Abstract :
Friction stir welding is an advance in the field of friction welding. Friction
stir welding has the opportunity to become 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 analyzing the effect of
angular variations in the tapered probe on friction stir welding joints on Al 2024-
T3 material.
The research method was carried out by a friction stir welding process
using a feedrate of 20 mm / minute and angle variation of the probe 0 °, 3 ° and 6
° with a plate-shaped specimen. Furthermore, the connection of aluminum
material from the friction stir welding process was tested using tensile testing and
macro photo testing.
The results of the macro photo analysis do not show differences in the
specimen variations in the tapered probe angle 0 ° with tapered probes 3 ° and 6
°. From the results of the tensile test that has been done for the ultimate tensile
strength in the specimen using a 0 ° tapered angle probe at the weld nugget area.
Specimens using tapered probes at 3 ° and 6 ° fail in the base material. In
specimens of variation 0 ° the tensile strength value is 38.53% higher than the
specimen value of 3 ° and 40.13% higher than the specimen value of 6 °.