Experimental and numerical study examines residual stress impacts of drilling parameters on AL2024-T351, indicating implications for aerospace applications.
Key Points
The study aims to understand how rotational speed and feed rate affect residual stresses in aluminum alloy AL2024-T351 during drilling.
Experimental drilling conducted with an 8 mm HSS drill at speeds from 375 to 1250 rpm and feed rates of 0.12 to 0.30 mm/rev.
Residual hoop stresses were measured using surface-mounted strain gauges.
A coupled thermo-mechanical finite element model was developed in Abaqus/Explicit for stress simulation.