CHARACTERISTICS OF AA6061-T4 AND -T6 EXTRUSIONS

The main focus of this research was to investigate
force/displacement response and energy absorption
performances of axially loaded AA6061 T4 and T6
circular aluminum alloy extrusions under cutting
deformation mode. Quasi-static experimental
investigation on load/displacement and energy
absorption characteristics under cutting deformation
mode was completed utilizing specially designed
heat-treated 4140 steel alloy cutters and two
different geometries of the cone-shaped deflectors.
An almost constant force during cutting was observed,
which eliminated high peak crush force associated
with progressive folding or global bending
deformation modes. Additionally a dual stage cutting
process was initiated using two cutters in series in
this research. In addition to cutters and
deflectors, spacers of different geometries between
the cutters were also incorporated in this study.
Finally to this research, a numerical study of the
axial cutting deformation process was simulated
employing an Eulerian and Smoothed Particle
Hydrodynamic (SPH) methods.

Autorentext

Amitabha Majumder was born in 1971 in Bangladesh. He hasreceived a Bachelor's Degree in Mechanical Engineering fromBangladesh University of Engineering and Technology (BUET)andMaster of Science in Mechanical Enginering from University ofWindsor. He has authored and coauthored four journal papers andtwo conference papers.

Klappentext

The main focus of this research was to investigateforce/displacement response and energy absorptionperformances of axially loaded AA6061 T4 and T6circular aluminum alloy extrusions under cuttingdeformation mode. Quasi-static experimentalinvestigation on load/displacement and energyabsorption characteristics under cutting deformationmode was completed utilizing specially designedheat-treated 4140 steel alloy cutters and twodifferent geometries of the cone-shaped deflectors. An almost constant force during cutting was observed,which eliminated high peak crush force associatedwith progressive folding or global bendingdeformation modes. Additionally a dual stage cuttingprocess was initiated using two cutters in series inthis research. In addition to cutters anddeflectors, spacers of different geometries betweenthe cutters were also incorporated in this study.Finally to this research, a numerical study of theaxial cutting deformation process was simulatedemploying an Eulerian and Smoothed ParticleHydrodynamic (SPH) methods.