Influence of tool design and process parameters on dissimilar friction stir welding of copper to AA6061-T651 joints

2015 ◽  
Vol 80 (9-12) ◽  
pp. 2073-2082 ◽  
Author(s):  
Kush P. Mehta ◽  
Vishvesh J. Badheka
Keyword(s):  
Friction Stir Welding ◽  
Process Parameters ◽  
Tool Design ◽  
Friction Stir ◽  
Dissimilar Friction Stir Welding

Parameter Optimization of AA6061-AA7075 Dissimilar Friction Stir Welding Using the Taguchi Method

2014 ◽  
Vol 695 ◽  
pp. 20-23
Author(s):  
L.H. Shah ◽  
N.F. Zainal Ariffin ◽  
Akhtar Razul Razali
Keyword(s):  
Friction Stir Welding ◽  
Taguchi Method ◽  
Process Parameters ◽  
Tilt Angle ◽  
Rotational Speed ◽  
Parameter Analysis ◽  
Optimum Process ◽  
Optimization Approach ◽  
Friction Stir ◽  
Dissimilar Friction Stir Welding

In this study, the Taguchi method was utilized to determine the optimum process parameters for dissimilar friction stir welding between AA6061 and AA7075 aluminium alloys. The Taguchi L9 orthogonal array and optimization approach was applied on three levels of three critical factors, namely rotational speed, transverse speed and tool tilt angle. The optimum levels of process parameters were determined through the Taguchi parametric design approach. Through the parameter analysis, the predicted value of the dissimilar joint’s tensile strength was calculated to be 209.7 MPa, which is in close proximity to the experimental data (219.6 MPa) with 4.5% error. It can be concluded that a high tensile value of 219.6 MPa was achieved using 1000 rpm rotational speed, 110 mm/min travel speed and 3 ̊ tilt angle.

scholarly journals Effect of Tool Design and Process Parameters on Lap Joints Made by Right Angle Friction Stir Welding (RAFSW)

2019 ◽  
Vol 3 (3) ◽  
pp. 66
Author(s):  
Mahboubeh Momeni ◽  
Michel Guillot
Keyword(s):  
Friction Stir Welding ◽  
Process Parameters ◽  
Low Cost ◽  
Lap Joints ◽  
Tool Design ◽  
Design Parameters ◽  
Lap Joint ◽  
Friction Stir ◽  
Industrial Sectors ◽  
Axial Forces

In recent decades, friction stir welding (FSW) has attracted extensive attention of academic and industrial sectors as the most considerable development in metal joining processes. FSW lap joint is an interesting alternative for rivets, fusion welds and bonding particularly in the transportation industry. In this paper, the effect of tool design and process parameters on the generated downward axial force and strength of AA6061-T6 lap joints is studied. The welds are made by a low-cost friction stir welding technique at right angle (RAFSW). The studied tool design parameters are shoulder diameter, shoulder groove depth, pin length, pin angle, pin base diameter and pin lead. Moreover, the effect of tool rotational speed, traverse speed, plunge depth and lap joint configuration is evaluated. The Taguchi method is used to design the experiments and artificial neural network (ANN) modeling is applied to predict the plunging force and the strength of the joints. The results indicate that a quality weld can be obtained at low downward axial forces during welding by proper selection of tool design and process parameters. It is identified that one can achieve a quality lap joint at traverse speeds as high as 1400 mm/min and downward axial forces as low as 3.2 kN by a low-cost RAFSW technique.

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