld heat treatment (PWHT). The results indicate that the heat treatment strongly affects the mechanical properties of the welded joints. The tensile stre...

Adhesive joints are continuously emerging as candidate to replace traditional fastening systems, such as riveting or welding, in primary structural applications. A wide class of components belonging to electronic, automotive and aerospace industries contains adhesive joints, however, the reliability during service constitutes a major technical problem as these contain flaws. Therefore, their us...

Transition joints between austenitic stainless steels and ferritic low alloy steels are extensively utilized in many high-temperature applications in energy conversion systems. Problems related to the use of such dissimilar metal welds (DMWs) have long been recognized, because of premature failures often occurring during service, connected to thermal stresses generated at the weld interface and...

............................................................................................................................ii APPENDED PAPERS.................................................................................................................iii DIVISION OF WORK BETWEEN AUTHORS.................................................................................iv TABLE OF CONTENTS........

In underwater wet welding, the unstable welding process caused by generation and rupture of bubbles chilling effect water on area result in low quality welded joints, which makes it difficult to meet practical application marine engineering. To improve stability joining quality, a mixture flux with glass or epoxy resin was placed zone before welding. this paper, welds’ appearance, geometry stat...

Abstract The production of a ferrofluid container, intended for use in the KRAKsat (CubeSat type) satellite space conditions, is presented. Mechanized laser beam welding AISI 316L stainless steel test joint and container prototype was developed tested. welded joints were examined by non-destructive visual, penetration radiographic testing destructive macro- microscopic examination, static tensi...