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Title: Optimization of process parameters for friction stir welding of cast aluminium alloy A319 by Taguchi method
Authors: Jayaraman, M
Sivasubramanian, R
Balasubramanian, V
Lakshminarayanan, A K
Keywords: Cast aluminium alloy
Friction stir welding
Nonlinear regression
Taguchi method
Tensile strength
Issue Date: Jan-2009
Publisher: CSIR
Abstract: In order to improve strength of welded joints in fusion welding of cast Al alloys, friction stir welding (FSW) technique may be employed to eliminate porosity, micro-fissuring, hot cracking etc. This paper discusses use of taguchi experimental design technique for maximizing tensile strength of friction stir welded cast aluminium alloy A319. Using ANOVA and signal to noise ratio of robust design, effect on tensile strength of FSW process parameters (tool rotation speed, welding speed and axial force) is evaluated and optimum welding condition for maximizing tensile strength is determined. In order to correlate process parameters and measured tensile strength, a mathematical model has been developed by nonlinear regression analysis.
Description: 36-43
ISSN: 0022-4456
Appears in Collections:JSIR Vol.68(01) [January 2009]

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