Optimization of Process Parameters of Friction Stir Welded Mg alloys for Maximizing Mechanical Propertie

2021 ◽  
Vol 9 (VI) ◽  
pp. 222-226
Author(s):  
Prof. J. Sathees Babu
Keyword(s):  
Mechanical Properties ◽  
Mathematical Model ◽  
Friction Stir Welding ◽  
Process Parameters ◽  
Feed Rate ◽  
Surface Hardness ◽  
Mg Alloys ◽  
Axial Thrust ◽  
Friction Stir ◽  
Optimization Of Process Parameters

Mechanical properties of alloy such as UTs, surface hardness etc. of friction stir welding (FSW) jones were largely depend on the parameters of welding, such as speed of rotating tool, feed rate and axial thrust etc. by optimizing these parameters will results in better design of the weldments. To attain desired mechanical properties various optimizing techniques are available. In this paper an experiment is conducted on by varying process parameters and evaluating the mechanical properties (UTs) of the friction stir weldments. From the collected information data is created and used to create a mathematical model for optimization of the process parameters

Optimization of Process Parameters of Friction Stir Welding by Taguchi Method

2019 ◽  
Vol 7 (1) ◽  
pp. 17-23
Author(s):  
Azzam Sabah Albunduqee ◽  
Hussein R Al-Bugharbee
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Friction Stir Welding ◽  
Taguchi Method ◽  
Process Parameters ◽  
Rotational Velocity ◽  
Welding Parameters ◽  
Optimum Process ◽  
Friction Stir ◽  
Optimization Of Process Parameters

Friction Stir Welding is one of the technologies of joining solid states, which still attracts the researchers’ interest.  In welded joints the mechanical properties are affected by a number of mechanical properties of the joined materials and by the process parameters as well. In the present study, the effect of a number of friction stir welding parameters on the tensile strength of the welded joint have been investigated using the Taguchi method and the analysis of variance (ANOVA). The study considers different levels of friction stir welding variables; namely, different rotational speeds of (2000, 1600, 1250 rpm), different welding speeds (12.5, 16, 20 mm / min), and different welding tilt angles (0, 1, 2 degrees).  The optimum process parameters and their contribution rate were selected based on the Taguchi method for test design and by using the Minitab 16 program. In this study, the best results (i.e, higher tensile strength) were obtained at a rotational velocity of 1600 rpm, linear velocity of 16 mm / min, and welding angle, 1o. The highest tensile strength was obtained under these conditions.                                                                                       

A study on the effect of cooling on microstructure and mechanical properties of friction stir-welded AA5086 aluminum butt and lap joints

2017 ◽  
Vol 233 (6) ◽  
pp. 1156-1165 ◽  
Author(s):  
Adel Sedaghati ◽  
Hamed Bouzary
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Feed Rate ◽  
Rotational Speed ◽  
Lap Joints ◽  
Tensile Behavior ◽  
Water Cooling ◽  
Friction Stir ◽  
Microstructural Behavior ◽  
Constant Feed Rate

In this paper, the effect of water cooling on mechanical properties and microstructure of AA5086 aluminum joints during friction stir welding is investigated. For doing so, the mechanical and microstructural behavior of samples welded both in air and in water was analyzed. Tests were performed involving both butt and lap welds and the results were compared. The effect of rotational speed at constant feed rate of 50 mm/min and changing rotational speed ranging from 250 to 1250 r/min was investigated. The results showed a significant change in the tensile behavior of the butt-welded specimens due to water cooling. In addition, welding was performed at constant spindle speed of 800 r/min and various traverse speeds (25 mm/min to 80 mm/min) to determine the effect of feed rate. The strength increases at first, but then decreases dramatically along with the feed rate which is due to the occurrence of a groove defect. Results showed some generally positive impacts of water cooling which are discussed in terms of tensile results, hardness distributions and microstructure analysis.

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