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1 2015

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Solid state friction stir welding using square groove butt joint

Thamizhmanii S., Mohideen R., Mujahid A., Zaidi A., Hasan S.

Journal of Achievements in Materials and Manufacturing Engineering

2015

Vol. 73, nr 2

118--123

Purpose: of this paper is to high light the application of Friction Stir Welding (FSW) process using square butt joint. Design/methodology/approach: The design adopted was tool spindle speed, tool plunge depth and transverse movement of the work piece. Findings: The findings are encouraging. It is possible to increase the strength of the joint by 22.45% from the basic tensile strength. The optimum tensile stress obtained was at spindle speed of transverse speed of 700 RPM at transverse speed 325 mm/min taking into consideration the fracture of the materials. The optimum travel speed for the spindle speed 700 RPM is 325 mm/min, this is because the heat generation and the time for the material to joint was increased. But the 200 mm/min is not optimum for the spindle speed 700 rpm because, there is too much heat generation and the welded part become soft by the welding. When there is not enough heat generated, the stir between materials or part will not occur or not properly welded. Research limitations/implications: The limitations in this research were proper fixture. Machine should have variable tool rotation instead of fixed machine spindle speed. Practical implications: It is possible to weld by FSW process and not tested in any application. Originality/value: The research on FSW The limitations in this research were proper fixture. Machine should have variable tool rotation instead of fixed machine spindle speed. is upcoming project and not much work done in this field. Using square shaped joint unique and no references so far using this square groove. Many of the research were by straight butt joint.