27 Experimental Study on Self-Supported …
297
Fig. 27.2 Main effects plot
rotational speed at 7.9%. The error of the experiment is still low at 18 percent so that
the experiment can be accepted.
Figure 27.2 shows the main effect plots. These graphs show the optimum combination of welding parameter which gave the smallest amount of root deformation.
Based on Fig. 27.1, it showed that the optimum combinations were the rotational
speed of 910 rpm, triangle pin profile and closed butt joint edge preparation for the
least root deformation.
27.4 Conclusion
The optimum welding parameters for self-supported friction stir welding was
achieved by selecting the rotational speed of 910 rpm, triangle pin profile and edge
preparation of closed butt joint.
Acknowledgements The authors would like to acknowledge Universiti Kuala Lumpur (UniKL)
and Japan Malaysia Technical Institute (JMTI) for providing the required facilities and technical
assistances.
297
Fig. 27.2 Main effects plot
rotational speed at 7.9%. The error of the experiment is still low at 18 percent so that
the experiment can be accepted.
Figure 27.2 shows the main effect plots. These graphs show the optimum combination of welding parameter which gave the smallest amount of root deformation.
Based on Fig. 27.1, it showed that the optimum combinations were the rotational
speed of 910 rpm, triangle pin profile and closed butt joint edge preparation for the
least root deformation.
27.4 Conclusion
The optimum welding parameters for self-supported friction stir welding was
achieved by selecting the rotational speed of 910 rpm, triangle pin profile and edge
preparation of closed butt joint.
Acknowledgements The authors would like to acknowledge Universiti Kuala Lumpur (UniKL)
and Japan Malaysia Technical Institute (JMTI) for providing the required facilities and technical
assistances.