Investigation on Mechanical Properties …
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3 Result and Discussion
Two various AA6082-AA7075 aluminum alloys were successfully combined by
using FSW. In advance to examine the mechanical properties of the welded specimens
using different mechanical tests were conducted.
3.1 Tensile Test
Once complete the material joining process to analyze the tensile strength of welded
specimens to decided joint strength. The test specimens were prepared as per the
ASTM standards along with the tool traverse of the weld direction. The maximum
tensile strength of the weld joint is achieved at 1300 rpm and the welding speed is
60 mm/min from the straight cylindrical tool, since the welding speed is controlled
by medium operating condition meanwhile the tool travel speed is in maximum.
The before and after tensile specimens and dimensions as shown in Fig. 3 and
Table 3. The UTM was used to check a tensile test for the weld specimens. The
tensile test values are listed in Table 4 and the graphical representation of the tensile
test as illustrated in Fig. 4.
Fig. 3 Sample specimen diagram for before & after tensile test
Table 3 Dimensions of
tensile test specimen
Parameter
Dimension (mm)
Overall Length
100
Gauge Span
25
Grip Distance
35
Grip Width
10 and 6
Fillet Radius
2