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Description / Abstract:
Application
This procedure defines the acceptance test for Flow Drill Screw
(FDS) schedule development for aluminum, low carbon steel sheet and
extrusions. All such sheet material must pass minimum performance
testing. Consult the appropriate Engineering Material Specification
for material exceptions. Testing confirms that the correct screw
and processing parameters were used to satisfactorily join
materials together. Cross sections of the FDS joint must be
evaluated to insure a robust joint. After the correct tooling has
been identified, lap shear and coach peel samples are fabricated.
Initial testing requires a sample size of 30 each for the strength
tests. Samples are pulled on a tensile test machine.