Influence of Gas Tungsten Arc Welding Parameters in Aluminium 5083 Alloy
The present work deals with the identification of the best combination of welding parameters, in TIG welding of Aluminium alloy 5083. In this study two level full factorial experimental design is considered which consists of two factors and two levels. Inorder to avoid experimental errors two replications are performed for each experimental combination. The working ranges of welding parameters for conducting experiments are initially obtained by trial and from literature survey. After the experiment, various tests like Tensile test; Microhardness, Macrostructure and Microstructure study are conducted to the welded specimens. The analysis of the test results is conducted and the combination of welding parameter ranges that gives best result is found. This combination can be considered as good working ranges for TIG welding of Aluminium alloy 5083.
Influence of Welding Speed on Tensile Strength of Welded Joint in TIG Welding Process
Tungsten Inert Gas welding is one of the widely used techniques for joining ferrous and non ferrous metals. TIG welding process offers several advantages like joining of unlike metals, low heat effected zone, absence of slag etc compared to MIG welding. The accuracy and quality of welded joints largely depends upon type of power supply (DCSP or DCRP or ACHF), welding speed, type of inert gas used for shielding. This paper deals with the investigation of effect of welding speed on the tensile strength of the welded joint. Experiments are conducted on specimens of single v butt joint having different bevel angle and bevel heights. The material selected for preparing the test specimen is Aluminium AA6351 Alloy. The strength of the welded joint is tested by a universal tensile testing machine and the results are evaluated.
Microstructure and dry sliding wear behavior of Cu–10%Al–4%Fe alloy produced by equal channel angular extrusion
Abstract A commercial aluminum bronze alloy (Cu–10%Al–4%Fe) produced by hot-rolling was subjected to equal channel angular extrusion (ECAE) process at high temperature. The effect of ECAE on microstructure, mechanical and tribological properties of the alloy was investigated. Experimental results showed that grain size decreased and the second phase was rearranged after ECAE. The hardness and strength of the alloy with ECAE were higher than that of the alloy without ECAE and increased with the increase pass number. The wear resistance of the alloy after ECAE was significantly improved.