Abstract :
Friction stir welding is an advance in the field of friction welding. Friction
stir welding has the opportunity to be a welding process that will be used in the
future. One of its uses is as a substitute for the rivet method on the plate-shaped
material. In the world of aviation this method can be used to connect aircraft
fuselage skin material. This study focused on finding optimization values from several
variations used with the Taguchi method.
The research method was carried out with a friction stir welding process on
plate-shaped specimens. The parameters used are the angle of the probe (0o; 3o; 6o),
feed rate (30 mm / min; 60 mm / min; 72 mm / min) and spindle speed (910 rpm;
1500 rpm; 2280 rpm) with the slope of probe 3o. Furthermore, the connection of
aluminum material from the friction stir welding process was tested by hardness
testing. The analysis process uses the Taguchi method, which is a new methodology
in the field of engineering that aims to improve the quality of a product and natural
processes while simultaneously reducing costs and resources to a minimum.
The results of the analysis show that the parameters that influence the value
of the optimization are the spindle speed, feed rate and those that do not affect the
probe angle. The parameter obtained to achieve the optimum value is 0o; feed rate 72
mm / min; spindle speed 1500 rpm. The minimum difference between the values
predicted and what was observed from this confirmation experiment was 5,13%